DQRs for Session: 116576 User:perezCompleted: 12-18-2008

Data Quality Reports for Session: 116576 User: perez Completed: 12/18/2008

TABLE OF CONTENTS

DQR ID	Subject	Data Streams Affected
D001107.2	NSA/C1 data loss due to cut fiber optic cable	nsamettwrC1.a1, nsaorgC1.a1, nsapwsC1.a0
D011128.2	NSA/PWS/C1 - Calibration drift	nsapwsC1.a1
D020424.1	NSA/METTWRC1 - METTWRCQ DATA REPORTED AS -9999	nsamettwrC1.a1, nsamettwrC1.b1, nsaorgC1.a1, nsaorgC1.b1, nsapwsC1.a1, nsapwsC1.b1
D020424.2	NSA/METTWRC1 - METTWRC1 NO DATA COLLECTED FROM TOWER	nsamettwrC1.a1, nsamettwrC1.b1, nsaorgC1.a1, nsaorgC1.b1, nsapwsC1.a1, nsapwsC1.b1
D020509.10	NSA/CMH/C2 - Occasional Bad Temp and DP	nsacmhC2.00, nsacmhC2.a1
D020509.11	NSA/CMH/C2 - Data Missing	nsacmhC2.00, nsacmhC2.a1
D020509.17	NSA/CMH/C2 - Data Missing	nsacmhC2.00, nsacmhC2.a1
D020509.5	NSA/CMH/C2 - Temp and DP have spikes	nsacmhC2.00, nsacmhC2.a1
D020509.6	NSA/CMH/C2 - Some RH Values incorrect	nsacmhC2.00, nsacmhC2.a1
D020703.2	NSA/ORG/C1 - Optical Rain Gauge incorrect at very low temperatures	nsaorgC1.a1, nsaorgC1.b1
D020703.3	NSA/ORG/C1 - Optical Rain Gauge incorrect at very low temperatures	nsaorgC1.a1
D030328.1	NSA/CMH/C1 - Data not representative	nsacmhC1.00, nsacmhC1.b1
D030411.4	NSA/C2 - Missing met, pws, snodep data due to comm error	nsamettiptwrC2.a1, nsamettiptwrC2.b1, nsapwsC2.a1, nsapwsC2.b1, nsasnodepC2.a1
D030613.1	NSA/PWS/C1 - C1/BARROW PWS WORKING INTERMITTENTLY	nsapwsC1.a1, nsapwsC1.b1
D040312.2	NSA/CMH/C1 - Data not representative	nsacmhC1.a1

DQRID : D001107.2

Start Date	Start Time	End Date	End Time
03/14/2000	0000	04/06/2000	2359

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 : D011128.2

Start Date	Start Time	End Date	End Time
05/23/2000	0000	10/10/2001	0037

Subject:	NSA/PWS/C1 - Calibration drift
DataStreams:	nsapwsC1.a1
Description:	The calibration of the sensor drifted downwards slightly more than 3% during the more than two years in between calibrations. The drift had no significant impact on the data produced. Note: the period of this DQR extends back prior to 20000503 when the datastream was named nsapwsC1.a0.
Measurements:	nsapwsC1.a1: one Minute Visibility(one_minute_visibility) Cumulative Snow(cumulative_snow) Precipitation rate(precip_rate) Ten Minute Visibility(ten_minute_visibility) Cumulative Liquid Water Equivalent(cumul_liq_water_equiv)

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DQRID : D020424.1

Start Date	Start Time	End Date	End Time
02/04/2002	1006	02/04/2002	1022
02/11/2002	2100	02/21/2002	1929

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 Date	Start Time	End Date	End Time
02/04/2002	1023	02/11/2002	2059
02/21/2002	1930	02/21/2002	2002

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 : D020509.10

Start Date	Start Time	End Date	End Time
04/23/2001	1731	05/30/2001	2100

Subject:	NSA/CMH/C2 - Occasional Bad Temp and DP
DataStreams:	nsacmhC2.00, nsacmhC2.a1
Description:	During the time period indicated, temperature was occasionally incorrectly reported as -320 and dew point was occasionally incorrectly reported as -32.
Measurements:	nsacmhC2.00: null(Raw data stream - documentation not supported) nsacmhC2.a1: Air temperature out of range error(air_temp_out_of_range_error) Dew point temperature(dew_pt_temp) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) Air temperature(air_temp)

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DQRID : D020509.11

Start Date	Start Time	End Date	End Time
05/30/2001	2101	06/16/2001	0629
07/04/2001	1701	07/14/2001	1700
07/30/2001	0501	08/06/2001	0630

