DQRID : D121029.1
Start DateStart TimeEnd DateEnd Time Data Quality Metric
06/04/2011050903/31/20122359Does not affect quality
more
Subject:
PGH/SKYRAD/M1 - Reprocessed: Incorrect calibrations
DataStreams:pghskyrad60sM1.b1, pghskyrad20sM1.a0
Description:
During the entire India deployment the Skyrad system was configured with incorrect 
calibration coefficients for the shortwave instruments. The program hadn't been updated since 
the previous deployment in the Azores.

The following instrument data were reprocessed with the following correction multipliers:

PIR1-DIR(down_long_hemisp1): OK, no correction required
PIR2-DIR(down_long_hemisp2): OK, no correction required
Diffuse 8-48 (down_short_diffuse): 116.95(correct)/120.91(incorrect) = .96725
NIP (short_direct_normal): 127.03(correct)/124.97(incorrect) = 1.01648
PSP-DS (down_short_hemsip): 111.29(correct)/108.48(incorrect) = 1.02590
IRT: calibration should be validated by instrument mentor (Vic Morris): mult=26, 
offset=173.2

Correct serial numbers:   
Diffuse 8-48 (down_short_diffuse): 34066
NIP (short_direct_normal): 34135E6
PSP-DS (down_short_hemsip): 33942F3

The data were recalibrated and reprocessed.  The corrected data were archived in February 
2013.
Suggestions: 
Use reprocessed data.
Measurements:pghskyrad60sM1.b1:
  • sky_ir_temp_max
  • sky_ir_temp_std
  • down_short_diffuse_hemisp
  • down_short_hemisp
  • short_direct_normal_min
  • down_short_hemisp_max
  • down_short_hemisp_std
  • short_direct_normal
  • sky_ir_temp_min
  • short_direct_normal_max
  • sky_ir_temp
  • down_short_diffuse_hemisp_max
  • down_short_diffuse_hemisp_std
  • down_short_diffuse_hemisp_min
  • short_direct_normal_std
  • down_short_hemisp_min
more
pghskyrad20sM1.a0:
  • inst_direct_normal
  • inst_sky_ir_signal
  • inst_diffuse
  • inst_global
more

Close this window