Data Quality Reports for Session: 116573 User: perez Completed: 12/18/2008


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D001107.2NSA/C1 data loss due to cut fiber optic cablensamettwrC1.a1, nsaorgC1.a1, nsapwsC1.a0
D011119.2NSA/METTWR/C1 - Met Tower Data Incorrect During Calibrations/ChangeoutsnsamettwrC1.a1, nsamettwrC1.b1
D020402.2NSA/METTWR/C1 - C1 SPURIOUS INFORMATION IN DATA HEADERnsamettwrC1.b1
D020402.3NSA/METTWR/C1 - C1 WIND SPEED DATA QUESTIONABLEnsamettwrC1.a1, nsamettwrC1.b1
D020402.4NSA/METTWR/C1 - C1 WIND DIRECTION DATA SUSPECTnsamettwrC1.a1, nsamettwrC1.b1
D020424.1NSA/METTWRC1 - METTWRCQ DATA REPORTED AS -9999nsamettwrC1.a1, nsamettwrC1.b1, nsaorgC1.a1, nsaorgC1.b1, nsapwsC1.a1, nsapwsC1.b1
D020424.2NSA/METTWRC1 - METTWRC1 NO DATA COLLECTED FROM TOWERnsamettwrC1.a1, nsamettwrC1.b1, nsaorgC1.a1, nsaorgC1.b1, nsapwsC1.a1, nsapwsC1.b1
D020610.2NSA/METTWR/C1 - Wind Speed data intermittently badnsamettwrC1.a1, nsamettwrC1.b1
D020611.1NSA/METTIPTWR/C2 - Data missing due to Power FailurensametC2.00, nsamettiptwrC2.a1, nsamettiptwrC2.b1
D021205.1NSA/BMET/C2 - NSA/METTIPTOWER/C2 - C2 MET DATA MISSINGnsamettiptwrC2.a1, nsamettiptwrC2.b1
D030411.4NSA/C2 - Missing met, pws, snodep data due to comm errornsamettiptwrC2.a1, nsamettiptwrC2.b1, nsapwsC2.a1, nsapwsC2.b1, nsasnodepC2.a1
D030528.5NSA/METTWR/C1 - C1/METTWR PRESSURE DATA MISSING AND INCORRECTnsamettwrC1.a1, nsamettwrC1.b1
D040722.2NSA/METTWR/C1 - Chilled Mirror transmit logic board chipset unsuited for Arctic
temperatures
nsamettwr4hC1.b1
D040722.3NSA/METTWR/C2 - Chilled Mirror grounding and timing issuesnsamettwr2hC2.b1
D040728.1NSA/METTWR/C1 - CMH Dew Point and RH data Incorrectnsamettwr4hC1.b1
D041011.2NSA/METTWR/C1 - 20m Temperature/RH Sensor Failingnsamettwr4hC1.b1
D041101.1NSA/METTWR/C1 - Instrument problem, Frosting/Condensationnsamettwr4hC1.b1
D041112.1NSA/METTWR/C2 - Instrument problemnsamettwr2hC2.b1
D041214.1NSA/METTWR/C1 - All 10m level Data Missingnsamettwr4hC1.b1
D050124.2NSA/METTWR/C1 - CMH data intermittently poornsamettwr4hC1.b1
D050527.2NSA/METTWR/C1 - Incorrect Maximum for Precip Valuesnsamettwr4hC1.b1
D050527.3NSA/METTWR/C2 - Incorrect Maximum for Precip Valuesnsamettwr2hC2.b1
D050727.1NSA/METTWR/C1 - CMH mirror dirtynsamettwr4hC1.b1
D050920.5NSA/METTWR/C1 - CMH Data Missingnsamettwr4hC1.b1
D051011.1NSA/METTWR/C1 - 2m wind Direction Sensor Failednsamettwr4hC1.b1
D051025.2NSA/METTWR/C1 - Data 1-minute behindnsamettwr4hC1.b1
D051101.4NSA/METTWR/C1 - Reprocess: Wind direction data incorrectnsamettwr4hC1.b1
D060223.3NSA/METTWR/C2 - CMH Data incorrectnsamettwr2hC2.b1
D060223.4NSA/METTWR/C2 - PWS data incorrectnsamettwr2hC2.b1
D060303.2NSA/METTWR/C1 - CMH temp inaccuratensamettwr4hC1.b1
D060323.1NSA/METTWR/C1 - 10m Wind Speed Lownsamettwr4hC1.b1
D060323.2NSA/METTWR/C1 - 10m Wind Speed Intermittently Lownsamettwr4hC1.b1
D060323.3NSA/METTWR/C1 - 40m Wind Speeds Intermittently Lownsamettwr4hC1.b1
D060426.2NSA/METTWR/C2 - CMH Data Suspectnsamettwr2hC2.b1
D060426.6NSA/METTWR/C1 - CMH Data Suspectnsamettwr4hC1.b1
D060526.3NSA/METTWR/C1 - Wind direction measurements suspectnsamettwr4hC1.b1
D060817.4NSA/METTWR/C1 - Reprocess: Barometric Data Changed from hPa to kPansamettwr4hC1.b1
D060818.1NSA/METTWR/C2 - Reprocess: Barometric Data Changed from hPa to kPansamettwr2hC2.b1
D060913.2NSA/METTWR/C2 - CMH data missing and/or incorrect during maintenance.nsamettwr2hC2.b1
D060913.3NSA/METTWR/C2 - PWS data missing/incorrect due to maintenance.nsamettwr2hC2.b1
D060913.4NSA/METTWR/C2 - Met data incorrect due to tower being lowered for maintenance.nsamettwr2hC2.b1
D061003.1NSA/METTWR/C1 - All data from 10m Level Missingnsamettwr4hC1.b1
D061023.1NSA/METTWR/C1 - 10m level loss of powernsamettwr4hC1.b1
D061025.1NSA/METTWR/C1 - 2m T/RH probe aspirator fan failednsamettwr4hC1.b1
D061213.1NSA/METTWR/C1 - CMH Sensor Calibrated Incorrectlynsamettwr4hC1.b1
D061213.2NSA/METTWR/C1 - 40m wind sensor heater failurensamettwr4hC1.b1
D070226.1NSA/METTWR/C1 - 40m Wind Direction Data Suspectnsamettwr4hC1.b1
D070413.1NSA/METTWR/C1 - PWS Data Questionablensamettwr4hC1.b1
D070529.1NSA/METTWR/C1 - 20m RH Data Questionablensamettwr4hC1.b1
D080325.1NSA/METTWR/C1 - Intermittent missing datansamettwr4hC1.b1
D080326.2NSA/METTWR/C1 - 2m Wind Direction Sensor Freezingnsamettwr4hC1.b1
D080408.2NSA/METTWR/C1 - CMH Intake Fan Failurensamettwr4hC1.b1
D080611.1NSA/METTWR/C1 - 2m Datalogger Failednsamettwr4hC1.b1
D080612.1NSA/METTWR/C1 - CMH required Calibrationnsamettwr4hC1.b1
D080731.1NSA/METTWR/C1 - 2m level data incorrectnsamettwr4hC1.b1
D981102.1NSA/TOWER - Mislabeled tower sensorsnsametC1.00, nsamettwrC1.a1
D991116.1NSA/METTOWER - Questionable NSA Met-tower wind datansametC1.00, nsamettwrC1.a1
D991116.2NSA/METTOWER - Questionable NSA Met-tower wind datansametC1.00, nsamettwrC1.a1
D991129.1NSA/METOWER - Reprocess: Incorrect NSA wind direction minima and maximansametC1.00, nsamettwrC1.a1


DQRID : D001107.2
Start DateStart TimeEnd DateEnd Time
03/14/2000000004/06/20002359
Subject:
NSA/C1 data loss due to cut fiber optic cable
DataStreams:nsamettwrC1.a1, nsaorgC1.a1, nsapwsC1.a0
Description:
The fiber optic line connecting the MET TWR to the data collection
facility was accidentally cut during snow removal.  Data are 
unrecoverable.
Measurements:nsamettwrC1.a1:
  • Minimum Dew Point Temperature(dew_pt_temp_min)
  • Wind Speed out of range error(win_spd_out_of_range_error)
  • Mean Dew Point Temperature(dew_pt_temp_mean)
  • Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error)
  • Number of timeouts reading the met tower data by height(read_timeout_count)
  • Maximum Wind Direction(wind_dir_max)
  • Relative humidity minimum(relh_min)
  • Std Dev of Dew Point Temperature(dew_pt_temp_sd)
  • Maximum Wind Speed(wind_spd_max)
  • lon(lon)
  • lat(lat)
  • Std Dev of Wind Speed(wind_spd_sd)
  • Std Dev of Air Temperature(temp_sd)
  • Internal Temperature out of range error(internal_temp_out_of_range_error)
  • Mean Relative Humidity(relh_mean)
  • Temperature maximum(temp_max)
  • Std Dev of Wind Direction(wind_dir_sd)
  • Dummy altitude for Zeb(alt)
  • Maximum Dew Point Temperature(dew_pt_temp_max)
  • Dew Point Temperature Hardware Error(dew_pt_hardware_error)
  • Mean Air Temperature or Hardware Error(temp_mean)
  • Wind Direction out of range error(win_dir_out_of_range_error)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • base time(base_time)
  • Air Temperature Hardware Error(temp_hardware_error)
  • Time offset of tweaks from base_time(time_offset)
  • PTB Serial Error(atmos_pressure_PTB_serial_error)
  • Barometric Pressure(atmos_pressure)
  • Read Timeout Error(atmos_pressure_read_timeout_error)
  • Air Temperature out of range error(temp_out_of_range_error)
  • Minimum Wind Speed(wind_spd_min)
  • Minimum Wind Direction(wind_dir_min)
  • Vapor Pressure out of range error(vap_pres_out_of_range_error)
  • Minimum Vapor Pressure(vap_pres_min)
  • Std Dev of Vapor Pressure(vap_pres_sd)
  • Relative humidity maximum(relh_max)
  • GPS raw data filename(filename)
  • Maximum Vapor Pressure(vap_pres_max)
  • Relative Humidity out of range error(relh_out_of_range_error)
  • Mean Vapor Pressure(vap_pres_mean)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Temperature minimum(temp_min)
  • Mean Wind Speed(wind_spd_mean)
  • Out of Range Error(atmos_pressure_out_of_range_error)
  • Std Dev of Relative Humidity or Hardware Error Code(relh_sd)
  • Internal Voltage out of range error(internal_voltage_out_of_range_error)

nsapwsC1.a0:
  • NWS code(present_weather_sensor_NWS_code)
  • lon(lon)
  • Ten Minute PW code \\(WMO SYNOP code\\)(ten_minute_PW_code)
  • One Minute PW code \\(WMO SYNOP code\\)(one_minute_PW_code)
  • Time offset of tweaks from base_time(time_offset)
  • Ten Minute PW code out of range error(ten_min_pw_code_out_of_range_error)
  • One Hour PW code \\(WMO SYNOP code\\)(one_hour_PW_code)
  • one Minute Visibility(one_minute_visibility)
  • Precipitation rate(precip_rate)
  • Ten Minute Visibility(ten_minute_visibility)
  • Cumulative Snow out of range error(cumul_snow_out_of_range_error)
  • PWS Precipitation Rate out of range error(precip_rate_out_of_range_error)
  • One Minute PW code out of range error(one_min_pw_code_out_of_range_error)
  • One Minute Visibility out of range error(one_minute_vis_out_of_range_error)
  • base time(base_time)
  • Cumulative Liquid Water Equivalent(cumul_liq_water_equiv)
  • Present Weather Sensor Serial Error(pws_serial_error)
  • Dummy altitude for Zeb(alt)
  • Liquid Water Equivalent out of range error(cumul_liq_water_equiv_out_of_range_err)
  • Present Weather Sensor Read Timeout Error(pws_read_timeout_error)
  • GPS raw data filename(filename)
  • Ten Minute Visibility out of range error(ten_minute_vis_out_of_range_error)
  • Cumulative Snow(cumulative_snow)
  • One Hour PW code out of range error(one_hour_pw_code_out_of_range_error)
  • lat(lat)

nsaorgC1.a1:
  • ORG Serial Error(precip_serial_error)
  • Time offset of tweaks from base_time(time_offset)
  • Daily Accumulation(precip_daily_accum)
  • base time(base_time)
  • ORG No Data Error(precip_no_data_error)
  • NWS code(precip_NWS_code)
  • GPS raw data filename(filename)
  • Dummy altitude for Zeb(alt)
  • ORG Read Timeout Error(precip_read_timeout_error)
  • Daily Accumulation out of range error(precip_out_of_range_error)
  • Precipitation rate(precip_rate)
  • lat(lat)
  • lon(lon)


