Data Quality Reports for Session: 184002 User: moffettc1 Completed: 03/03/2017


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected Data Quality Metric
D131017.1OLI/MET/M1 - Reprocess: Wind data spikesolimetM1.b1Suspect
D131023.1OLI/MET/M1 - PWD visibility data errorolimetM1.b1Incorrect
D131219.2OLI/MET/M1 - Data spikesolimetM1.b1Incorrect
D131219.3OLI/MET/M1 - Spikes in wind dataolimetM1.b1Suspect
D140212.7OLI/MET/M1 - Incorrect PWD dataolimetM1.b1Incorrect
D140311.1OLI/MET/M1 - PWD decreasing cumulative liquid precipitationolimetM1.b1Incorrect
D140729.2OLI/MET/M1 - Ice on chilled mirrorolimetM1.b1Incorrect
D140806.4OLI/MET/M1 - Ice on chilled mirrorolimetM1.b1Suspect
D140919.1OLI/MET/M1 - Instrument problemolimetM1.b1Suspect
D150123.5OLI/MET/M1 - Power OutageolimetM1.b1Missing
D151102.5OLI/MET/M1 - Noisy (and missing) CMH dataolimetM1.b1Incorrect
D151111.10OLI/MET/M1 - Chilled mirror hygrometer data spikes due to generator maintenanceolimetM1.b1Incorrect
D151111.11OLI/MET/M1 - Wind data missing following generator maintenanceolimetM1.b1Missing
D151111.9OLI/MET/M1 - Present weather detector backscatter warningolimetM1.b1Does not affect quality
D151218.14OLI/MET/M1 - Intermittent wind data lossolimetM1.b1Does not affect quality
D160524.1OLI/MET/M1 - Tower maintenanceolimetM1.b1Incorrect
D160614.7OLI/MET/M1 - Wind sensor communication failureolimetM1.b1Missing
D160708.13OLI/MET/M1 - Missing wind dataolimetM1.b1Missing
D160711.2OLI/MET/M1 - Missing wind dataolimetM1.b1Missing
D170110.1OLI/M1 - Severe StormolimetM1.b1Does not affect quality


DQRID : D131017.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/11/2013003210/17/20131550Suspect
Subject:
OLI/MET/M1 - Reprocess: Wind data spikes
DataStreams:olimetM1.b1
Description:
Sporadic wind speed spikes of 7999 m/s (and corresponding wind directions of 135.3 
degrees) should be ignored. They are actually missing data values.
Measurements:olimetM1.b1:
  • wdir_vec_std
  • Wind speed vector mean(wspd_vec_mean)
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • Wind direction vector mean(wdir_vec_mean)


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DQRID : D131023.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/20/2013000010/23/20131630Incorrect
Subject:
OLI/MET/M1 - PWD visibility data error
DataStreams:olimetM1.b1
Description:
The present weather detector reported visibilities over 9999 meters as 0 meters during 
this time. Any visibilities under 9999 meters are correct.
Measurements:olimetM1.b1:
  • PWD 10 minute mean visibility(pwd_mean_vis_10min)
  • PWD 1 minute mean visibility(pwd_mean_vis_1min)


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DQRID : D131219.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/13/2013053211/13/20130548Incorrect
11/13/2013002811/13/20130033Incorrect
11/12/2013225411/12/20132257Incorrect
11/08/2013000411/08/20130009Incorrect
11/08/2013013111/08/20130136Incorrect
Subject:
OLI/MET/M1 - Data spikes
DataStreams:olimetM1.b1
Description:
Power outages related to maintenance at the site caused data spikes and missing data 
during these time periods.
Measurements:olimetM1.b1:
  • PWD 1 minute mean visibility(pwd_mean_vis_1min)
  • temp_std
  • cmh_sat_vapor_pressure
  • Wind speed vector mean(wspd_vec_mean)
  • pwd_pw_code_1hr
  • dew_point_std
  • Humidity, relative, at 2-m height, 1-min avg(rh_mean)
  • cmh_temp
  • pwd_err_code
  • logger_volt
  • rh_std
  • pwd_cumul_snow
  • cmh_dew_point
  • Wind direction vector mean(wdir_vec_mean)
  • cmh_vapor_pressure
  • dew_point_mean
  • logger_temp
  • Temperature mean(temp_mean)
  • pwd_cumul_rain
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • pwd_pw_code_inst
  • trh_err_code
  • pwd_pw_code_15min
  • vapor_pressure_std
  • wdir_vec_std
  • PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
  • PWD 10 minute mean visibility(pwd_mean_vis_10min)
  • cmh_rh
  • Atmospheric pressure(atmos_pressure)
  • Vapor pressure mean, calculated(vapor_pressure_mean)