Subject:	NSA/CMH/C2 - Data Missing
DataStreams:	nsacmhC2.00, nsacmhC2.a1
Description:	During the time periods indicated, all data were reported as -9999, missing.
Measurements:	nsacmhC2.00: null(Raw data stream - documentation not supported) nsacmhC2.a1: Air temperature out of range error(air_temp_out_of_range_error) Relative humidity(relh) Relative Humidity out of range error(relh_out_of_range_error) Read timeout error(read_timeout_error) Serial port read error(serial_read_error) Dew point temperature(dew_pt_temp) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) Air temperature(air_temp)

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DQRID : D020509.17

Start Date	Start Time	End Date	End Time
03/10/2002	0000	04/20/2003	0203

Subject:	NSA/CMH/C2 - Data Missing
DataStreams:	nsacmhC2.00, nsacmhC2.a1
Description:	Data collection and processing turned off due to chronic instrument problems. No raw or processed data are available.
Measurements:	nsacmhC2.00: null(Raw data stream - documentation not supported) nsacmhC2.a1: lat(lat) Relative humidity(relh) lon(lon) Read timeout error(read_timeout_error) Dummy altitude for Zeb(alt) Air temperature(air_temp) Air temperature out of range error(air_temp_out_of_range_error) Relative Humidity out of range error(relh_out_of_range_error) Dew point temperature(dew_pt_temp) Serial port read error(serial_read_error) base time(base_time) Time offset of tweaks from base_time(time_offset) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error)

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DQRID : D020509.5

Start Date	Start Time	End Date	End Time
03/31/2001	2320	04/04/2001	1000
04/06/2001	1001	04/18/2001	1100
04/19/2002	0001	04/23/2002	1730

Subject:	NSA/CMH/C2 - Temp and DP have spikes
DataStreams:	nsacmhC2.00, nsacmhC2.a1
Description:	During the time periods indicated, the temperature and dew point data contain spikes. This usually meant the first record had 99.99 meaning missing, but sometimes the whole record was bad.
Measurements:	nsacmhC2.00: null(Raw data stream - documentation not supported) nsacmhC2.a1: Air temperature out of range error(air_temp_out_of_range_error) Dew point temperature(dew_pt_temp) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) Air temperature(air_temp)

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DQRID : D020509.6

Start Date	Start Time	End Date	End Time
03/31/2001	2320	04/25/2001	2359

Subject:	NSA/CMH/C2 - Some RH Values incorrect
DataStreams:	nsacmhC2.00, nsacmhC2.a1
Description:	During the time period indicated, RH values were off by a factor of 10 (decimal shifted to the left one place) whenever temp, dew point or both were between 1 deg and 9 deg. RH was reported as zero whenever temp, dew point or both were 0 deg or less. RH values are okay when temp and dew point were both 10 deg or above.
Measurements:	nsacmhC2.00: null(Raw data stream - documentation not supported) nsacmhC2.a1: Relative humidity(relh) Relative Humidity out of range error(relh_out_of_range_error)

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DQRID : D020703.2

Start Date	Start Time	End Date	End Time
04/01/2001	0000	10/13/2003	1946

Subject:	NSA/ORG/C1 - Optical Rain Gauge incorrect at very low temperatures
DataStreams:	nsaorgC1.a1, nsaorgC1.b1
Description:	The ORG reports precipitation rates that are more than 2 orders of magnitude greater than those reported by the present weather sensor when the temperature drops below -25 C. Examples of this error can be seen in the data for January 11-13, 2000, however the problem is not isolated to these days. A drift occurs when temps are in the range of -25 C to -40 C that exceeds the maximum drift allowed/expected for the instrument. The drift is then reported as precipitation. The manufacturer of the instrument has not yet been able to identify a fix for the problem.
Measurements:	nsaorgC1.b1: Daily Accumulation(precip_daily_accum) NWS code(precip_NWS_code) ORG No Data Error(precip_no_data_error) 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) nsaorgC1.a1: ORG Serial Error(precip_serial_error) ORG Read Timeout Error(precip_read_timeout_error) Daily Accumulation out of range error(precip_out_of_range_error) NWS code(precip_NWS_code) ORG No Data Error(precip_no_data_error) Precipitation rate(precip_rate) Daily Accumulation(precip_daily_accum)

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DQRID : D020703.3

Start Date	Start Time	End Date	End Time
03/20/1998	0101	03/31/2001	2359

Subject:	NSA/ORG/C1 - Optical Rain Gauge incorrect at very low temperatures
DataStreams:	nsaorgC1.a1
Description:	The ORG reports precipitation rates that are more than 2 orders of magnitude greater than those reported by the present weather sensor when the temperature drops below -25 C. Examples of this error can be seen in the data for January 11-13, 2000, however the problem is not isolated to these days. A drift occurs when temps are in the range of -25 C to -40 C that exceeds the maximum drift allowed/expected for the instrument. The drift is then reported as precipitation. The manufacturer of the instrument has not yet been able to identify a fix for the problem.
Measurements:	nsaorgC1.a1: ORG Read Timeout Error(precip_read_timeout_error) ORG Serial Error(precip_serial_error) Daily Accumulation out of range error(precip_out_of_range_error) ORG No Data Error(precip_no_data_error) Daily Accumulation(precip_daily_accum) NWS code(precip_NWS_code) Precipitation rate(precip_rate)