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DQRID : D011119.2
Start DateStart TimeEnd DateEnd Time
10/09/2001230010/13/20012301
Subject:
NSA/METTWR/C1 - Met Tower Data Incorrect During Calibrations/Changeouts
DataStreams:nsamettwrC1.a1, nsamettwrC1.b1
Description:
Met Tower Data was incorrect during this period while sensor changeouts and calibrations 
were accomplished.
Measurements:nsamettwrC1.a1:
  • Minimum Dew Point Temperature(dew_pt_temp_min)
  • Wind Speed out of range error(win_spd_out_of_range_error)
  • Mean Dew Point Temperature(dew_pt_temp_mean)
  • Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error)
  • Maximum Wind Direction(wind_dir_max)
  • Relative humidity minimum(relh_min)
  • Std Dev of Dew Point Temperature(dew_pt_temp_sd)
  • Maximum Wind Speed(wind_spd_max)
  • Std Dev of Wind Speed(wind_spd_sd)
  • Std Dev of Air Temperature(temp_sd)
  • Mean Relative Humidity(relh_mean)
  • Temperature maximum(temp_max)
  • Std Dev of Wind Direction(wind_dir_sd)
  • Maximum Dew Point Temperature(dew_pt_temp_max)
  • Dew Point Temperature Hardware Error(dew_pt_hardware_error)
  • Mean Air Temperature or Hardware Error(temp_mean)
  • Wind Direction out of range error(win_dir_out_of_range_error)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • Air Temperature Hardware Error(temp_hardware_error)
  • Air Temperature out of range error(temp_out_of_range_error)
  • Minimum Wind Speed(wind_spd_min)
  • Minimum Wind Direction(wind_dir_min)
  • Vapor Pressure out of range error(vap_pres_out_of_range_error)
  • Minimum Vapor Pressure(vap_pres_min)
  • Std Dev of Vapor Pressure(vap_pres_sd)
  • Relative humidity maximum(relh_max)
  • Maximum Vapor Pressure(vap_pres_max)
  • Relative Humidity out of range error(relh_out_of_range_error)
  • Mean Vapor Pressure(vap_pres_mean)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Temperature minimum(temp_min)
  • Mean Wind Speed(wind_spd_mean)
  • Std Dev of Relative Humidity or Hardware Error Code(relh_sd)

nsamettwrC1.b1:
  • Relative Humidity out of range error(relh_out_of_range_error)
  • Mean Relative Humidity(relh_mean)
  • Air Temperature Hardware Error(temp_hardware_error)
  • Mean Dew Point Temperature(dew_pt_temp_mean)
  • Air Temperature out of range error(temp_out_of_range_error)
  • Std Dev of Vapor Pressure(vap_pres_sd)
  • Minimum Wind Direction(wind_dir_min)
  • Wind Direction out of range error(wind_dir_out_of_range_error)
  • Std Dev of Wind Direction(wind_dir_sd)
  • Maximum Wind Direction(wind_dir_max)
  • Maximum Wind Speed(wind_spd_max)
  • Relative humidity maximum(relh_max)
  • Minimum Vapor Pressure(vap_pres_min)
  • Std Dev of Air Temperature(temp_sd)
  • Temperature minimum(temp_min)
  • Std Dev of Relative Humidity or Hardware Error Code(relh_sd)
  • Mean Air Temperature or Hardware Error(temp_mean)
  • Mean Vapor Pressure(vap_pres_mean)
  • Std Dev of Dew Point Temperature(dew_pt_temp_sd)
  • Wind Speed out of range error(wind_spd_out_of_range_error)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Temperature maximum(temp_max)
  • Minimum Wind Speed(wind_spd_min)
  • Maximum Dew Point Temperature(dew_pt_temp_max)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • Vapor Pressure out of range error(vap_pres_out_of_range_error)
  • Std Dev of Wind Speed(wind_spd_sd)
  • Mean Wind Speed(wind_spd_mean)
  • Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error)
  • Dew Point Temperature Hardware Error(dew_pt_hardware_error)
  • Minimum Dew Point Temperature(dew_pt_temp_min)
  • Relative humidity minimum(relh_min)
  • Maximum Vapor Pressure(vap_pres_max)


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DQRID : D020402.2
Start DateStart TimeEnd DateEnd Time
04/01/2001000010/08/20012359
Subject:
NSA/METTWR/C1 - C1 SPURIOUS INFORMATION IN DATA HEADER
DataStreams:nsamettwrC1.b1
Description:
There is an attribute for read_timeout_count that should not be included.  
The affected prtion of the header is: read_timeout_count:details = '0 = no error, 1 = 
error'  
User should disregard this attribute information in the header.
Measurements:nsamettwrC1.b1:
  • Number of timeouts reading the met tower data by height(read_timeout_count)


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DQRID : D020402.3
Start DateStart TimeEnd DateEnd Time
05/25/2001000010/13/20012301
Subject:
NSA/METTWR/C1 - C1 WIND SPEED DATA QUESTIONABLE
DataStreams:nsamettwrC1.a1, nsamettwrC1.b1
Description:
The anemometers located at all 4 levels (2m, 10m, 20m, and 40m) are heated anemometers.  
The thermistors controlling the amount of power applied to the cups of the anemometers 
failed.  This caused too much power to be sent to the heating elements.  The cups bubbled 
and, in some cases, completely melted through.
Measurements:nsamettwrC1.a1:
  • Std Dev of Wind Speed(wind_spd_sd)
  • Mean Wind Speed(wind_spd_mean)
  • Minimum Wind Speed(wind_spd_min)
  • Maximum Wind Speed(wind_spd_max)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)

nsamettwrC1.b1:
  • Mean Wind Speed(wind_spd_mean)
  • Maximum Wind Speed(wind_spd_max)
  • Std Dev of Wind Speed(wind_spd_sd)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Minimum Wind Speed(wind_spd_min)
  • Wind Speed out of range error(wind_spd_out_of_range_error)


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DQRID : D020402.4
Start DateStart TimeEnd DateEnd Time
07/25/2001000010/13/20012301
Subject:
NSA/METTWR/C1 - C1 WIND DIRECTION DATA SUSPECT
DataStreams:nsamettwrC1.a1, nsamettwrC1.b1
Description:
The wind direction sensor at the 10m level and 20m level became frozen.  The senor at the 
10m level became frozen on July 25 2001.  The date that the 20m level became frozen is 
unknown but occurred after the 10m level became frozen.  Both sensors froze in such a way 
as to consistently report wind direction values out of the south.
Measurements:nsamettwrC1.a1:
  • Wind Speed out of range error(win_spd_out_of_range_error)
  • Std Dev of Wind Direction(wind_dir_sd)
  • Wind Direction out of range error(win_dir_out_of_range_error)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • Minimum Wind Direction(wind_dir_min)
  • Maximum Wind Direction(wind_dir_max)

nsamettwrC1.b1:
  • Wind Direction out of range error(wind_dir_out_of_range_error)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • Maximum Wind Direction(wind_dir_max)
  • Std Dev of Wind Direction(wind_dir_sd)
  • Minimum Wind Direction(wind_dir_min)


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DQRID : D020424.1
Start DateStart TimeEnd DateEnd Time
02/04/2002100602/04/20021022
02/11/2002210002/21/20021929
Subject:
NSA/METTWRC1 - METTWRCQ DATA REPORTED AS -9999
DataStreams:nsamettwrC1.a1, nsamettwrC1.b1, nsaorgC1.a1, nsaorgC1.b1, nsapwsC1.a1, nsapwsC1.b1
Description:
Due to local power outages caused by winter storms, the Bridgeview collection program 
became corrupted.  All tower data and associated instruments on the tower reported as -9999.
Measurements:nsamettwrC1.a1:
  • Minimum Dew Point Temperature(dew_pt_temp_min)
  • Mean Dew Point Temperature(dew_pt_temp_mean)
  • Std Dev of Dew Point Temperature(dew_pt_temp_sd)
  • Maximum Wind Speed(wind_spd_max)
  • Std Dev of Wind Speed(wind_spd_sd)
  • Internal Temperature out of range error(internal_temp_out_of_range_error)
  • Mean Relative Humidity(relh_mean)
  • Temperature maximum(temp_max)
  • Std Dev of Wind Direction(wind_dir_sd)
  • Mean Air Temperature or Hardware Error(temp_mean)
  • Dew Point Temperature Hardware Error(dew_pt_hardware_error)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • Serial Port Error(serial_port_error)
  • Barometric Pressure(atmos_pressure)
  • Read Timeout Error(atmos_pressure_read_timeout_error)
  • Minimum Wind Speed(wind_spd_min)
  • Minimum Wind Direction(wind_dir_min)
  • Minimum Vapor Pressure(vap_pres_min)
  • Std Dev of Vapor Pressure(vap_pres_sd)
  • Relative humidity maximum(relh_max)
  • Out of Range Error(atmos_pressure_out_of_range_error)
  • Std Dev of Relative Humidity or Hardware Error Code(relh_sd)
  • Wind Speed out of range error(win_spd_out_of_range_error)
  • Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error)
  • Maximum Wind Direction(wind_dir_max)
  • Relative humidity minimum(relh_min)
  • Std Dev of Air Temperature(temp_sd)
  • Maximum Dew Point Temperature(dew_pt_temp_max)
  • Wind Direction out of range error(win_dir_out_of_range_error)
  • Air Temperature Hardware Error(temp_hardware_error)
  • PTB Serial Error(atmos_pressure_PTB_serial_error)
  • Air Temperature out of range error(temp_out_of_range_error)
  • Vapor Pressure out of range error(vap_pres_out_of_range_error)
  • Maximum Vapor Pressure(vap_pres_max)
  • Relative Humidity out of range error(relh_out_of_range_error)
  • Mean Vapor Pressure(vap_pres_mean)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Temperature minimum(temp_min)
  • Mean Wind Speed(wind_spd_mean)
  • Internal Voltage out of range error(internal_voltage_out_of_range_error)

nsapwsC1.a1:
  • One Minute PW code out of range error(one_min_pw_code_out_of_range_error)
  • Ten Minute PW code out of range error(ten_min_pw_code_out_of_range_error)
  • One Minute PW code \\(WMO SYNOP code\\)(one_minute_PW_code)
  • NWS code(present_weather_sensor_NWS_code)
  • Cumulative Liquid Water Equivalent(cumul_liq_water_equiv)
  • Liquid Water Equivalent out of range error(cumul_liq_water_equiv_out_of_range_err)
  • Cumulative Snow(cumulative_snow)
  • PWS Precipitation Rate out of range error(precip_rate_out_of_range_error)
  • Present Weather Sensor Read Timeout Error(pws_read_timeout_error)
  • Ten Minute Visibility out of range error(ten_minute_vis_out_of_range_error)
  • One Hour PW code out of range error(one_hour_pw_code_out_of_range_error)
  • One Minute Visibility out of range error(one_minute_vis_out_of_range_error)
  • Present Weather Sensor Serial Error(pws_serial_error)
  • Precipitation rate(precip_rate)
  • one Minute Visibility(one_minute_visibility)
  • Ten Minute PW code \\(WMO SYNOP code\\)(ten_minute_PW_code)
  • One Hour PW code \\(WMO SYNOP code\\)(one_hour_PW_code)
  • Ten Minute Visibility(ten_minute_visibility)
  • Cumulative Snow out of range error(cumul_snow_out_of_range_error)

nsaorgC1.b1:
  • NWS code(precip_NWS_code)
  • Daily Accumulation(precip_daily_accum)
  • Precipitation rate(precip_rate)
  • Daily Accumulation out of range error(precip_out_of_range_error)
  • ORG Read Timeout Error(precip_read_timeout_error)
  • ORG Serial Error(precip_serial_error)
  • ORG No Data Error(precip_no_data_error)

nsamettwrC1.b1:
  • Internal Voltage out of range error(internal_voltage_out_of_range_error)
  • Mean Dew Point Temperature(dew_pt_temp_mean)
  • Relative humidity maximum(relh_max)
  • Std Dev of Air Temperature(temp_sd)
  • Std Dev of Relative Humidity or Hardware Error Code(relh_sd)
  • Mean Air Temperature or Hardware Error(temp_mean)
  • Mean Vapor Pressure(vap_pres_mean)
  • Std Dev of Dew Point Temperature(dew_pt_temp_sd)
  • PTB Serial Error(atmos_pressure_PTB_serial_error)
  • Wind Speed out of range error(wind_spd_out_of_range_error)
  • Temperature maximum(temp_max)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Minimum Wind Speed(wind_spd_min)
  • Internal Temperature out of range error(internal_temp_out_of_range_error)
  • Std Dev of Wind Speed(wind_spd_sd)
  • Mean Wind Speed(wind_spd_mean)
  • Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error)
  • Barometric Pressure(atmos_pressure)
  • Number of timeouts reading the met tower data by height(read_timeout_count)
  • Maximum Vapor Pressure(vap_pres_max)
  • Relative Humidity out of range error(relh_out_of_range_error)
  • Mean Relative Humidity(relh_mean)
  • Air Temperature Hardware Error(temp_hardware_error)
  • Minimum Wind Direction(wind_dir_min)
  • Std Dev of Vapor Pressure(vap_pres_sd)
  • Air Temperature out of range error(temp_out_of_range_error)
  • Wind Direction out of range error(wind_dir_out_of_range_error)
  • Read Timeout Error(atmos_pressure_read_timeout_error)
  • Maximum Wind Direction(wind_dir_max)
  • Std Dev of Wind Direction(wind_dir_sd)
  • Maximum Wind Speed(wind_spd_max)
  • Minimum Vapor Pressure(vap_pres_min)
  • Temperature minimum(temp_min)
  • Maximum Dew Point Temperature(dew_pt_temp_max)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • Vapor Pressure out of range error(vap_pres_out_of_range_error)
  • Out of Range Error(atmos_pressure_out_of_range_error)
  • Dew Point Temperature Hardware Error(dew_pt_hardware_error)
  • Minimum Dew Point Temperature(dew_pt_temp_min)
  • Relative humidity minimum(relh_min)

