Data Quality Reports for Session: 143655 User: kirstie Completed: 07/12/2012

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D011119.2NSA/METTWR/C1 - Met Tower Data Incorrect During Calibrations/ChangeoutsnsamettwrC1.b1, nsamettwrC1.a1
D020402.2NSA/METTWR/C1 - C1 SPURIOUS INFORMATION IN DATA HEADERnsamettwrC1.b1
D020402.3NSA/METTWR/C1 - C1 WIND SPEED DATA QUESTIONABLEnsamettwrC1.b1, nsamettwrC1.a1
D020402.4NSA/METTWR/C1 - C1 WIND DIRECTION DATA SUSPECTnsamettwrC1.b1, nsamettwrC1.a1


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.b1, nsamettwrC1.a1
Description:
Met Tower Data was incorrect during this period while sensor changeouts and calibrations 
were accomplished.
Measurements:nsamettwrC1.a1:
  • Maximum Wind Direction(wind_dir_max)
  • Mean Vapor Pressure(vap_pres_mean)
  • wind_spd_sd
  • Maximum Vapor Pressure(vap_pres_max)
  • Mean Dew Point Temperature(dew_pt_temp_mean)
  • dew_pt_temp_sd
  • relh_sd
  • win_spd_out_of_range_error
  • temp_out_of_range_error
  • dew_pt_temp_out_of_range_error
  • temp_hardware_error
  • Temperature minimum(temp_min)
  • vap_pres_out_of_range_error
  • Temperature maximum(temp_max)
  • Relative humidity maximum(relh_max)
  • Maximum Dew Point Temperature(dew_pt_temp_max)
  • win_dir_out_of_range_error
  • vap_pres_sd
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • Relative humidity minimum(relh_min)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • Minimum Wind Speed(wind_spd_min)
  • wind_dir_sd
  • Mean Wind Speed(wind_spd_mean)
  • temp_sd
  • Minimum Wind Direction(wind_dir_min)
  • relh_out_of_range_error
  • Mean Air Temperature or Hardware Error(temp_mean)
  • Minimum Dew Point Temperature(dew_pt_temp_min)
  • Minimum Vapor Pressure(vap_pres_min)
  • Relative humidity mean(relh_mean)
  • Maximum Wind Speed(wind_spd_max)
  • dew_pt_hardware_error
nsamettwrC1.b1:
  • Maximum Wind Speed(wind_spd_max)
  • Mean Wind Speed(wind_spd_mean)
  • Mean Dew Point Temperature(dew_pt_temp_mean)
  • temp_hardware_error
  • dew_pt_temp_out_of_range_error
  • Temperature maximum(temp_max)
  • dew_pt_temp_sd
  • vap_pres_sd
  • Mean Air Temperature or Hardware Error(temp_mean)
  • Relative humidity mean(relh_mean)
  • Minimum Vapor Pressure(vap_pres_min)
  • relh_sd
  • Temperature minimum(temp_min)
  • Minimum Dew Point Temperature(dew_pt_temp_min)
  • wind_spd_sd
  • temp_out_of_range_error
  • Maximum Vapor Pressure(vap_pres_max)
  • Maximum Wind Direction(wind_dir_max)
  • Minimum Wind Direction(wind_dir_min)
  • Minimum Wind Speed(wind_spd_min)
  • wind_dir_out_of_range_error
  • relh_out_of_range_error
  • Relative humidity maximum(relh_max)
  • Relative humidity minimum(relh_min)
  • dew_pt_hardware_error
  • wind_spd_out_of_range_error
  • temp_sd
  • Mean Vapor Pressure(vap_pres_mean)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
  • wind_dir_sd
  • vap_pres_out_of_range_error
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • Maximum Dew Point Temperature(dew_pt_temp_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:
  • 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.b1, nsamettwrC1.a1
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:
  • Minimum Wind Speed(wind_spd_min)
  • wind_spd_sd
  • Mean Wind Speed(wind_spd_mean)
  • Maximum Wind Speed(wind_spd_max)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)
nsamettwrC1.b1:
  • Maximum Wind Speed(wind_spd_max)
  • wind_spd_out_of_range_error
  • Mean Wind Speed(wind_spd_mean)
  • wind_spd_sd
  • Minimum Wind Speed(wind_spd_min)
  • Vector-averaged Wind Speed(wind_spd_vec_avg)

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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.b1, nsamettwrC1.a1
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_dir_sd
  • win_spd_out_of_range_error
  • Minimum Wind Direction(wind_dir_min)
  • Maximum Wind Direction(wind_dir_max)
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • win_dir_out_of_range_error
nsamettwrC1.b1:
  • wind_dir_out_of_range_error
  • wind_dir_sd
  • Vector-averaged Wind Direction(wind_dir_vec_avg)
  • Maximum Wind Direction(wind_dir_max)
  • Minimum Wind Direction(wind_dir_min)

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