Strategy for solar-ultraviolet instrument comparisons

Edward A. Early; James Walker; Ambler E. Thompson

doi:10.1117/12.186620

14 September 1994 Strategy for solar-ultraviolet instrument comparisons

Edward A. Early, James Walker, Ambler E. Thompson

Proceedings Volume 2282, Ultraviolet Technology V; (1994) https://doi.org/10.1117/12.186620
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

Several different monitoring networks using spectroradiometers are being developed to detect changes in the solar ultraviolet irradiance at the surface of the earth due to stratospheric ozone depletion. To ensure the accurate, long-term measurements that are required from these networks, a strategy for instrument intercomparisons is necessary. This involves the characterization of the instrument parameters which affect measurements of solar ultraviolet irradiance, particularly the linearity, wavelength accuracy, irradiance responsivity, slit- scattering function, and cosine response of the instrument. We have developed laboratory techniques for determining each of these parameters and have used them to characterize a specific spectroradiometer. These techniques and results are being used to develop a strategy for a planned field intercomparison of instruments from several monitoring networks.

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Edward A. Early, James Walker, and Ambler E. Thompson "Strategy for solar-ultraviolet instrument comparisons", Proc. SPIE 2282, Ultraviolet Technology V, (14 September 1994); https://doi.org/10.1117/12.186620

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KEYWORDS

Ultraviolet radiation

Lamps

Sensors

Calibration

Integrating spheres

Ozone

Signal detection

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