nsaorgC1.a1:
  • ORG Serial Error(precip_serial_error)
  • Daily Accumulation(precip_daily_accum)
  • NWS code(precip_NWS_code)
  • ORG No Data Error(precip_no_data_error)
  • Daily Accumulation out of range error(precip_out_of_range_error)
  • Precipitation rate(precip_rate)
  • ORG Read Timeout Error(precip_read_timeout_error)

nsapwsC1.b1:
  • Ten Minute Visibility out of range error(ten_minute_vis_out_of_range_error)
  • Present Weather Sensor Read Timeout Error(pws_read_timeout_error)
  • One Minute PW code \\(WMO SYNOP code\\)(one_minute_PW_code)
  • Cumulative Snow(cumulative_snow)
  • Precipitation rate(precip_rate)
  • Present Weather Sensor Serial Error(pws_serial_error)
  • Cumulative Snow out of range error(cumul_snow_out_of_range_error)
  • NWS code(present_weather_sensor_NWS_code)
  • Cumulative Liquid Water Equivalent(cumul_liq_water_equiv)
  • One Minute PW code out of range error(one_min_pw_code_out_of_range_error)
  • Ten Minute Visibility(ten_minute_visibility)
  • One Hour PW code \\(WMO SYNOP code\\)(one_hour_PW_code)
  • One Minute Visibility out of range error(one_minute_vis_out_of_range_error)
  • Ten Minute PW code out of range error(ten_min_pw_code_out_of_range_error)
  • Liquid Water Equivalent out of range error(cumul_liq_water_equiv_out_of_range_err)
  • Ten Minute PW code \\(WMO SYNOP code\\)(ten_minute_PW_code)
  • PWS Precipitation Rate out of range error(precip_rate_out_of_range_error)
  • one Minute Visibility(one_minute_visibility)
  • One Hour PW code out of range error(one_hour_pw_code_out_of_range_error)


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DQRID : D020424.2
Start DateStart TimeEnd DateEnd Time
02/04/2002102302/11/20022059
02/21/2002193002/21/20022002
Subject:
NSA/METTWRC1 - METTWRC1 NO DATA COLLECTED FROM TOWER
DataStreams:nsamettwrC1.a1, nsamettwrC1.b1, nsaorgC1.a1, nsaorgC1.b1, nsapwsC1.a1, nsapwsC1.b1
Description:
Power outage caused fatal errors in the Bridgeview collection program.  No data was 
ingested from the tower and sensors located on the tower.
Measurements:nsamettwrC1.a1:
  • Minimum Dew Point Temperature(dew_pt_temp_min)
  • Mean Dew Point Temperature(dew_pt_temp_mean)
  • Std Dev of Dew Point Temperature(dew_pt_temp_sd)
  • Maximum Wind Speed(wind_spd_max)
  • Std Dev of Wind Speed(wind_spd_sd)
  • Internal Temperature out of range error(internal_temp_out_of_range_error)
  • Mean Relative Humidity(relh_mean)
  • Temperature maximum(temp_max)
  • Std Dev of Wind Direction(wind_dir_sd)
  • Mean Air Temperature or Hardware Error(temp_mean)
  • Dew Point Temperature Hardware Error(dew_pt_hardware_error)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • Serial Port Error(serial_port_error)
  • Barometric Pressure(atmos_pressure)
  • Read Timeout Error(atmos_pressure_read_timeout_error)
  • Minimum Wind Speed(wind_spd_min)
  • Minimum Wind Direction(wind_dir_min)
  • Minimum Vapor Pressure(vap_pres_min)
  • Std Dev of Vapor Pressure(vap_pres_sd)
  • Relative humidity maximum(relh_max)
  • Out of Range Error(atmos_pressure_out_of_range_error)
  • Std Dev of Relative Humidity or Hardware Error Code(relh_sd)
  • Wind Speed out of range error(win_spd_out_of_range_error)
  • Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error)
  • Maximum Wind Direction(wind_dir_max)
  • Relative humidity minimum(relh_min)
  • Std Dev of Air Temperature(temp_sd)
  • Maximum Dew Point Temperature(dew_pt_temp_max)
  • Wind Direction out of range error(win_dir_out_of_range_error)
  • Air Temperature Hardware Error(temp_hardware_error)
  • PTB Serial Error(atmos_pressure_PTB_serial_error)
  • Air Temperature out of range error(temp_out_of_range_error)
  • Vapor Pressure out of range error(vap_pres_out_of_range_error)
  • Maximum Vapor Pressure(vap_pres_max)
  • Relative Humidity out of range error(relh_out_of_range_error)
  • Mean Vapor Pressure(vap_pres_mean)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Temperature minimum(temp_min)
  • Mean Wind Speed(wind_spd_mean)
  • Internal Voltage out of range error(internal_voltage_out_of_range_error)

nsapwsC1.a1:
  • One Minute PW code out of range error(one_min_pw_code_out_of_range_error)
  • Ten Minute PW code out of range error(ten_min_pw_code_out_of_range_error)
  • One Minute PW code \\(WMO SYNOP code\\)(one_minute_PW_code)
  • NWS code(present_weather_sensor_NWS_code)
  • Cumulative Liquid Water Equivalent(cumul_liq_water_equiv)
  • Liquid Water Equivalent out of range error(cumul_liq_water_equiv_out_of_range_err)
  • Cumulative Snow(cumulative_snow)
  • PWS Precipitation Rate out of range error(precip_rate_out_of_range_error)
  • Present Weather Sensor Read Timeout Error(pws_read_timeout_error)
  • Ten Minute Visibility out of range error(ten_minute_vis_out_of_range_error)
  • One Hour PW code out of range error(one_hour_pw_code_out_of_range_error)
  • One Minute Visibility out of range error(one_minute_vis_out_of_range_error)
  • Present Weather Sensor Serial Error(pws_serial_error)
  • Precipitation rate(precip_rate)
  • one Minute Visibility(one_minute_visibility)
  • Ten Minute PW code \\(WMO SYNOP code\\)(ten_minute_PW_code)
  • One Hour PW code \\(WMO SYNOP code\\)(one_hour_PW_code)
  • Ten Minute Visibility(ten_minute_visibility)
  • Cumulative Snow out of range error(cumul_snow_out_of_range_error)

nsaorgC1.b1:
  • NWS code(precip_NWS_code)
  • Daily Accumulation(precip_daily_accum)
  • Precipitation rate(precip_rate)
  • Daily Accumulation out of range error(precip_out_of_range_error)
  • ORG Read Timeout Error(precip_read_timeout_error)
  • ORG Serial Error(precip_serial_error)
  • ORG No Data Error(precip_no_data_error)

nsamettwrC1.b1:
  • Internal Voltage out of range error(internal_voltage_out_of_range_error)
  • Mean Dew Point Temperature(dew_pt_temp_mean)
  • Relative humidity maximum(relh_max)
  • Std Dev of Air Temperature(temp_sd)
  • Std Dev of Relative Humidity or Hardware Error Code(relh_sd)
  • Mean Air Temperature or Hardware Error(temp_mean)
  • Mean Vapor Pressure(vap_pres_mean)
  • Std Dev of Dew Point Temperature(dew_pt_temp_sd)
  • PTB Serial Error(atmos_pressure_PTB_serial_error)
  • Wind Speed out of range error(wind_spd_out_of_range_error)
  • Temperature maximum(temp_max)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Minimum Wind Speed(wind_spd_min)
  • Internal Temperature out of range error(internal_temp_out_of_range_error)
  • Std Dev of Wind Speed(wind_spd_sd)
  • Mean Wind Speed(wind_spd_mean)
  • Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error)
  • Barometric Pressure(atmos_pressure)
  • Number of timeouts reading the met tower data by height(read_timeout_count)
  • Maximum Vapor Pressure(vap_pres_max)
  • Relative Humidity out of range error(relh_out_of_range_error)
  • Mean Relative Humidity(relh_mean)
  • Air Temperature Hardware Error(temp_hardware_error)
  • Minimum Wind Direction(wind_dir_min)
  • Std Dev of Vapor Pressure(vap_pres_sd)
  • Air Temperature out of range error(temp_out_of_range_error)
  • Wind Direction out of range error(wind_dir_out_of_range_error)
  • Read Timeout Error(atmos_pressure_read_timeout_error)
  • Maximum Wind Direction(wind_dir_max)
  • Std Dev of Wind Direction(wind_dir_sd)
  • Maximum Wind Speed(wind_spd_max)
  • Minimum Vapor Pressure(vap_pres_min)
  • Temperature minimum(temp_min)
  • Maximum Dew Point Temperature(dew_pt_temp_max)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • Vapor Pressure out of range error(vap_pres_out_of_range_error)
  • Out of Range Error(atmos_pressure_out_of_range_error)
  • Dew Point Temperature Hardware Error(dew_pt_hardware_error)
  • Minimum Dew Point Temperature(dew_pt_temp_min)
  • Relative humidity minimum(relh_min)

nsaorgC1.a1:
  • ORG Serial Error(precip_serial_error)
  • Daily Accumulation(precip_daily_accum)
  • NWS code(precip_NWS_code)
  • ORG No Data Error(precip_no_data_error)
  • Daily Accumulation out of range error(precip_out_of_range_error)
  • Precipitation rate(precip_rate)
  • ORG Read Timeout Error(precip_read_timeout_error)

nsapwsC1.b1:
  • Ten Minute Visibility out of range error(ten_minute_vis_out_of_range_error)
  • Present Weather Sensor Read Timeout Error(pws_read_timeout_error)
  • One Minute PW code \\(WMO SYNOP code\\)(one_minute_PW_code)
  • Cumulative Snow(cumulative_snow)
  • Precipitation rate(precip_rate)
  • Present Weather Sensor Serial Error(pws_serial_error)
  • Cumulative Snow out of range error(cumul_snow_out_of_range_error)
  • NWS code(present_weather_sensor_NWS_code)
  • Cumulative Liquid Water Equivalent(cumul_liq_water_equiv)
  • One Minute PW code out of range error(one_min_pw_code_out_of_range_error)
  • Ten Minute Visibility(ten_minute_visibility)
  • One Hour PW code \\(WMO SYNOP code\\)(one_hour_PW_code)
  • One Minute Visibility out of range error(one_minute_vis_out_of_range_error)
  • Ten Minute PW code out of range error(ten_min_pw_code_out_of_range_error)
  • Liquid Water Equivalent out of range error(cumul_liq_water_equiv_out_of_range_err)
  • Ten Minute PW code \\(WMO SYNOP code\\)(ten_minute_PW_code)
  • PWS Precipitation Rate out of range error(precip_rate_out_of_range_error)
  • one Minute Visibility(one_minute_visibility)
  • One Hour PW code out of range error(one_hour_pw_code_out_of_range_error)


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DQRID : D020610.2
Start DateStart TimeEnd DateEnd Time
05/28/2002153009/18/20021915
Subject:
NSA/METTWR/C1 - Wind Speed data intermittently bad
DataStreams:nsamettwrC1.a1, nsamettwrC1.b1
Description:
Wind speed at 20m level icing up and wind speed values are intermittently
0 m/s, lower than other sensors and good at times.  Heater failure on sensor
that prevents icing.
Measurements:nsamettwrC1.a1:
  • Std Dev of Wind Speed(wind_spd_sd)
  • Mean Wind Speed(wind_spd_mean)
  • Minimum Wind Speed(wind_spd_min)
  • Maximum Wind Speed(wind_spd_max)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)

nsamettwrC1.b1:
  • Mean Wind Speed(wind_spd_mean)
  • Maximum Wind Speed(wind_spd_max)
  • Std Dev of Wind Speed(wind_spd_sd)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Minimum Wind Speed(wind_spd_min)
  • Wind Speed out of range error(wind_spd_out_of_range_error)


