Data Quality Reports for Session: 140464 User: ak10j Completed: 02/09/2012

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D100203.2NSA/TWR/C1 - 40m level data incorrectnsatwrC1.b1
D110722.3NSA/MET/C1 - 20m T/RH sensor failurensatwrC1.b1


DQRID : D100203.2
Start DateStart TimeEnd DateEnd Time
12/09/2009231607/18/20110002
Subject:
NSA/TWR/C1 - 40m level data incorrect
DataStreams:nsatwrC1.b1
Description:
A power distribution problem required us to turn off the 50V DC power to the 40m level.  
This shutdown the T/RH probe and the heating of the ultrasonic sensor.  The wind data is 
useful at times when there is no icing present.  This DQR is a follow on to D091201.2 that 
was closed when the 20m level T/RH probe was replaced.
Measurements:nsatwrC1.b1:
  • wdir_vec_std
  • rh_std
  • Wind direction, vector, lower, 1-min avg(wdir_vec_mean)
  • vapor_pressure_mean
  • vapor_pressure_std
  • trh_err_code
  • Wind speed, lower, 1-min avg(wspd_arith_mean)
  • dew_point_mean
  • Mean Air Temperature or Hardware Error(temp_mean)
  • temp_std
  • Wind speed vector mean(wspd_vec_mean)
  • dew_point_std
  • Humidity, relative, at 2-m height, 1-min avg(rh_mean)

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DQRID : D110722.3
Start DateStart TimeEnd DateEnd Time
11/21/2010110007/20/20111823
Subject:
NSA/MET/C1 - 20m T/RH sensor failure
DataStreams:nsatwrC1.b1
Description:
The 20m temperature and RH were erratic and incorrect resulting in incorrect vapor 
pressure calculations.  The sensor was damaged by voltage spikes on the power lines.
Measurements:nsatwrC1.b1:
  • dew_point_mean
  • rh_std
  • Mean Air Temperature or Hardware Error(temp_mean)
  • temp_std
  • vapor_pressure_mean
  • vapor_pressure_std
  • Humidity, relative, at 2-m height, 1-min avg(rh_mean)
  • dew_point_std
  • trh_err_code

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