Solar radiation based calibration of a short-wave ir radiometer and a comparison of exoatmospheric solar spectral irradiance data sets

Edward Zalewski; Christopher Cattrall

doi:10.1117/12.619699

22 August 2005 Solar radiation based calibration of a short-wave ir radiometer and a comparison of exoatmospheric solar spectral irradiance data sets

Edward Zalewski, Christopher Cattrall

Author Affiliations +

Proceedings Volume 5882, Earth Observing Systems X; 588204 (2005) https://doi.org/10.1117/12.619699
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

We have performed an absolute calibration comparison between the Sun and a NIST-calibrated spectral irradiance standard lamp. The comparison at seven bands ranging from 1.2 to 2.3 μm was made using a highly stable Short Wave IR Transfer Radiometer. The experiment consisted of laboratory and outdoor measurements of an irradiated diffusely reflecting panel. Outdoors, simultaneous atmospheric transmittance measurements were also obtained in order to correct for atmospheric effects. The results were used to compare three absolute exo-atmospheric solar spectral irradiance data sets currently used in various remote sensing applications to a NIST traceable radiometric calibration. The comparison with the limited set of recently produced SORCE-SIM data showed almost no differences at 1.2 and 1.6 μm; however, the comparison with three other data sets showed larger differences.

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Edward Zalewski and Christopher Cattrall "Solar radiation based calibration of a short-wave ir radiometer and a comparison of exoatmospheric solar spectral irradiance data sets", Proc. SPIE 5882, Earth Observing Systems X, 588204 (22 August 2005); https://doi.org/10.1117/12.619699

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