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DQRID : D020611.1
Start DateStart TimeEnd DateEnd Time
06/05/2002122706/06/20022100
Subject:
NSA/METTIPTWR/C2 - Data missing due to Power Failure
DataStreams:nsametC2.00, nsamettiptwrC2.a1, nsamettiptwrC2.b1
Description:
No data were collected due to a power failure.
Measurements:nsametC2.00:
  • null(Raw data stream - documentation not supported)

nsamettiptwrC2.b1:
  • Vapor Pressure out of range error(vap_pres_out_of_range_error)
  • Std Dev of Wind Direction(wind_dir_sd)
  • Number of timeouts reading the met tower data by height(read_timeout_count)
  • Minimum Air Temperature Difference(temp_min_diff)
  • Std Dev of Dew Point Temperature(dew_pt_temp_sd)
  • Std Dev of Air Temperature Difference(temp_sd_diff)
  • Mean Dew Point Temperature(dew_pt_temp_mean)
  • Air Temperature Hardware Error(temp_hardware_error)
  • Relative Humidity out of range error(relh_out_of_range_error)
  • Internal Temperature out of range error(internal_temp_out_of_range_error)
  • Relative humidity maximum(relh_max)
  • Maximum Wind Direction(wind_dir_max)
  • Barometric Pressure(atmos_pressure)
  • Mean Air Temperature or Hardware Error(temp_mean)
  • Minimum Vapor Pressure(vap_pres_min)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Wind Direction out of range error(wind_dir_out_of_range_error)
  • PTB Serial Error(atmos_pressure_PTB_serial_error)
  • Temperature maximum(temp_max)
  • Mean Vapor Pressure(vap_pres_mean)
  • Mean Air Temperature Difference(temp_mean_diff)
  • Maximum Vapor Pressure(vap_pres_max)
  • Minimum Wind Direction(wind_dir_min)
  • Std Dev of Vapor Pressure(vap_pres_sd)
  • Std Dev of Air Temperature(temp_sd)
  • Maximum Wind Speed(wind_spd_max)
  • Out of Range Error(atmos_pressure_out_of_range_error)
  • lon(lon)
  • Relative humidity minimum(relh_min)
  • Air Temperature out of range error(temp_out_of_range_error)
  • Std Dev of Wind Speed(wind_spd_sd)
  • Read Timeout Error(atmos_pressure_read_timeout_error)
  • Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error)
  • Wind Speed out of range error(wind_spd_out_of_range_error)
  • Dew Point Temperature Hardware Error(dew_pt_hardware_error)
  • Dummy altitude for Zeb(alt)
  • Mean Wind Speed(wind_spd_mean)
  • Maximum Dew Point Temperature(dew_pt_temp_max)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • Minimum Wind Speed(wind_spd_min)
  • base time(base_time)
  • Time offset of tweaks from base_time(time_offset)
  • Minimum Dew Point Temperature(dew_pt_temp_min)
  • Internal Voltage out of range error(internal_voltage_out_of_range)
  • Std Dev of Relative Humidity or Hardware Error Code(relh_sd)
  • Temperature minimum(temp_min)
  • Mean Relative Humidity(relh_mean)
  • Maximum Air Temperature Difference(temp_max_diff)
  • lat(lat)

nsamettiptwrC2.a1:
  • Relative Humidity out of range error(relh_out_of_range_error)
  • Internal Temperature out of range error(internal_temp_out_of_range_error)
  • Maximum Air Temperature Difference(temp_max_diff)
  • Vapor Pressure out of range error(vap_pres_out_of_range_error)
  • Std Dev of Relative Humidity or Hardware Error Code(relh_sd)
  • Minimum Vapor Pressure(vap_pres_min)
  • Maximum Vapor Pressure(vap_pres_max)
  • Maximum Wind Speed(wind_spd_max)
  • Internal Voltage out of range error(internal_voltage_out_of_range)
  • Temperature minimum(temp_min)
  • Wind Speed out of range error(wind_spd_out_of_range_error)
  • Barometric Pressure(atmos_pressure)
  • Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error)
  • PTB Serial Error(atmos_pressure_PTB_serial_error)
  • Minimum Wind Speed(wind_spd_min)
  • Dew Point Temperature Hardware Error(dew_pt_hardware_error)
  • Time offset of tweaks from base_time(time_offset)
  • Air Temperature out of range error(temp_out_of_range_error)
  • base time(base_time)
  • Std Dev of Dew Point Temperature(dew_pt_temp_sd)
  • Mean Dew Point Temperature(dew_pt_temp_mean)
  • Mean Vapor Pressure(vap_pres_mean)
  • Relative humidity maximum(relh_max)
  • Std Dev of Vapor Pressure(vap_pres_sd)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Out of Range Error(atmos_pressure_out_of_range_error)
  • Number of timeouts reading the met tower data by height(read_timeout_count)
  • Wind Direction out of range error(wind_dir_out_of_range_error)
  • Mean Relative Humidity(relh_mean)
  • Minimum Air Temperature Difference(temp_min_diff)
  • Temperature maximum(temp_max)
  • Std Dev of Air Temperature(temp_sd)
  • Mean Wind Speed(wind_spd_mean)
  • Read Timeout Error(atmos_pressure_read_timeout_error)
  • lat(lat)
  • Std Dev of Wind Speed(wind_spd_sd)
  • Maximum Wind Direction(wind_dir_max)
  • Std Dev of Wind Direction(wind_dir_sd)
  • Std Dev of Air Temperature Difference(temp_sd_diff)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • Minimum Wind Direction(wind_dir_min)
  • Relative humidity minimum(relh_min)
  • Mean Air Temperature Difference(temp_mean_diff)
  • Maximum Dew Point Temperature(dew_pt_temp_max)
  • lon(lon)
  • Mean Air Temperature or Hardware Error(temp_mean)
  • Dummy altitude for Zeb(alt)
  • Air Temperature Hardware Error(temp_hardware_error)
  • Minimum Dew Point Temperature(dew_pt_temp_min)


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DQRID : D021205.1
Start DateStart TimeEnd DateEnd Time
09/22/2002002911/21/20021935
Subject:
NSA/BMET/C2 - NSA/METTIPTOWER/C2 - C2 MET DATA MISSING
DataStreams:nsamettiptwrC2.a1, nsamettiptwrC2.b1
Description:
Due to unknown wiring differences and pin changes by Vaisala to their Wind Speed and 
Direction sensors, a power feedback into the QLI data collector occurred.  This caused an 
overload which shut the QLI data collector down.  Once trouble shooting pinpointed the power 
feedback, wiring diagrams were created and the differences were found.  Wiring was 
changed to prevent and remove the power feedback.
Measurements:nsamettiptwrC2.b1:
  • Relative humidity minimum(relh_min)
  • Vapor Pressure out of range error(vap_pres_out_of_range_error)
  • Air Temperature out of range error(temp_out_of_range_error)
  • Std Dev of Wind Direction(wind_dir_sd)
  • Number of timeouts reading the met tower data by height(read_timeout_count)
  • Std Dev of Wind Speed(wind_spd_sd)
  • Minimum Air Temperature Difference(temp_min_diff)
  • Std Dev of Dew Point Temperature(dew_pt_temp_sd)
  • Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error)
  • Std Dev of Air Temperature Difference(temp_sd_diff)
  • Wind Speed out of range error(wind_spd_out_of_range_error)
  • Dew Point Temperature Hardware Error(dew_pt_hardware_error)
  • Mean Wind Speed(wind_spd_mean)
  • Mean Dew Point Temperature(dew_pt_temp_mean)
  • Air Temperature Hardware Error(temp_hardware_error)
  • Maximum Dew Point Temperature(dew_pt_temp_max)
  • Relative Humidity out of range error(relh_out_of_range_error)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • Internal Temperature out of range error(internal_temp_out_of_range_error)
  • Relative humidity maximum(relh_max)
  • Maximum Wind Direction(wind_dir_max)
  • Minimum Wind Speed(wind_spd_min)
  • Mean Air Temperature or Hardware Error(temp_mean)
  • Minimum Vapor Pressure(vap_pres_min)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Wind Direction out of range error(wind_dir_out_of_range_error)
  • Minimum Dew Point Temperature(dew_pt_temp_min)
  • Temperature maximum(temp_max)
  • Mean Vapor Pressure(vap_pres_mean)
  • Mean Air Temperature Difference(temp_mean_diff)
  • Internal Voltage out of range error(internal_voltage_out_of_range)
  • Maximum Vapor Pressure(vap_pres_max)
  • Std Dev of Relative Humidity or Hardware Error Code(relh_sd)
  • Temperature minimum(temp_min)
  • Mean Relative Humidity(relh_mean)
  • Maximum Air Temperature Difference(temp_max_diff)
  • Minimum Wind Direction(wind_dir_min)
  • Std Dev of Vapor Pressure(vap_pres_sd)
  • Std Dev of Air Temperature(temp_sd)
  • Maximum Wind Speed(wind_spd_max)

nsamettiptwrC2.a1:
  • Mean Relative Humidity(relh_mean)
  • Relative Humidity out of range error(relh_out_of_range_error)
  • Internal Temperature out of range error(internal_temp_out_of_range_error)
  • Maximum Air Temperature Difference(temp_max_diff)
  • Minimum Air Temperature Difference(temp_min_diff)
  • Vapor Pressure out of range error(vap_pres_out_of_range_error)
  • Std Dev of Relative Humidity or Hardware Error Code(relh_sd)
  • Minimum Vapor Pressure(vap_pres_min)
  • Maximum Vapor Pressure(vap_pres_max)
  • Internal Voltage out of range error(internal_voltage_out_of_range)
  • Maximum Wind Speed(wind_spd_max)
  • Temperature maximum(temp_max)
  • Temperature minimum(temp_min)
  • Wind Speed out of range error(wind_spd_out_of_range_error)
  • Std Dev of Air Temperature(temp_sd)
  • Mean Wind Speed(wind_spd_mean)
  • Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error)
  • Std Dev of Wind Speed(wind_spd_sd)
  • Maximum Wind Direction(wind_dir_max)
  • Minimum Wind Speed(wind_spd_min)
  • Dew Point Temperature Hardware Error(dew_pt_hardware_error)
  • Std Dev of Wind Direction(wind_dir_sd)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • Std Dev of Air Temperature Difference(temp_sd_diff)
  • Minimum Wind Direction(wind_dir_min)
  • Relative humidity minimum(relh_min)
  • Air Temperature out of range error(temp_out_of_range_error)
  • Mean Air Temperature Difference(temp_mean_diff)
  • Maximum Dew Point Temperature(dew_pt_temp_max)
  • Std Dev of Dew Point Temperature(dew_pt_temp_sd)
  • Mean Air Temperature or Hardware Error(temp_mean)
  • Mean Dew Point Temperature(dew_pt_temp_mean)
  • Mean Vapor Pressure(vap_pres_mean)
  • Relative humidity maximum(relh_max)
  • Std Dev of Vapor Pressure(vap_pres_sd)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Air Temperature Hardware Error(temp_hardware_error)
  • Number of timeouts reading the met tower data by height(read_timeout_count)
  • Minimum Dew Point Temperature(dew_pt_temp_min)
  • Wind Direction out of range error(wind_dir_out_of_range_error)


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DQRID : D030411.4
Start DateStart TimeEnd DateEnd Time
11/25/2002143003/26/20032229
Subject:
NSA/C2 - Missing met, pws, snodep data due to comm error
DataStreams:nsamettiptwrC2.a1, nsamettiptwrC2.b1, nsapwsC2.a1, nsapwsC2.b1, nsasnodepC2.a1
Description:
An error in the communication sub-routine
of the Bridgeview collection software occurred
resulting in data loss from the Snow Depth
sensor, Present Weather Sensor and the 
Barometer.
Measurements:nsasnodepC2.a1:
  • Snow Depth internal QC number(snow_depth_internal_QC)
  • SR50 Serial Error(snow_depth_serial_error)
  • Out of Range Error(snow_depth_out_of_range_error)
  • Read Timeout Error(snow_depth_read_timeout_error)
  • Snow Depth(snow_depth)

nsapwsC2.a1:
  • Cumulative Snow(cumulative_snow)
  • Cumulative Snow out of range error(cumul_snow_out_of_range_error)
  • One Minute PW code out of range error(one_min_pw_code_out_of_range_error)
  • one Minute Visibility(one_minute_visibility)
  • One Hour PW code out of range error(one_hour_pw_code_out_of_range_error)
  • PWS Precipitation Rate out of range error(precip_rate_out_of_range_error)
  • One Minute Visibility out of range error(one_minute_vis_out_of_range_error)
  • Precipitation rate(precip_rate)
  • NWS code(present_weather_sensor_NWS_code)
  • Present Weather Sensor Serial Error(pws_serial_error)
  • Cumulative Liquid Water Equivalent(cumul_liq_water_equiv)
  • Ten Minute PW code out of range error(ten_min_pw_code_out_of_range_error)
  • One Hour PW code \\(WMO SYNOP code\\)(one_hour_PW_code)
  • Liquid Water Equivalent out of range error(cumul_liq_water_equiv_out_of_range_err)
  • Ten Minute Visibility out of range error(ten_minute_vis_out_of_range_error)
  • Ten Minute PW code \\(WMO SYNOP code\\)(ten_minute_PW_code)
  • One Minute PW code \\(WMO SYNOP code\\)(one_minute_PW_code)
  • Ten Minute Visibility(ten_minute_visibility)
  • Present Weather Sensor Read Timeout Error(pws_read_timeout_error)

nsamettiptwrC2.b1:
  • Read Timeout Error(atmos_pressure_read_timeout_error)
  • Barometric Pressure(atmos_pressure)
  • PTB Serial Error(atmos_pressure_PTB_serial_error)
  • Out of Range Error(atmos_pressure_out_of_range_error)

nsamettiptwrC2.a1:
  • Barometric Pressure(atmos_pressure)
  • Read Timeout Error(atmos_pressure_read_timeout_error)
  • PTB Serial Error(atmos_pressure_PTB_serial_error)
  • Out of Range Error(atmos_pressure_out_of_range_error)

nsapwsC2.b1:
  • One Minute Visibility out of range error(one_minute_vis_out_of_range_error)
  • One Minute PW code \\(WMO SYNOP code\\)(one_minute_PW_code)
  • One Hour PW code out of range error(one_hour_pw_code_out_of_range_error)
  • Cumulative Snow out of range error(cumul_snow_out_of_range_error)
  • Ten Minute Visibility(ten_minute_visibility)
  • one Minute Visibility(one_minute_visibility)
  • Ten Minute PW code out of range error(ten_min_pw_code_out_of_range_error)
  • Present Weather Sensor Read Timeout Error(pws_read_timeout_error)
  • Liquid Water Equivalent out of range error(cumul_liq_water_equiv_out_of_range_err)
  • base time(base_time)
  • Cumulative Liquid Water Equivalent(cumul_liq_water_equiv)
  • Cumulative Snow(cumulative_snow)
  • Present Weather Sensor Serial Error(pws_serial_error)
  • One Minute PW code out of range error(one_min_pw_code_out_of_range_error)
  • NWS code(present_weather_sensor_NWS_code)
  • Ten Minute Visibility out of range error(ten_minute_vis_out_of_range_error)
  • Ten Minute PW code \\(WMO SYNOP code\\)(ten_minute_PW_code)
  • Precipitation rate(precip_rate)
  • One Hour PW code \\(WMO SYNOP code\\)(one_hour_PW_code)
  • PWS Precipitation Rate out of range error(precip_rate_out_of_range_error)


