DQRID : D040229.2
Start DateStart TimeEnd DateEnd Time
02/20/2004130003/03/20041300
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Subject:
SGP/SIRS/E21 - Shadowband Misalignment
DataStreams:sgpsirsE21.00, sgpsirsE21.b1, sgpsirs20sE21.a0
Description:
The NIP reported values close to zero and downwelling shortwave global and diffuse were 
equivalent due to tracker failure.  

Maintenance replaced tracker 2/27, but couldn't replace instruments until 03/02 2000 GMT 
due to bird poop contamination.
Suggestions: 
Disregard this data.
Measurements:sgpsirs20sE21.a0:
  • Instantaneous direct normal shortwave irradiance, pyrheliometer thermopile
    voltage(inst_direct_normal)
  • Instantaneous uncorrected downwelling shortwave diffuse, shaded pyranometer
    thermopile voltage(inst_diffuse)
more
sgpsirsE21.00:
  • (Raw data stream - documentation not supported)
more
sgpsirsE21.b1:
  • Downwelling shortwave diffuse hemispheric irradiance, pyranometer, maxima(down_short_diffuse_hemisp_max)
  • Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
  • Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
  • Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyrgeometer, Minima(down_short_diffuse_hemisp_min)
  • Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyranometer, Standard
    Deviation(down_short_diffuse_hemisp_std)
  • Shortwave direct normal irradiance, pyrheliometer, minima(short_direct_normal_min)
more

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