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DQRID : D131219.3
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/07/2013000011/27/20130500Suspect
Subject:
OLI/MET/M1 - Spikes in wind data
DataStreams:olimetM1.b1
Description:
Occasional spikes in the wind data are not representative of actual conditions.
Measurements:olimetM1.b1:
  • wdir_vec_std
  • Wind speed vector mean(wspd_vec_mean)
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • Wind direction vector mean(wdir_vec_mean)


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DQRID : D140212.7
Start DateStart TimeEnd DateEnd Time Data Quality Metric
02/01/2014225402/01/20142359Incorrect
Subject:
OLI/MET/M1 - Incorrect PWD data
DataStreams:olimetM1.b1
Description:
Snow blower created incorrect PWD data.
Measurements:olimetM1.b1:
  • PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
  • PWD 10 minute mean visibility(pwd_mean_vis_10min)
  • PWD 1 minute mean visibility(pwd_mean_vis_1min)
  • pwd_err_code
  • pwd_cumul_rain
  • pwd_pw_code_inst
  • pwd_pw_code_1hr
  • pwd_pw_code_15min


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DQRID : D140311.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
02/18/2014150002/19/20141900Incorrect
Subject:
OLI/MET/M1 - PWD decreasing cumulative liquid precipitation
DataStreams:olimetM1.b1
Description:
For an unknown reason, the PWD reports decreasing cumulative liquid precipitation during 
this time.
Measurements:olimetM1.b1:
  • pwd_cumul_rain


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DQRID : D140729.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/16/2014000007/16/20140348Incorrect
Subject:
OLI/MET/M1 - Ice on chilled mirror
DataStreams:olimetM1.b1
Description:
Icing is apparent on the chilled mirror, and data should not be used.
Measurements:olimetM1.b1:
  • cmh_rh
  • cmh_dew_point
  • cmh_vapor_pressure


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DQRID : D140806.4
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/02/2014180306/15/20142359Suspect
Subject:
OLI/MET/M1 - Ice on chilled mirror
DataStreams:olimetM1.b1
Description:
Ice was found on the chilled mirror. There are occasional dropouts/spikes, and data do not 
always compare well with co-located sensors. Discretion should be used during this time.
Measurements:olimetM1.b1:
  • cmh_rh
  • cmh_dew_point
  • cmh_vapor_pressure


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DQRID : D140919.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/08/2014201609/09/20141053Suspect
Subject:
OLI/MET/M1 - Instrument problem
DataStreams:olimetM1.b1
Description:
The chilled mirror dew point, vapor pressure, and relative humidity data fall out of 
agreement with co-located sensors during this time. After an instrument self-check, the 
problem was resolved.
Measurements:olimetM1.b1:
  • cmh_rh
  • cmh_dew_point
  • cmh_vapor_pressure


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DQRID : D150123.5
Start DateStart TimeEnd DateEnd Time Data Quality Metric
01/02/2015212701/08/20151800Missing
Subject:
OLI/MET/M1 - Power Outage
DataStreams:olimetM1.b1
Description:
No data are available for the selected time range due to a prolonged power outage.
Measurements:olimetM1.b1:
  • PWD 1 minute mean visibility(pwd_mean_vis_1min)
  • temp_std
  • cmh_sat_vapor_pressure
  • Wind speed vector mean(wspd_vec_mean)
  • pwd_pw_code_1hr
  • dew_point_std
  • Humidity, relative, at 2-m height, 1-min avg(rh_mean)
  • cmh_temp
  • pwd_err_code
  • logger_volt
  • rh_std
  • pwd_cumul_snow
  • cmh_dew_point
  • Wind direction vector mean(wdir_vec_mean)
  • cmh_vapor_pressure
  • dew_point_mean
  • logger_temp
  • Temperature mean(temp_mean)
  • pwd_cumul_rain
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • pwd_pw_code_inst
  • trh_err_code
  • pwd_pw_code_15min
  • vapor_pressure_std
  • wdir_vec_std
  • PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
  • PWD 10 minute mean visibility(pwd_mean_vis_10min)
  • cmh_rh
  • Atmospheric pressure(atmos_pressure)
  • Vapor pressure mean, calculated(vapor_pressure_mean)