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DQRID : D030528.5
Start DateStart TimeEnd DateEnd Time
05/21/2003050105/28/20031659
Subject:
NSA/METTWR/C1  -  C1/METTWR PRESSURE DATA MISSING AND INCORRECT
DataStreams:nsamettwrC1.a1, nsamettwrC1.b1
Description:
Starting at 0501 UTC on 05/21, pressure readings frequently are out of tolerance.  The 
read timeout value had changed from 250 ms to 150 ms.  Changed the read time out back to 250 
ms.  Unknown as to how read timeout values changed.
Measurements:nsamettwrC1.a1:
  • Barometric Pressure(atmos_pressure)

nsamettwrC1.b1:
  • Barometric Pressure(atmos_pressure)


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DQRID : D040722.2
Start DateStart TimeEnd DateEnd Time
11/01/2003000004/23/20041858
Subject:
NSA/METTWR/C1 - Chilled Mirror transmit logic board chipset unsuited for Arctic 
temperatures
DataStreams:nsamettwr4hC1.b1
Description:
Data missing due to problems with manufacturer's transmit logic board chipset.  They were 
generic chips not rated for Arctic temperatures.
Measurements:nsamettwr4hC1.b1:
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Dew Point(CMHDP)
  • Chilled Mirror Temperature(CMHTemp)
  • Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)


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DQRID : D040722.3
Start DateStart TimeEnd DateEnd Time
11/06/2003171907/14/20041500
Subject:
NSA/METTWR/C2 - Chilled Mirror grounding and timing issues
DataStreams:nsamettwr2hC2.b1
Description:
From beginning of data stream, the chilled mirror data was intermittent at best.  Problems 
with grounding and timing issues between logging instruments caused data to be incorrect 
and at times missing.
Measurements:nsamettwr2hC2.b1:
  • Chilled Mirror Temperature(CMHTemp)
  • Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)
  • Chilled Mirror Calculated Vapor Pressure(VPCMH)
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Dew Point(CMHDP)


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DQRID : D040728.1
Start DateStart TimeEnd DateEnd Time
07/21/2004150008/03/20042300
Subject:
NSA/METTWR/C1 - CMH Dew Point and RH data Incorrect
DataStreams:nsamettwr4hC1.b1
Description:
The Chilled Mirror Dew Point reported negative dew point values.  This caused the RH to be 
much lower than reality also.  Compared to the 2m level the RH and dew point from the 
CMH are incorrect.  Mirror was dirty, it was removed, cleaned and recalibrated.
Measurements:nsamettwr4hC1.b1:
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Dew Point(CMHDP)


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DQRID : D041011.2
Start DateStart TimeEnd DateEnd Time
07/19/2004150009/08/20042321
Subject:
NSA/METTWR/C1 - 20m Temperature/RH Sensor Failing
DataStreams:nsamettwr4hC1.b1
Description:
The 20m temperature and RH sensor began reading high on 20040719.
Aspirator fan failure caused a portion of the high reading.  New fan
failed to correct for all errors.  Sensor replaced on 20040908 with
recently calibrated sensor.
Measurements:nsamettwr4hC1.b1:
  • Standard Deviation of 20m Calculated Dew Point(DP20M_STD)
  • Standard Deviation of 20m Calculated Vapor Pressure(VP20M_STD)
  • 20m Average Temperature(T20M_AVG)
  • Standard Deviation of 20m Relative Humidity(RH20M_STD)
  • 20m Average Relative Humidity(RH20M_AVG)
  • 20m Average Calculated Vapor Pressure(VP20M_AVG)
  • 20m Average Calculated Dew Point(DP20M_AVG)
  • Standard Deviation of 20m Temperature(T20M_STD)


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DQRID : D041101.1
Start DateStart TimeEnd DateEnd Time
10/23/2004024511/02/20042325
Subject:
NSA/METTWR/C1 - Instrument problem, Frosting/Condensation
DataStreams:nsamettwr4hC1.b1
Description:
The 2m T & RH values were not in very good agreement with the CMH data or the other tower 
levels.  A failed aspirator fan caused the readings to be incorrect.
Measurements:nsamettwr4hC1.b1:
  • 2m Average Calculated Vapor Pressure(VP2M_AVG)
  • Standard Deviation of 2m Calculated Dew Point(DP2M_STD)
  • Standard Deviation of 2m Relative Humidity(RH2M_STD)
  • 2m Average Relative Humidity(RH2M_AVG)
  • Standard Deviation of 2m Calculated Vapor Pressure(VP2M_STD)
  • 2m Average Temperature(T2M_AVG)
  • Standard Deviation of 2m Temperature(T2M_STD)
  • 2m Average Calculated Dew Point(DP2M_AVG)


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DQRID : D041112.1
Start DateStart TimeEnd DateEnd Time
11/11/2004201711/12/20042246
Subject:
NSA/METTWR/C2 - Instrument problem
DataStreams:nsamettwr2hC2.b1
Description:
CMH and PWS stopped reporting.  Communication cable found to be broken.
Measurements:nsamettwr2hC2.b1:
  • Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)
  • Chilled Mirror Calculated Vapor Pressure(VPCMH)
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Dew Point(CMHDP)
  • 10 minute Average Visibility(AvgVis10m)
  • Cumulative Water Sum(CumH2O)
  • Instant Present Weather Code(InstPWCod)
  • 15 minute Present Weather Code(PWcod15mi)
  • 1 minute Average Visibility(AvgVis1mi)
  • Chilled Mirror Temperature(CMHTemp)
  • 1 hour Present Weather Code(PWCod1hr)
  • Cumulative Snow Sum(CumSnow)
  • Precipitation Rate(PCPRate)
  • Present Weather Sensor Alarm(PWSAlarm)


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DQRID : D041214.1
Start DateStart TimeEnd DateEnd Time
12/13/2004200204/26/20051902
Subject:
NSA/METTWR/C1 - All 10m level Data Missing
DataStreams:nsamettwr4hC1.b1
Description:
After prolonged power outage and many power spikes during the outage all data from the 10m 
level are missing.  Blown fuse on the power supply was replaced once the temperatures 
warmed enough to allow the lowering of the tower carriages.
Measurements:nsamettwr4hC1.b1:
  • 10m Average Calculated Dew Point(DP10M_AVG)
  • 10m Average QLI Reference Temperature(RefT10m_AVG)
  • Standard Deviation of 10m Calculated Vapor Pressure(VP10M_STD)
  • 10m Average Relative Humidity(RH10M_AVG)
  • 10m Vector Averaged Wind Speed(WS10M_U_WVT)
  • 10m Average Calculated Vapor Pressure(VP10M_AVG)
  • 10m Average QLI Input Voltage(Volt10M_AVG)
  • Standard Deviation of 10m Vector Averaged Wind Direction(WD10M_SDU_WVT)
  • 10m Average Temperature(T10M_AVG)
  • Standard Deviation of 10m Relative Humidity(RH10M_STD)
  • 10m Arithmetic Mean Wind Speed(WS10M_S_WVT)
  • 10m Vector Averaged Wind Direction(WD10M_DU_WVT)
  • Standard Deviation of 10m Calculated Dew Point(DP10M_STD)
  • Standard Deviation of 10m Temperature(T10M_STD)


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DQRID : D050124.2
Start DateStart TimeEnd DateEnd Time
01/10/2005221301/20/20052100
Subject:
NSA/METTWR/C1 - CMH data intermittently poor
DataStreams:nsamettwr4hC1.b1
Description:
CMH aspirator fan intermittently failed causing higher than actual 
             temperature and dew point readings.
Measurements:nsamettwr4hC1.b1:
  • Chilled Mirror Calculated Vapor Pressure(VPCMH)
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Dew Point(CMHDP)
  • Chilled Mirror Temperature(CMHTemp)
  • Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)


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DQRID : D050527.2
Start DateStart TimeEnd DateEnd Time
10/31/2003000005/26/20051014
Subject:
NSA/METTWR/C1 - Incorrect Maximum for Precip Values
DataStreams:nsamettwr4hC1.b1
Description:
The max values for cumulative rain sum of 99 mm and the rain rate of 999 mm/hr are 
incorrect.  In communication with the manufacturer it has been found that the manual was in 
error.  The actual max values of the cumulative rain sum is 99.99 mm and the rain rate is 
999.99 mm/hr.
Measurements:nsamettwr4hC1.b1:
  • Precipitation Rate(PcpRate)
  • Cumulative Water Sum(CumH2O)


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DQRID : D050527.3
Start DateStart TimeEnd DateEnd Time
11/06/2003000005/26/20051014
Subject:
NSA/METTWR/C2 - Incorrect Maximum for Precip Values
DataStreams:nsamettwr2hC2.b1
Description:
The max values for cumulative rain sum of 99 mm and the rain rate of 999 mm/hr are 
incorrect.  In communication with the manufacturer it has been found that the manual was in 
error.  The actual max values of the cumulative rain sum is 99.99 mm and the rain rate is 
999.99 mm/hr.
Measurements:nsamettwr2hC2.b1:
  • Precipitation Rate(PCPRate)
  • Cumulative Water Sum(CumH2O)


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DQRID : D050727.1
Start DateStart TimeEnd DateEnd Time
05/28/2005063007/19/20051934
Subject:
NSA/METTWR/C1 - CMH mirror dirty
DataStreams:nsamettwr4hC1.b1
Description:
The CMH mirror was in need of cleaning.  The data is suspect from 05/28/05 through 
07/04/05 as intermittently poor readings occurred.  After 07/04/05 the data was incorrect as the 
mirror was excessively dirty.
Measurements:nsamettwr4hC1.b1:
  • Chilled Mirror Calculated Vapor Pressure(VPCMH)
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Dew Point(CMHDP)
  • Chilled Mirror Temperature(CMHTemp)
  • Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)


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DQRID : D050920.5
Start DateStart TimeEnd DateEnd Time
09/19/2005141609/21/20052203
Subject:
NSA/METTWR/C1 - CMH Data Missing
DataStreams:nsamettwr4hC1.b1
Description:
Data from CMH was missing due to a corroded RS-232 9-Pin connector.
Measurements:nsamettwr4hC1.b1:
  • Chilled Mirror Calculated Vapor Pressure(VPCMH)
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Dew Point(CMHDP)
  • Chilled Mirror Temperature(CMHTemp)
  • Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)


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DQRID : D051011.1
Start DateStart TimeEnd DateEnd Time
10/09/2005162010/11/20050012
Subject:
NSA/METTWR/C1 - 2m wind Direction Sensor Failed
DataStreams:nsamettwr4hC1.b1
Description:
The 2m cup wind direction flat lined at 236 degrees.  Sensor failed.
Measurements:nsamettwr4hC1.b1:
  • Standard Deviation of 2m Vector Averaged Wind Direction(WD2M_SDU_WVT)
  • 2m Vector Averaged Wind Speed(WS2M_U_WVT)
  • 2m Vector Averaged Wind Direction(WD2M_DU_WVT)
  • 2m Arithmetic Mean Wind Speed(WS2M_S_WVT)


