DQRID : D000919.1
Start DateStart TimeEnd DateEnd Time
04/24/2000190005/08/20002359
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Subject:
SGP/SIRS/C1 - Reprocess: Apply -1 Multiplier to SW data
DataStreams:sgpsirsC1.a1
Description:
Magnitude of data is correct, however, 2 wires were crossed producing negative values for 
SW Global Down, SW Global Up, SW Direct Normal, and SW Diffuse Down.
Problem has been fixed at site.

Users of this data should multiply by -1 to get the correct values for SW Global Down, SW 
Global Up, SW Direct Normal, and SW Diffuse Down.
Suggestions: 
Data will be reprocessed
Measurements:sgpsirsC1.a1:
  • Down-welling unshaded pyranometer voltage(down_short_hemisp)
  • Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • 25 meter Upwelling Shortwave Hemispheric Irradiance, Pyranometer(up_short_hemisp)
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