Data Quality Reports for Session: 101371 User: morris Completed: 08/30/2006


TABLE OF CONTENTS

DQR IDSubjectData Streams Affected
D060724.2NSA/SKYRAD/C1 - Summer solstice shading of radiometersnsaskyrad60sC1.b1


DQRID : D060724.2
Start DateStart TimeEnd DateEnd Time
05/08/1999000008/05/19990000
05/08/2000000008/05/20000000
05/08/2001000008/05/20010000
05/08/2002000008/05/20020000
05/08/2003000008/05/20030000
05/08/2004000008/05/20040000
05/08/2005000008/05/20050000
05/08/2006000008/05/20060000
Subject:
NSA/SKYRAD/C1 - Summer solstice shading of radiometers
DataStreams:nsaskyrad60sC1.b1
Description:
On and around the summer solstice, the NIP (Direct Normal shortwave measurement) and PSP 
(global hemispheic shortwave measurement) radiometers are shaded by other instruments or 
support structures.  Shading azimuths have been determined for this site.  The radiometer 
mentor suggests not using the data from the NIP and PSP radiometers when the sun is 
within the following azimuth bounds (typically from May 8th to August 5th of each year):
Instrmt Obstruction     AzStart     AzEnd     
NIP     rad table       346         358
NIP     met tower       13          15
PSP     mfrsr           6           16
Measurements:nsaskyrad60sC1.b1:
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Standard Deviation(short_direct_normal_std)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Maxima(down_short_hemisp_max)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer(down_short_hemisp)
  • NIP maximum(nip_max)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Standard
    Deviation(down_short_hemisp_std)
  • NIP standard deviation(nip_sd)
  • NIP minimum(nip_min)
  • PSP1 unshaded minimum(psp1_min)
  • PSP shaded maximum(psps_max)
  • Shortwave Direct Normal Irradiance, Pyrheliometer(short_direct_normal)
  • NIP mean(nip_mean)
  • PSP shaded minimum(psps_min)
  • Downwelling Shortwave Hemispheric Irradiance, Ventilated Pyrgeometer, Minima(down_short_hemisp_min)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Minima(short_direct_normal_min)
  • PSP shaded mean(psps_mean)
  • PSP1 unshaded maximum(psp1_max)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • PSP1 unshaded standard deviation(psp1_sd)
  • PSP shaded standard deviation(psps_sd)
  • PSP1 unshaded mean(psp1_mean)


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