BSC Instrument Descriptions and Histories


Model
Measurement
Notes (below)
Units
Install
Date
Removal
Date
Current
SN
Current
CF
PSP Global Horizontal W/m2 11/26/1985 - 25821F3 110.86 W/m2/mV
Total Hemispheric shortwave irradiance as measured by an Eppley Laboratory, Inc. Model PSP (Precision Spectral Pyranometer) with calibration factor traceable to the World Radiometric Reference (WRR).
PSP Diffuse SB W/m2 11/26/1985 - 17860F3 142.65 W/m2/mV
Diffuse (Sky) shortwave irradiance measured by a PSP mounted under a manually-adjusted shadow band. Raw Data are NOT adjusted for the presence of the shadow band (a 10% to 18% increase is needed, depending on solar declination for the day of data). Note: Data prior to January 1995 is CORRECTED for the shadowband.
NIP Direct Normal W/m2 11/26/1985 12/31/2005 17664E6 117.92 W/m2/mV
Direct (Beam) shortwave irradiance as measured by an Eppley Laboratory, Inc. Model NIP (Normal Incidence Pyrheliometer) mounted in an automatic sun-following tracker. Annual NIP calibrations traceable to WRR.
Notes:
  • Data Sample rate is 10-sec, with 5-min averages.
  • Raw data files were downloaded directly from Campbell Scientific CR-10 datalogger using PC208W.

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