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DQRID : D051025.2
Start DateStart TimeEnd DateEnd Time
10/31/2003000009/14/20051420
Subject:
NSA/METTWR/C1 - Data 1-minute behind
DataStreams:nsamettwr4hC1.b1
Description:
Data from the Barometer, Chilled Mirror Hygrometer and the Present Weather Sensor were 
one-minute behind due to timing problems collecting data from the Serial Data Multiplexer 
that handled these sensors.
Measurements:nsamettwr4hC1.b1:
  • 15 minute Present Weather Code(PwCod15mi)
  • 1 minute Average Visibility(AvgVis1mi)
  • Chilled Mirror Dew Point(CMHDP)
  • Instant Present Weather Code(InstPwCod)
  • Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Calculated Vapor Pressure(VPCMH)
  • 1 hour Present Weather Code(PwCod1hr)
  • Cumulative Snow Sum(CumSnow)
  • 10 minute Average Visibility(AvgVis10m)
  • Chilled Mirror Temperature(CMHTemp)
  • Precipitation Rate(PcpRate)
  • Cumulative Water Sum(CumH2O)
  • Present Weather Sensor Alarm(PWSAlarm)
  • Atmospheric Pressure(AtmPress)


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DQRID : D051101.4
Start DateStart TimeEnd DateEnd Time
10/31/2003000010/20/20051900
Subject:
NSA/METTWR/C1 - Reprocess: Wind direction data incorrect
DataStreams:nsamettwr4hC1.b1
Description:
Wind direction data is off by 30 degrees for all wind sensors.  The 40-m tower was 
misaligned to true north.
Measurements:nsamettwr4hC1.b1:
  • 40m Vector Averaged Wind Direction(WD40M_DU_WVT)
  • 2m Vector Averaged Wind Direction(WD2M_DU_WVT)
  • 20m Vector Averaged Wind Direction(WD20M_DU_WVT)
  • Sonic Vector Averaged Wind Direction(SonicWD_DU_WVT)
  • 10m Vector Averaged Wind Direction(WD10M_DU_WVT)


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DQRID : D060223.3
Start DateStart TimeEnd DateEnd Time
02/19/2006140502/20/20061107
02/21/2006061902/21/20062255
Subject:
NSA/METTWR/C2 - CMH Data incorrect
DataStreams:nsamettwr2hC2.b1
Description:
CMH data was incorrect due to blockage of intake by heavy, wet snow during blizzard 
conditions.
Measurements:nsamettwr2hC2.b1:
  • Chilled Mirror Temperature(CMHTemp)
  • Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)
  • Chilled Mirror Calculated Vapor Pressure(VPCMH)
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Dew Point(CMHDP)


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DQRID : D060223.4
Start DateStart TimeEnd DateEnd Time
02/21/2006111302/21/20062359
Subject:
NSA/METTWR/C2 - PWS data incorrect
DataStreams:nsamettwr2hC2.b1
Description:
The Present Weather Sensor measurement optics were blocked by heavy, wet snow during 
blizzard conditions.
Measurements:nsamettwr2hC2.b1:
  • 1 hour Present Weather Code(PWCod1hr)
  • Cumulative Snow Sum(CumSnow)
  • 10 minute Average Visibility(AvgVis10m)
  • Present Weather Sensor Alarm(PWSAlarm)
  • Precipitation Rate(PCPRate)
  • Instant Present Weather Code(InstPWCod)
  • Cumulative Water Sum(CumH2O)
  • 15 minute Present Weather Code(PWcod15mi)
  • 1 minute Average Visibility(AvgVis1mi)


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DQRID : D060303.2
Start DateStart TimeEnd DateEnd Time
02/28/2006070003/06/20062100
Subject:
NSA/METTWR/C1 - CMH temp inaccurate
DataStreams:nsamettwr4hC1.b1
Description:
The CMH Temperature was consistently 4-7 degrees warmer than the 2M, 40M, 20M, and 10M 
temp. Intake fan failure; fan was replaced.
Measurements:nsamettwr4hC1.b1:
  • Chilled Mirror Calculated Vapor Pressure(VPCMH)
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Dew Point(CMHDP)
  • Chilled Mirror Temperature(CMHTemp)
  • Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)


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DQRID : D060323.1
Start DateStart TimeEnd DateEnd Time
01/02/2006050001/06/20061745
01/14/2006120201/23/20061140
Subject:
NSA/METTWR/C1 - 10m Wind Speed Low
DataStreams:nsamettwr4hC1.b1
Description:
The 10m wind speed values are too low due to ice accumulation on the cup anemometer.
Measurements:nsamettwr4hC1.b1:
  • 10m Arithmetic Mean Wind Speed(WS10M_S_WVT)
  • 10m Vector Averaged Wind Speed(WS10M_U_WVT)


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DQRID : D060323.2
Start DateStart TimeEnd DateEnd Time
01/09/2006103001/13/20060402
Subject:
NSA/METTWR/C1 - 10m Wind Speed Intermittently Low
DataStreams:nsamettwr4hC1.b1
Description:
The 10m wind speeds are intermittently too low due to ice accumulation on the cup 
anemometer.
Measurements:nsamettwr4hC1.b1:
  • 10m Arithmetic Mean Wind Speed(WS10M_S_WVT)
  • 10m Vector Averaged Wind Speed(WS10M_U_WVT)


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DQRID : D060323.3
Start DateStart TimeEnd DateEnd Time
01/10/2006060001/13/20060402
01/26/2006160201/27/20060516
02/03/2006002002/05/20060540
Subject:
NSA/METTWR/C1 - 40m Wind Speeds Intermittently Low
DataStreams:nsamettwr4hC1.b1
Description:
The 40m wind speed values were too low due to ice accumulation on the cup anemometer.
Measurements:nsamettwr4hC1.b1:
  • 40m Vector Averaged Wind Speed(WS40M_U_WVT)
  • 40m Arithmetic Mean Wind Speed(WS40M_S_WVT)


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DQRID : D060426.2
Start DateStart TimeEnd DateEnd Time
04/06/2006221204/11/20061812
Subject:
NSA/METTWR/C2 - CMH Data Suspect
DataStreams:nsamettwr2hC2.b1
Description:
CMH data was suspect due to incorrect intake fan installed.  Proper spares were not on 
hand.
Measurements:nsamettwr2hC2.b1:
  • Chilled Mirror Temperature(CMHTemp)
  • Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)
  • Chilled Mirror Calculated Vapor Pressure(VPCMH)
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Dew Point(CMHDP)


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DQRID : D060426.6
Start DateStart TimeEnd DateEnd Time
03/25/2006003704/11/20061811
Subject:
NSA/METTWR/C1 - CMH Data Suspect
DataStreams:nsamettwr4hC1.b1
Description:
CMH data was suspect due to incorrect calibration caused by procedural errors.  The 
procedures were corrected and a new calibration completed.
Measurements:nsamettwr4hC1.b1:
  • Chilled Mirror Calculated Vapor Pressure(VPCMH)
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Dew Point(CMHDP)
  • Chilled Mirror Temperature(CMHTemp)
  • Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)


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DQRID : D060526.3
Start DateStart TimeEnd DateEnd Time
05/25/2006030006/01/20060000
Subject:
NSA/METTWR/C1 - Wind direction measurements suspect
DataStreams:nsamettwr4hC1.b1
Description:
20m wind direction standard deviation was 0 degrees for extended periods of time.  This 
suggests the wind vane was icing up.
Measurements:nsamettwr4hC1.b1:
  • 20m Vector Averaged Wind Direction(WD20M_DU_WVT)
  • Standard Deviation of 20m Vector Averaged Wind Direction(WD20M_SDU_WVT)


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DQRID : D060817.4
Start DateStart TimeEnd DateEnd Time
10/31/2003000007/12/20061608
Subject:
NSA/METTWR/C1 - Reprocess: Barometric Data Changed from hPa to kPa
DataStreams:nsamettwr4hC1.b1
Description:
Barometric pressure data was converted from hPa to kPa in order to standardize the 
measurement units among ARM sites and to conform to accepted standard units determined by the 
scientific community.
Measurements:nsamettwr4hC1.b1:
  • Atmospheric Pressure(AtmPress)


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DQRID : D060818.1
Start DateStart TimeEnd DateEnd Time
11/06/2003000007/12/20061853
Subject:
NSA/METTWR/C2 - Reprocess: Barometric Data Changed from hPa to kPa
DataStreams:nsamettwr2hC2.b1
Description:
Barometric pressure data was converted from hPa to kPa in order to standardize the 
measurement units among ARM sites and to conform to accepted standard units determined by the 
scientific community.
Measurements:nsamettwr2hC2.b1:
  • Atmospheric Pressure(AtmPress)


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DQRID : D060913.2
Start DateStart TimeEnd DateEnd Time
08/11/2006175608/11/20061925
Subject:
NSA/METTWR/C2 - CMH data missing and/or incorrect during maintenance.
DataStreams:nsamettwr2hC2.b1
Description:
CMH measured data was missing and the derived variables were incorrect due to routine 
maintenance.
Measurements:nsamettwr2hC2.b1:
  • Chilled Mirror Temperature(CMHTemp)
  • Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)
  • Chilled Mirror Calculated Vapor Pressure(VPCMH)
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Dew Point(CMHDP)


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DQRID : D060913.3
Start DateStart TimeEnd DateEnd Time
08/21/2006222808/21/20062329
08/22/2006023308/22/20060301
08/23/2006221408/23/20062219
08/24/2006161708/24/20061628
08/25/2006025708/25/20060309
09/01/2006015809/01/20060331
Subject:
NSA/METTWR/C2 - PWS data missing/incorrect due to maintenance.
DataStreams:nsamettwr2hC2.b1
Description:
Present Weather Sensor data was missing or incorrect due to maintenance activities 
repeated approximately daily as we were trying to correct another problem.
Measurements:nsamettwr2hC2.b1:
  • Chilled Mirror Temperature(CMHTemp)
  • 1 hour Present Weather Code(PWCod1hr)
  • Cumulative Snow Sum(CumSnow)
  • 10 minute Average Visibility(AvgVis10m)
  • Present Weather Sensor Alarm(PWSAlarm)
  • Precipitation Rate(PCPRate)
  • Instant Present Weather Code(InstPWCod)
  • Cumulative Water Sum(CumH2O)
  • 15 minute Present Weather Code(PWcod15mi)
  • 1 minute Average Visibility(AvgVis1mi)


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DQRID : D060913.4
Start DateStart TimeEnd DateEnd Time
08/11/2006195208/11/20062006
Subject:
NSA/METTWR/C2 - Met data incorrect due to tower being lowered for maintenance.
DataStreams:nsamettwr2hC2.b1
Description:
Data from the tower is not representative of local conditions due to the tower being 
lowered for radiometer change.  Sensors not attached to the tower such as the Present Weather 
Sensor, the Chilled Mirror Hygrometer and the Barometer were not affected.
Measurements:nsamettwr2hC2.b1:
  • Vector Averaged Wind Speed(WinSpeed_U_WVT)
  • 5m Average Calculated Dew Point(DP5m_AVG)
  • Arithmetic Mean Wind Speed(WinSpeed_S_WVT)
  • Standard Deviation of Vector Averaged Wind Direction(WinDir_SDU_WVT)
  • Vector Averaged Wind Direction(WinDir_DU_WVT)
  • Standard Deviation of 5m Calculated Vapor Pressure(VP5m_STD)
  • 2m Average Temperature(T2m_AVG)
  • 5m Average Temperature(T5m_AVG)
  • 5m Average Relative Humidity(RH5m_AVG)
  • Standard Deviation of 5m Calculated Dew Point(DP5m_STD)
  • 5m Average Calculated Vapor Pressure(VP5m_AVG)
  • Standard Deviation of 5m Relative Humidity(RH5m_STD)
  • 2m Average Calculated Vapor Pressure(VP2m_AVG)
  • 2m Average Relative Humidity(RH2m_AVG)
  • Standard Deviation of 2m Relative Humidity(RH2m_STD)
  • Standard Deviation of 2m Calculated Dew Point(DP2m_STD)
  • Standard Deviation of 2m Calculated Vapor Pressure(VP2m_STD)
  • Standard Deviation of 5m Temperature(T5m_STD)
  • 2m Average Calculated Dew Point(DP2m_AVG)
  • Standard Deviation of 2m Temperature(T2m_STD)


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DQRID : D061003.1
Start DateStart TimeEnd DateEnd Time
09/25/2006223410/04/20062347
Subject:
NSA/METTWR/C1 - All data from 10m Level Missing
DataStreams:nsamettwr4hC1.b1
Description:
The winch that lowers the tower booms failed.  Manual testing of the motor and winch 
allowed the booms to be lowered briefly and then raised back into position.  A heavy freezing 
rain/icing event added extra weight to the booms.  This extra weight was suspected as the 
cause as to why the 10m boom became disconnected.  After a new motor was installed and 
all booms were lowered and re-raised the 10m level came back on line.
Measurements:nsamettwr4hC1.b1:
  • 10m Average Calculated Dew Point(DP10M_AVG)
  • 10m Average QLI Reference Temperature(RefT10m_AVG)
  • Standard Deviation of 10m Calculated Vapor Pressure(VP10M_STD)
  • 10m Average Relative Humidity(RH10M_AVG)
  • 10m Vector Averaged Wind Speed(WS10M_U_WVT)
  • 10m Average Calculated Vapor Pressure(VP10M_AVG)
  • 10m Average QLI Input Voltage(Volt10M_AVG)
  • Standard Deviation of 10m Vector Averaged Wind Direction(WD10M_SDU_WVT)
  • 10m Average Temperature(T10M_AVG)
  • Standard Deviation of 10m Relative Humidity(RH10M_STD)
  • 10m Arithmetic Mean Wind Speed(WS10M_S_WVT)
  • 10m Vector Averaged Wind Direction(WD10M_DU_WVT)
  • Standard Deviation of 10m Calculated Dew Point(DP10M_STD)
  • Standard Deviation of 10m Temperature(T10M_STD)