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DQRID : D030328.1

Start Date	Start Time	End Date	End Time
03/26/2003	1200	10/22/2003	1700

Subject:	NSA/CMH/C1 - Data not representative
DataStreams:	nsacmhC1.00, nsacmhC1.b1
Description:	The CMH at the NS Barrow site was moved from the base of the tower to the top of the Great White Building. This was done to test the communication of the sensor without having to use any bit drivers.
Measurements:	nsacmhC1.00: null(Raw data stream - documentation not supported) nsacmhC1.b1: Serial port read error(serial_read_error) Read timeout error(read_timeout_error) Time offset of tweaks from base_time(time_offset) Relative Humidity out of range error(relh_out_of_range_error) lat(lat) base time(base_time) Air temperature out of range error(air_temp_out_of_range_error) Dummy altitude for Zeb(alt) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) Relative humidity(relh) Dew point temperature(dew_pt_temp) Air temperature(air_temp) lon(lon)

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DQRID : D030411.4

Start Date	Start Time	End Date	End Time
11/25/2002	1430	03/26/2003	2229

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 : D030613.1

Start Date	Start Time	End Date	End Time
11/17/2002	0200	04/22/2003	1918

Subject:	NSA/PWS/C1 - C1/BARROW PWS WORKING INTERMITTENTLY
DataStreams:	nsapwsC1.a1, nsapwsC1.b1
Description:	The PWS worked intermittently throughout entire period. Extensive troubleshooting located a broken wire in the RS-232 connector. Contact was made intermittently allowing some data to be recorded.
Measurements:	nsapwsC1.a1: 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) Precipitation rate(precip_rate) one Minute Visibility(one_minute_visibility) Ten Minute PW code \\(WMO SYNOP code\\)(ten_minute_PW_code) One Minute PW code out of range error(one_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) One Hour PW code \\(WMO SYNOP code\\)(one_hour_PW_code) Ten Minute Visibility out of range error(ten_minute_vis_out_of_range_error) Ten Minute Visibility(ten_minute_visibility) Ten Minute PW code out of range error(ten_min_pw_code_out_of_range_error) Cumulative Liquid Water Equivalent(cumul_liq_water_equiv) Liquid Water Equivalent out of range error(cumul_liq_water_equiv_out_of_range_err) 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) One Minute Visibility out of range error(one_minute_vis_out_of_range_error) Present Weather Sensor Serial Error(pws_serial_error) nsapwsC1.b1: One Minute Visibility out of range error(one_minute_vis_out_of_range_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) Liquid Water Equivalent out of range error(cumul_liq_water_equiv_out_of_range_err) Precipitation rate(precip_rate) Ten Minute PW code \\(WMO SYNOP code\\)(ten_minute_PW_code) Ten Minute Visibility out of range error(ten_minute_vis_out_of_range_error) Present Weather Sensor Serial Error(pws_serial_error) Present Weather Sensor Read Timeout Error(pws_read_timeout_error) One Minute PW code \\(WMO SYNOP code\\)(one_minute_PW_code) One Minute PW code out of range error(one_min_pw_code_out_of_range_error) Ten Minute Visibility(ten_minute_visibility) 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) Cumulative Snow(cumulative_snow) Cumulative Snow out of range error(cumul_snow_out_of_range_error) NWS code(present_weather_sensor_NWS_code) One Hour PW code \\(WMO SYNOP code\\)(one_hour_PW_code)

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DQRID : D040312.2

Start Date	Start Time	End Date	End Time
03/26/2003	1200	05/28/2003	2359

Subject:	NSA/CMH/C1 - Data not representative
DataStreams:	nsacmhC1.a1
Description:	White Building. This was done to test the communication of the sensor without having to use any bit drivers.
Measurements:	nsacmhC1.a1: Dummy altitude for Zeb(alt) lat(lat) Relative humidity(relh) Time offset of tweaks from base_time(time_offset) Air temperature(air_temp) Dew point temperature(dew_pt_temp) Read timeout error(read_timeout_error) Dew Point Temperature out of range error(dew_pt_temp_out_of_range_error) Serial port read error(serial_read_error) lon(lon) Relative Humidity out of range error(relh_out_of_range_error) base time(base_time) Air temperature out of range error(air_temp_out_of_range_error)

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