Data Quality Reports for Session: 112347 User: koontz Completed: 06/05/2008

TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D021111.16NSA/SKYRAD/C1 - Shaded PIR data unreasonablensaskyrad60sC1.a1
D021111.3NSA/SKYRAD/C1 - Spikes in Unshaded PIR datansaskyrad60sC1.a1
D030510.2NSA/SKYRAD/C1 - IRT measurements during precipitation eventsnsaskyrad60sC1.a1
D990924.2NSA/SKYRAD/C1 - IRT insufficiently heatednsaskyrad60sC1.a1


DQRID : D021111.16
Start DateStart TimeEnd DateEnd Time
12/11/1998222512/11/19982235
12/15/1998180012/15/19981810
12/16/1998181012/16/19981815
02/16/1999194502/16/19992010
02/17/1999214502/17/19992200
03/02/1999182503/02/19991835
03/09/1999183003/09/19991840
03/10/1999034003/10/19990350
Subject:
NSA/SKYRAD/C1 - Shaded PIR data unreasonable
DataStreams:nsaskyrad60sC1.a1
Description:
There was  a 10-25 W/m2 spike in data probably due to operator working around instrument 
or cleaning it.
Measurements:nsaskyrad60sC1.a1:
  • PIR shaded maximum(pirs_max)
  • PIR shaded standard deviation(pirs_sd)
  • PIR shaded minimum(pirs_min)
  • PIR shaded mean(pirs_mean)

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DQRID : D021111.3
Start DateStart TimeEnd DateEnd Time
12/01/1998220012/01/19982359
01/28/1999014501/28/19990200
03/02/1999182003/02/19991835
03/10/1999174003/10/19991750
03/13/1999174503/13/19991755
Subject:
NSA/SKYRAD/C1 - Spikes in Unshaded PIR data
DataStreams:nsaskyrad60sC1.a1
Description:
There was  a 10-25 W/m2 spike in data probably due to operator working around instrument 
or cleaning it.
Measurements:nsaskyrad60sC1.a1:
  • PIR1 unshaded standard deviation(pir1_sd)
  • PIR1 unshaded minimum(pir1_min)
  • PIR1 unshaded maximum(pir1_max)
  • PIR1 unshaded mean(pir1_mean)

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DQRID : D030510.2
Start DateStart TimeEnd DateEnd Time
02/14/1998233003/03/20032359
Subject:
NSA/SKYRAD/C1 - IRT measurements during precipitation events
DataStreams:nsaskyrad60sC1.a1
Description:
The IRT measurement of sky/cloud temperature was in question during precipitation events 
because rain or snow could accumulate in the upward-pointed lens barrel. This was 
corrected by reorienting the IRT to measure the sky temperature as reflected by a gold mirror.
Measurements:nsaskyrad60sC1.a1:
  • Sky Infra-Red Temperature(sky_ir_temp)
  • Standard Deviation of Sky Infra Red Temperature(sky_ir_temp_std)
  • Sky Infra Red Temperature Maxima(sky_ir_temp_max)
  • Sky Infra Red Temperature Minima(sky_ir_temp_min)

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DQRID : D990924.2
Start DateStart TimeEnd DateEnd Time
02/14/1998013012/21/20001925
Subject:
NSA/SKYRAD/C1 - IRT insufficiently heated
DataStreams:nsaskyrad60sC1.a1
Description:
IRT had insufficient heating to maintain an internal reference temperature above 0 degrees 
C. Measurements of sky temperature were over-estimated when instrument was below 
freezing.
Measurements:nsaskyrad60sC1.a1:
  • IRT1 maximum(irt1_max)
  • IRT1 standard deviation(irt1_sd)
  • IRT1 minimum(irt1_min)
  • IRT1 mean(irt1_mean)

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