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DQRID : D061023.1
Start DateStart TimeEnd DateEnd Time
10/18/2006184010/23/20062230
Subject:
NSA/METTWR/C1 - 10m level loss of power
DataStreams:nsamettwr4hC1.b1
Description:
The 10 meter instrument level lost power so all variables from this level are missing.
Measurements:nsamettwr4hC1.b1:
  • 10m Average Calculated Dew Point(DP10M_AVG)
  • 10m Average QLI Reference Temperature(RefT10m_AVG)
  • Standard Deviation of 10m Calculated Vapor Pressure(VP10M_STD)
  • 10m Average Relative Humidity(RH10M_AVG)
  • 10m Vector Averaged Wind Speed(WS10M_U_WVT)
  • 10m Average Calculated Vapor Pressure(VP10M_AVG)
  • 10m Average QLI Input Voltage(Volt10M_AVG)
  • Standard Deviation of 10m Vector Averaged Wind Direction(WD10M_SDU_WVT)
  • 10m Average Temperature(T10M_AVG)
  • Standard Deviation of 10m Relative Humidity(RH10M_STD)
  • 10m Arithmetic Mean Wind Speed(WS10M_S_WVT)
  • 10m Vector Averaged Wind Direction(WD10M_DU_WVT)
  • Standard Deviation of 10m Calculated Dew Point(DP10M_STD)
  • Standard Deviation of 10m Temperature(T10M_STD)


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DQRID : D061025.1
Start DateStart TimeEnd DateEnd Time
10/18/2006224010/23/20062230
Subject:
NSA/METTWR/C1 - 2m T/RH probe aspirator fan failed
DataStreams:nsamettwr4hC1.b1
Description:
The aspirator fan for the 2m level T/RH probe failed.  This caused higher than normal 
readings for temp and RH and artificially smoothed the data.
Measurements:nsamettwr4hC1.b1:
  • 2m Average Calculated Vapor Pressure(VP2M_AVG)
  • Standard Deviation of 2m Calculated Dew Point(DP2M_STD)
  • Standard Deviation of 2m Relative Humidity(RH2M_STD)
  • 2m Average Relative Humidity(RH2M_AVG)
  • Standard Deviation of 2m Calculated Vapor Pressure(VP2M_STD)
  • 2m Average Temperature(T2M_AVG)
  • Standard Deviation of 2m Temperature(T2M_STD)
  • 2m Average Calculated Dew Point(DP2M_AVG)


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DQRID : D061213.1
Start DateStart TimeEnd DateEnd Time
12/12/2006150003/14/20070234
Subject:
NSA/METTWR/C1 - CMH Sensor Calibrated Incorrectly
DataStreams:nsamettwr4hC1.b1
Description:
The CMH temp and DP were higher than the co-located T/RH probe at the 2m level.  An 
incorrect calibration along with a failing thermistor caused the readings to be incorrect for 
both measured values Temp and Dew Point.
Measurements:nsamettwr4hC1.b1:
  • Chilled Mirror Calculated Vapor Pressure(VPCMH)
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Dew Point(CMHDP)
  • Chilled Mirror Temperature(CMHTemp)


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DQRID : D061213.2
Start DateStart TimeEnd DateEnd Time
11/01/2006000005/22/20072347
Subject:
NSA/METTWR/C1 - 40m wind sensor heater failure
DataStreams:nsamettwr4hC1.b1
Description:
The 40m wind direction became frozen at times.  The values from the sensor were flat-lined 
(stdev = 0) much of the time and did not match sensors from other levels.
Measurements:nsamettwr4hC1.b1:
  • 40m Vector Averaged Wind Direction(WD40M_DU_WVT)
  • Standard Deviation of 40m Vector Averaged Wind Direction(WD40M_SDU_WVT)


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DQRID : D070226.1
Start DateStart TimeEnd DateEnd Time
11/20/2006003011/27/20060254
12/08/2006012512/14/20062229
12/16/2006154512/21/20061105
12/23/2006161201/18/20072357
01/20/2007135701/29/20072140
Subject:
NSA/METTWR/C1 - 40m Wind Direction Data Suspect
DataStreams:nsamettwr4hC1.b1
Description:
The 40m wind direction data was suspect due to icing on the vane or a failing shafter 
heater or a combination of both.  The affected data can be easily seen on comparison plots 
with other levels data or by checking the standard deviation of the 40m wind direction.  
Any standard deviation of less than 0.10 degrees for the 40m level suggest a sluggish/ice 
affected sensor.
Measurements:nsamettwr4hC1.b1:
  • 40m Vector Averaged Wind Direction(WD40M_DU_WVT)
  • Standard Deviation of 40m Vector Averaged Wind Direction(WD40M_SDU_WVT)


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DQRID : D070413.1
Start DateStart TimeEnd DateEnd Time
04/09/2007232610/10/20070004
Subject:
NSA/METTWR/C1 - PWS Data Questionable
DataStreams:nsamettwr4hC1.b1
Description:
There was a degradation in the PWS lenses.  New lenses were installed on 08/28/2007 but a 
proper calibration was not conducted until 10/10/2007.  Data  during the listed time 
period should be used with caution.
Measurements:nsamettwr4hC1.b1:
  • 15 minute Present Weather Code(PwCod15mi)
  • 1 minute Average Visibility(AvgVis1mi)
  • Instant Present Weather Code(InstPwCod)
  • 1 hour Present Weather Code(PwCod1hr)
  • Cumulative Snow Sum(CumSnow)
  • 10 minute Average Visibility(AvgVis10m)
  • Precipitation Rate(PcpRate)
  • Cumulative Water Sum(CumH2O)
  • Present Weather Sensor Alarm(PWSAlarm)


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DQRID : D070529.1
Start DateStart TimeEnd DateEnd Time
10/18/2006000005/22/20072330
Subject:
NSA/METTWR/C1 - 20m RH Data Questionable
DataStreams:nsamettwr4hC1.b1
Description:
The 20m RH data was questionable at times.  When the data appeared to be poor was when the 
2m and 20m agreed better than the 20m and the 40m and/or 10m.
Measurements:nsamettwr4hC1.b1:
  • Standard Deviation of 20m Calculated Dew Point(DP20M_STD)
  • Standard Deviation of 20m Calculated Vapor Pressure(VP20M_STD)
  • Standard Deviation of 20m Relative Humidity(RH20M_STD)
  • 20m Average Relative Humidity(RH20M_AVG)
  • 20m Average Calculated Vapor Pressure(VP20M_AVG)
  • 20m Average Calculated Dew Point(DP20M_AVG)


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DQRID : D080325.1
Start DateStart TimeEnd DateEnd Time
03/14/2008201203/31/20080900
Subject:
NSA/METTWR/C1 - Intermittent missing data
DataStreams:nsamettwr4hC1.b1
Description:
Intermittent failure of the CMH to communicate with the logging system occurred on a daily 
basis.  This problem occurred anywhere from 4 to 8 hrs.  Problem began after maintenance 
to replace failing aspirator fan on 03/13/2008.
Measurements:nsamettwr4hC1.b1:
  • Chilled Mirror Calculated Vapor Pressure(VPCMH)
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Dew Point(CMHDP)
  • Chilled Mirror Temperature(CMHTemp)
  • Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)


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DQRID : D080326.2
Start DateStart TimeEnd DateEnd Time
01/05/2008000003/27/20081730
Subject:
NSA/METTWR/C1 - 2m Wind Direction Sensor Freezing
DataStreams:nsamettwr4hC1.b1
Description:
The 2m wind direction was failing.  It began to exhibit instances of no movement 
suggesting it was frozen.  After some time it began to make erratic measurements compared to the 
co-located Ultrasonic and compared to the directions at the other levels.
Measurements:nsamettwr4hC1.b1:
  • Standard Deviation of 2m Vector Averaged Wind Direction(WD2M_SDU_WVT)
  • 2m Vector Averaged Wind Direction(WD2M_DU_WVT)


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DQRID : D080408.2
Start DateStart TimeEnd DateEnd Time
03/07/2008120003/13/20082345
Subject:
NSA/METTWR/C1 - CMH Intake Fan Failure
DataStreams:nsamettwr4hC1.b1
Description:
The CMH intake fan failed causing the dew point and temp data to be incorrect.

If users need only T/RH and derived variables they can use the 2m data collected using the 
HMP-45D probes.  CMH data are unrecoverable.
Measurements:nsamettwr4hC1.b1:
  • Chilled Mirror Calculated Vapor Pressure(VPCMH)
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Dew Point(CMHDP)
  • Chilled Mirror Temperature(CMHTemp)
  • Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)


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DQRID : D080611.1
Start DateStart TimeEnd DateEnd Time
06/09/2008231906/11/20082222
Subject:
NSA/METTWR/C1 - 2m Datalogger Failed
DataStreams:nsamettwr4hC1.b1
Description:
The 2m temperature, wind speed, wind direction, and relative humidity were reporting the 
missing value (-9999).
Measurements:nsamettwr4hC1.b1:
  • Standard Deviation of 2m Vector Averaged Wind Direction(WD2M_SDU_WVT)
  • 2m Average Calculated Vapor Pressure(VP2M_AVG)
  • Standard Deviation of 2m Calculated Dew Point(DP2M_STD)
  • 2m Average Relative Humidity(RH2M_AVG)
  • Standard Deviation of 2m Relative Humidity(RH2M_STD)
  • 2m Average QLI Input Voltage(Volt2M_AVG)
  • 2m Vector Averaged Wind Speed(WS2M_U_WVT)
  • 2m Average Temperature(T2M_AVG)
  • Standard Deviation of 2m Calculated Vapor Pressure(VP2M_STD)
  • Standard Deviation of 2m Temperature(T2M_STD)
  • 2m Average QLI Reference Temperature(RefT2M_AVG)
  • 2m Average Calculated Dew Point(DP2M_AVG)
  • 2m Arithmetic Mean Wind Speed(WS2M_S_WVT)
  • 2m Vector Averaged Wind Direction(WD2M_DU_WVT)


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DQRID : D080612.1
Start DateStart TimeEnd DateEnd Time
05/14/2008150006/20/20081420
Subject:
NSA/METTWR/C1 - CMH required Calibration
DataStreams:nsamettwr4hC1.b1
Description:
The Chilled Mirror was showing some signs of being out of calibration.  Temperatures were 
at times higher than co-located temp probes and the dew point temperature values at times 
were not consistent with co-located RH sensors.
Measurements:nsamettwr4hC1.b1:
  • Chilled Mirror Calculated Vapor Pressure(VPCMH)
  • Chilled Mirror Calculated Relative Humidity(CMHRH)
  • Chilled Mirror Dew Point(CMHDP)
  • Chilled Mirror Temperature(CMHTemp)
  • Chilled Mirror Calculated Saturation Vapor Pressure(SatVPCMH)


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DQRID : D080731.1
Start DateStart TimeEnd DateEnd Time
07/30/2008114108/03/20082359
Subject:
NSA/METTWR/C1 - 2m level data incorrect
DataStreams:nsamettwr4hC1.b1
Description:
The 2m data for temp, RH, dew point, wind speed wind direction & vapor pressure were 
incorrect.  The voltage values for the datalogger at that level were reporting as 60V with 
excursions to 100V.  These values should have damaged the logger at that level.  After an 
extended power outage on 08/04 the data all became reasonable. There is no explanation as 
to the cause of this failure.
Measurements:nsamettwr4hC1.b1:
  • Standard Deviation of 2m Vector Averaged Wind Direction(WD2M_SDU_WVT)
  • 2m Average Calculated Vapor Pressure(VP2M_AVG)
  • Standard Deviation of 2m Calculated Dew Point(DP2M_STD)
  • 2m Average Relative Humidity(RH2M_AVG)
  • Standard Deviation of 2m Relative Humidity(RH2M_STD)
  • 2m Average QLI Input Voltage(Volt2M_AVG)
  • 2m Vector Averaged Wind Speed(WS2M_U_WVT)
  • 2m Average Temperature(T2M_AVG)
  • Standard Deviation of 2m Calculated Vapor Pressure(VP2M_STD)
  • Standard Deviation of 2m Temperature(T2M_STD)
  • 2m Average QLI Reference Temperature(RefT2M_AVG)
  • 2m Average Calculated Dew Point(DP2M_AVG)
  • 2m Arithmetic Mean Wind Speed(WS2M_S_WVT)
  • 2m Vector Averaged Wind Direction(WD2M_DU_WVT)