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DQRID : D151102.5
Start DateStart TimeEnd DateEnd Time Data Quality Metric
09/09/2015102910/22/20150000Incorrect
Subject:
OLI/MET/M1 - Noisy (and missing) CMH data
DataStreams:olimetM1.b1
Description:
The chilled mirror hygrometer data became noisy after self-checks during this period. Data 
are missing between 10/16 and 10/21 for service and calibration checks. The instrument 
was returned to service following calibration checks and minor connection repairs.
Measurements:olimetM1.b1:
  • cmh_temp
  • cmh_rh
  • cmh_sat_vapor_pressure
  • cmh_dew_point
  • cmh_vapor_pressure


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DQRID : D151111.10
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/08/2015200511/08/20152008Incorrect
11/08/2015223411/08/20152238Incorrect
Subject:
OLI/MET/M1 - Chilled mirror hygrometer data spikes due to generator maintenance
DataStreams:olimetM1.b1
Description:
During this time, the chilled mirror hygrometer data spiked due to power generator 
maintenance.
Measurements:olimetM1.b1:
  • cmh_temp
  • cmh_rh
  • cmh_sat_vapor_pressure
  • cmh_dew_point
  • cmh_vapor_pressure


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DQRID : D151111.11
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/08/2015234711/09/20151853Missing
Subject:
OLI/MET/M1 - Wind data missing following generator maintenance
DataStreams:olimetM1.b1
Description:
Following generator maintenance, the wind sensor stopped reporting wind data. 
Communication was reestablished following a configuration check.
Measurements:olimetM1.b1:
  • wdir_vec_std
  • Wind speed vector mean(wspd_vec_mean)
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • Wind direction vector mean(wdir_vec_mean)


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DQRID : D151111.9
Start DateStart TimeEnd DateEnd Time Data Quality Metric
08/01/2015181811/09/20151856Does not affect quality
Subject:
OLI/MET/M1 - Present weather detector backscatter warning
DataStreams:olimetM1.b1
Description:
During this time, the present weather detector intermittently indicated a backscatter 
warning. A routine lens cleaning eliminated the backscatter. Data do not appear to be 
affected.
Measurements:olimetM1.b1:
  • PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
  • PWD 10 minute mean visibility(pwd_mean_vis_10min)
  • PWD 1 minute mean visibility(pwd_mean_vis_1min)
  • pwd_err_code
  • pwd_cumul_snow
  • pwd_cumul_rain
  • pwd_pw_code_inst
  • pwd_pw_code_1hr
  • pwd_pw_code_15min


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DQRID : D151218.14
Start DateStart TimeEnd DateEnd Time Data Quality Metric
11/13/2015184005/11/20162106Does not affect quality
Subject:
OLI/MET/M1 - Intermittent wind data loss
DataStreams:olimetM1.b1
Description:
Occasionally the wind speed data are missing and wind direction data drop to 0 due to an 
ongoing sensor circuitry problem. Only invalid data are missing.
Measurements:olimetM1.b1:
  • wdir_vec_std
  • Wind speed vector mean(wspd_vec_mean)
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • Wind direction vector mean(wdir_vec_mean)


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DQRID : D160524.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
05/10/2016224905/11/20162106Incorrect
Subject:
OLI/MET/M1 - Tower maintenance
DataStreams:olimetM1.b1
Description:
Scheduled tower maintenance caused incorrect or missing data during this time. All data 
except for atmospheric pressure and data logger diagnostics should not be used.
Measurements:olimetM1.b1:
  • PWD 1 minute mean visibility(pwd_mean_vis_1min)
  • cmh_sat_vapor_pressure
  • Wind speed vector mean(wspd_vec_mean)
  • temp_std
  • Humidity, relative, at 2-m height, 1-min avg(rh_mean)
  • pwd_pw_code_1hr
  • dew_point_std
  • cmh_temp
  • pwd_err_code
  • rh_std
  • pwd_cumul_snow
  • Wind direction vector mean(wdir_vec_mean)
  • cmh_dew_point
  • cmh_vapor_pressure
  • dew_point_mean
  • Temperature mean(temp_mean)
  • pwd_cumul_rain
  • pwd_pw_code_inst
  • trh_err_code
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • pwd_pw_code_15min
  • vapor_pressure_std
  • wdir_vec_std
  • PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
  • PWD 10 minute mean visibility(pwd_mean_vis_10min)
  • cmh_rh
  • Vapor pressure mean, calculated(vapor_pressure_mean)


