SRRL Outdoor Spectral Data LI-COR LI-1800 Spectroradiometers are collecting spectral data from 300 to 1100nm, every 5 minutes during the day.
The AOCS is generating spectral data from 300 to 4000nm, every 60 seconds when the AOCS parameter is less than 0.15.
LI-1800 Global Horizontal data is available from June 13, 2006 to Present.
LI-1800 Global 40-South data is available from January 24, 2001 to June 13, 2006.
LI-1800 Direct Normal data is available from April 30, 2001 to August 3, 2003.
AOCS Direct Normal data is available from October 19, 2001 to Present.
Global Horizontal/40-South LI-1800 (S/N PRS-456) information:
The instrument has 6nm spectral bandwidth and the detector is not temperature controlled.
The instrument was calibrated against NIST Standard of Spectral Irradiance F597 on April 7, 2008.
Measurements are made using the 1800-10 Quartz Fiber Optic Probe (w/o remote cosine receptor) and the fiber end is inserted into a 5o view limiting tube (with window), which is mounted on a Sci-Tec tracker.