DQRID : D060724.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
05/08/2005000008/05/20050000Does not affect quality
05/08/2001000008/05/20010000Does not affect quality
05/08/2004000008/05/20040000Does not affect quality
05/08/2002000008/05/20020000Does not affect quality
05/08/2006000008/05/20060000Does not affect quality
05/08/2003000008/05/20030000Does not affect quality
05/08/2000000008/05/20000000Does not affect quality
more
Subject:
NSA/SKYRAD/C2 - Summer solstice shading of radiometers
DataStreams:nsaskyrad60sC2.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):
Instr   Obstruction   AzStart   AzEnd
NIP     rad table     356       17
PSP     mfrsr         341       353

Note: There are a number of objects near the NW,N and NE horizon that may affect sunrise 
data near the summer soltice.
Suggestions: 
Avoid NIP and PSP data during the periods noted above.
Measurements:nsaskyrad60sC2.b1:
  • down_short_hemisp_max
  • psps_max
  • psp1_mean
  • short_direct_normal
  • down_short_hemisp_std
  • short_direct_normal_max
  • nip_min
  • short_direct_normal_std
  • nip_mean
  • down_short_hemisp
  • psps_sd
  • psps_mean
  • psp1_min
  • psps_min
  • psp1_sd
  • down_short_hemisp_min
  • short_direct_normal_min
  • nip_sd
  • nip_max
  • psp1_max
more

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