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DQRID : D981102.1
Start DateStart TimeEnd DateEnd Time
08/21/1998000010/22/19982200
Subject:
NSA/TOWER - Mislabeled tower sensors
DataStreams:nsametC1.00, nsamettwrC1.a1
Description:
The NSA tower data displayed on the local computer screen had the height 
mislabeled. Data written to files were correct.  When the data acquisition 
program was fixed on 22 OCT 1998, only the computer display was changed.
Measurements:nsamettwrC1.a1:
  • Minimum Dew Point Temperature(dew_pt_temp_min)
  • Wind Speed out of range error(win_spd_out_of_range_error)
  • Mean Dew Point Temperature(dew_pt_temp_mean)
  • Wind Direction out of range error(win_dir_out_of_range_error)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • base time(base_time)
  • Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error)
  • Number of timeouts reading the met tower data by height(read_timeout_count)
  • Maximum Wind Direction(wind_dir_max)
  • Air Temperature Hardware Error(temp_hardware_error)
  • Time offset of tweaks from base_time(time_offset)
  • PTB Serial Error(atmos_pressure_PTB_serial_error)
  • Barometric Pressure(atmos_pressure)
  • Read Timeout Error(atmos_pressure_read_timeout_error)
  • Air Temperature out of range error(temp_out_of_range_error)
  • Minimum Wind Speed(wind_spd_min)
  • Std Dev of Dew Point Temperature(dew_pt_temp_sd)
  • Relative humidity minimum(relh_min)
  • Minimum Wind Direction(wind_dir_min)
  • Maximum Wind Speed(wind_spd_max)
  • Vapor Pressure out of range error(vap_pres_out_of_range_error)
  • lon(lon)
  • lat(lat)
  • Std Dev of Wind Speed(wind_spd_sd)
  • Std Dev of Air Temperature(temp_sd)
  • Minimum Vapor Pressure(vap_pres_min)
  • Std Dev of Vapor Pressure(vap_pres_sd)
  • Internal Temperature out of range error(internal_temp_out_of_range_error)
  • Relative humidity maximum(relh_max)
  • GPS raw data filename(filename)
  • Mean Relative Humidity(relh_mean)
  • Maximum Vapor Pressure(vap_pres_max)
  • Relative Humidity out of range error(relh_out_of_range_error)
  • Temperature maximum(temp_max)
  • Mean Vapor Pressure(vap_pres_mean)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Temperature minimum(temp_min)
  • Std Dev of Wind Direction(wind_dir_sd)
  • Mean Wind Speed(wind_spd_mean)
  • Maximum Dew Point Temperature(dew_pt_temp_max)
  • Dummy altitude for Zeb(alt)
  • Dew Point Temperature Hardware Error(dew_pt_hardware_error)
  • Mean Air Temperature or Hardware Error(temp_mean)
  • Out of Range Error(atmos_pressure_out_of_range_error)
  • Std Dev of Relative Humidity or Hardware Error Code(relh_sd)
  • Internal Voltage out of range error(internal_voltage_out_of_range_error)

nsametC1.00:
  • null(Raw data stream - documentation not supported)


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DQRID : D991116.1
Start DateStart TimeEnd DateEnd Time
09/08/1999220010/25/19992300
Subject:
NSA/METTOWER - Questionable NSA Met-tower wind data
DataStreams:nsametC1.00, nsamettwrC1.a1
Description:
The data analysis software for the NSA Met_tower system was upgraded at 2200 GMT
on 8 SEP 1999.  The upgrade included replacement of missing data with -99.99's
when the routine that polled the Met-tower sensors timed out.  This 
resulted in large negative spikes in the 1-min averages.  These spikes 
almost always occurred during the first several 1-min periods of a 
half-hour data processing routine.
On 25 OCT 1999 at 2300 the routine that replaced missing data was changed to 
insert the previous 1-min averaged data instead of -99.99.  Since at the most
only one or two values are missing in ay averaging period, this change 
results in a reasonable estimate of the true mean values
Measurements:nsamettwrC1.a1:
  • Minimum Dew Point Temperature(dew_pt_temp_min)
  • Wind Speed out of range error(win_spd_out_of_range_error)
  • Mean Dew Point Temperature(dew_pt_temp_mean)
  • Wind Direction out of range error(win_dir_out_of_range_error)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • base time(base_time)
  • Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error)
  • Number of timeouts reading the met tower data by height(read_timeout_count)
  • Maximum Wind Direction(wind_dir_max)
  • Air Temperature Hardware Error(temp_hardware_error)
  • Time offset of tweaks from base_time(time_offset)
  • PTB Serial Error(atmos_pressure_PTB_serial_error)
  • Barometric Pressure(atmos_pressure)
  • Read Timeout Error(atmos_pressure_read_timeout_error)
  • Air Temperature out of range error(temp_out_of_range_error)
  • Minimum Wind Speed(wind_spd_min)
  • Std Dev of Dew Point Temperature(dew_pt_temp_sd)
  • Relative humidity minimum(relh_min)
  • Minimum Wind Direction(wind_dir_min)
  • Maximum Wind Speed(wind_spd_max)
  • Vapor Pressure out of range error(vap_pres_out_of_range_error)
  • lon(lon)
  • lat(lat)
  • Std Dev of Wind Speed(wind_spd_sd)
  • Std Dev of Air Temperature(temp_sd)
  • Minimum Vapor Pressure(vap_pres_min)
  • Std Dev of Vapor Pressure(vap_pres_sd)
  • Internal Temperature out of range error(internal_temp_out_of_range_error)
  • Relative humidity maximum(relh_max)
  • GPS raw data filename(filename)
  • Mean Relative Humidity(relh_mean)
  • Maximum Vapor Pressure(vap_pres_max)
  • Relative Humidity out of range error(relh_out_of_range_error)
  • Temperature maximum(temp_max)
  • Mean Vapor Pressure(vap_pres_mean)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Temperature minimum(temp_min)
  • Std Dev of Wind Direction(wind_dir_sd)
  • Mean Wind Speed(wind_spd_mean)
  • Maximum Dew Point Temperature(dew_pt_temp_max)
  • Dummy altitude for Zeb(alt)
  • Dew Point Temperature Hardware Error(dew_pt_hardware_error)
  • Mean Air Temperature or Hardware Error(temp_mean)
  • Out of Range Error(atmos_pressure_out_of_range_error)
  • Std Dev of Relative Humidity or Hardware Error Code(relh_sd)
  • Internal Voltage out of range error(internal_voltage_out_of_range_error)

nsametC1.00:
  • null(Raw data stream - documentation not supported)


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DQRID : D991116.2
Start DateStart TimeEnd DateEnd Time
09/08/1999220011/15/19992200
Subject:
NSA/METTOWER - Questionable NSA Met-tower wind data
DataStreams:nsametC1.00, nsamettwrC1.a1
Description:
The data analysis software for the NSA Met-tower system was upgraded at 2200 GMT
on 8 SEP 1999.  The upgrade included insertion of  -99.99's for the wind vectors 
when the wind speed or direction were either missing or equal to 0.  This 
resulted in incorrect vector averaged wind speed, wind direction, and 
standard deviation of wind direction.  When this occurred, the 
vector-averaged wind speed and standard deviation of wind direction 
were often abnormally high and the vector-averaged wind direction
 was often approximately 225 deg.  Starting at 2300 GMT on 25 OCT 99
missing wind data were replaced by the previous 1-min average and 
starting at 2200 GMT on 15 NOV 1999 the computed wind vectors were 
used whenever wind speeds or wind directions were 0.
Measurements:nsamettwrC1.a1:
  • Minimum Dew Point Temperature(dew_pt_temp_min)
  • Wind Speed out of range error(win_spd_out_of_range_error)
  • Mean Dew Point Temperature(dew_pt_temp_mean)
  • Wind Direction out of range error(win_dir_out_of_range_error)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • base time(base_time)
  • Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error)
  • Number of timeouts reading the met tower data by height(read_timeout_count)
  • Maximum Wind Direction(wind_dir_max)
  • Air Temperature Hardware Error(temp_hardware_error)
  • Time offset of tweaks from base_time(time_offset)
  • PTB Serial Error(atmos_pressure_PTB_serial_error)
  • Barometric Pressure(atmos_pressure)
  • Read Timeout Error(atmos_pressure_read_timeout_error)
  • Air Temperature out of range error(temp_out_of_range_error)
  • Minimum Wind Speed(wind_spd_min)
  • Std Dev of Dew Point Temperature(dew_pt_temp_sd)
  • Relative humidity minimum(relh_min)
  • Minimum Wind Direction(wind_dir_min)
  • Maximum Wind Speed(wind_spd_max)
  • Vapor Pressure out of range error(vap_pres_out_of_range_error)
  • lon(lon)
  • lat(lat)
  • Std Dev of Wind Speed(wind_spd_sd)
  • Std Dev of Air Temperature(temp_sd)
  • Minimum Vapor Pressure(vap_pres_min)
  • Std Dev of Vapor Pressure(vap_pres_sd)
  • Internal Temperature out of range error(internal_temp_out_of_range_error)
  • Relative humidity maximum(relh_max)
  • GPS raw data filename(filename)
  • Mean Relative Humidity(relh_mean)
  • Maximum Vapor Pressure(vap_pres_max)
  • Relative Humidity out of range error(relh_out_of_range_error)
  • Temperature maximum(temp_max)
  • Mean Vapor Pressure(vap_pres_mean)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Temperature minimum(temp_min)
  • Std Dev of Wind Direction(wind_dir_sd)
  • Mean Wind Speed(wind_spd_mean)
  • Maximum Dew Point Temperature(dew_pt_temp_max)
  • Dummy altitude for Zeb(alt)
  • Dew Point Temperature Hardware Error(dew_pt_hardware_error)
  • Mean Air Temperature or Hardware Error(temp_mean)
  • Out of Range Error(atmos_pressure_out_of_range_error)
  • Std Dev of Relative Humidity or Hardware Error Code(relh_sd)
  • Internal Voltage out of range error(internal_voltage_out_of_range_error)

nsametC1.00:
  • null(Raw data stream - documentation not supported)


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DQRID : D991129.1
Start DateStart TimeEnd DateEnd Time
03/24/1998000011/29/19992000
Subject:
NSA/METOWER - Reprocess: Incorrect NSA wind direction minima and maxima
DataStreams:nsametC1.00, nsamettwrC1.a1
Description:
From the time of installation of the NSA C1 Met-tower system on 24 MAR 1998
until 29 NOV 1999 all wind direction minima and maxima were reported as raw
(unrotated) data.  In order to obtain correct minima and maxima 30 deg must
be subtracted from the value.  All mean wind directions were computed from
rotated (corrected) data.
Measurements:nsamettwrC1.a1:
  • Minimum Dew Point Temperature(dew_pt_temp_min)
  • Wind Speed out of range error(win_spd_out_of_range_error)
  • Mean Dew Point Temperature(dew_pt_temp_mean)
  • Wind Direction out of range error(win_dir_out_of_range_error)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • base time(base_time)
  • Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error)
  • Number of timeouts reading the met tower data by height(read_timeout_count)
  • Maximum Wind Direction(wind_dir_max)
  • Air Temperature Hardware Error(temp_hardware_error)
  • Time offset of tweaks from base_time(time_offset)
  • PTB Serial Error(atmos_pressure_PTB_serial_error)
  • Barometric Pressure(atmos_pressure)
  • Read Timeout Error(atmos_pressure_read_timeout_error)
  • Air Temperature out of range error(temp_out_of_range_error)
  • Minimum Wind Speed(wind_spd_min)
  • Std Dev of Dew Point Temperature(dew_pt_temp_sd)
  • Relative humidity minimum(relh_min)
  • Minimum Wind Direction(wind_dir_min)
  • Maximum Wind Speed(wind_spd_max)
  • Vapor Pressure out of range error(vap_pres_out_of_range_error)
  • lon(lon)
  • lat(lat)
  • Std Dev of Wind Speed(wind_spd_sd)
  • Std Dev of Air Temperature(temp_sd)
  • Minimum Vapor Pressure(vap_pres_min)
  • Std Dev of Vapor Pressure(vap_pres_sd)
  • Internal Temperature out of range error(internal_temp_out_of_range_error)
  • Relative humidity maximum(relh_max)
  • GPS raw data filename(filename)
  • Mean Relative Humidity(relh_mean)
  • Maximum Vapor Pressure(vap_pres_max)
  • Relative Humidity out of range error(relh_out_of_range_error)
  • Temperature maximum(temp_max)
  • Mean Vapor Pressure(vap_pres_mean)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Temperature minimum(temp_min)
  • Std Dev of Wind Direction(wind_dir_sd)
  • Mean Wind Speed(wind_spd_mean)
  • Maximum Dew Point Temperature(dew_pt_temp_max)
  • Dummy altitude for Zeb(alt)
  • Dew Point Temperature Hardware Error(dew_pt_hardware_error)
  • Mean Air Temperature or Hardware Error(temp_mean)
  • Out of Range Error(atmos_pressure_out_of_range_error)
  • Std Dev of Relative Humidity or Hardware Error Code(relh_sd)
  • Internal Voltage out of range error(internal_voltage_out_of_range_error)

nsametC1.00:
  • null(Raw data stream - documentation not supported)


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