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DQRID : D160614.7
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/07/2016215406/11/20162304Missing
Subject:
OLI/MET/M1 - Wind sensor communication failure
DataStreams:olimetM1.b1
Description:
Folllowing a power outage, wind sensor communications failed resulting in missing data.
Measurements:olimetM1.b1:
  • wdir_vec_std
  • Wind speed vector mean(wspd_vec_mean)
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • Wind direction vector mean(wdir_vec_mean)


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DQRID : D160708.13
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/17/2016155207/08/20161842Missing
Subject:
OLI/MET/M1 - Missing wind data
DataStreams:olimetM1.b1
Description:
Wind sensor lost its communication settings, resulting in missing data during this time.
Measurements:olimetM1.b1:
  • wdir_vec_std
  • Wind speed vector mean(wspd_vec_mean)
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • Wind direction vector mean(wdir_vec_mean)


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DQRID : D160711.2
Start DateStart TimeEnd DateEnd Time Data Quality Metric
07/10/2016222707/11/20161549Missing
Subject:
OLI/MET/M1 - Missing wind data
DataStreams:olimetM1.b1
Description:
A power interruption resulted in missing wind data during this time.
Measurements:olimetM1.b1:
  • wdir_vec_std
  • Wind speed vector mean(wspd_vec_mean)
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • Wind direction vector mean(wdir_vec_mean)


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DQRID : D170110.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
01/05/2017100001/08/20171200Does not affect quality
Subject:
OLI/M1 - Severe Storm
DataStreams:olimetM1.b1
Description:
The site lost power during a severe winter storm.  Operators on site were not able to get 
out and restart the generators to bring things back up until 1/7/2017.  Most of the 
instruments were brought up at this time, but some problems remained until 1/8/2017
Measurements:olimetM1.b1:
  • qc_dew_point_mean
  • qc_cmh_temp
  • qc_wdir_vec_mean
  • Wind speed vector mean(wspd_vec_mean)
  • pwd_pw_code_1hr
  • dew_point_std
  • East longitude(lon)
  • cmh_temp
  • qc_pwd_mean_vis_1min
  • qc_rh_mean
  • rh_std
  • qc_temp_mean
  • qc_pwd_mean_vis_10min
  • qc_cmh_vapor_pressure
  • qc_trh_err_code
  • qc_pwd_pw_code_15min
  • cmh_vapor_pressure
  • dew_point_mean
  • Temperature mean(temp_mean)
  • pwd_pw_code_inst
  • qc_wspd_arith_mean
  • pwd_pw_code_15min
  • qc_pwd_precip_rate_mean_1min
  • PWD 1 minute mean precipitation rate(pwd_precip_rate_mean_1min)
  • wdir_vec_std
  • vapor_pressure_std
  • qc_cmh_dew_point
  • Atmospheric pressure(atmos_pressure)
  • qc_pwd_cumul_snow
  • PWD 1 minute mean visibility(pwd_mean_vis_1min)
  • cmh_sat_vapor_pressure
  • temp_std
  • qc_logger_volt
  • qc_vapor_pressure_mean
  • Humidity, relative, at 2-m height, 1-min avg(rh_mean)
  • time_offset
  • North latitude(lat)
  • pwd_err_code
  • qc_pwd_pw_code_1hr
  • qc_pwd_cumul_rain
  • logger_volt
  • pwd_cumul_snow
  • qc_cmh_rh
  • Wind direction vector mean(wdir_vec_mean)
  • cmh_dew_point
  • qc_atmos_pressure
  • logger_temp
  • qc_wspd_vec_mean
  • pwd_cumul_rain
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • trh_err_code
  • PWD 10 minute mean visibility(pwd_mean_vis_10min)
  • cmh_rh
  • base_time
  • qc_cmh_sat_vapor_pressure
  • time
  • Vapor pressure mean, calculated(vapor_pressure_mean)
  • Altitude above mean sea level(alt)
  • qc_logger_temp
  • qc_pwd_pw_code_inst


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