Solar Infrared Photometer

J. D. Spinhirne NASA/Goddard Space Flight Center, Greenbelt, MD 20171

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M. G. Strange NASA/Goddard Space Flight Center, Greenbelt, MD 20171

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L. R. Blaine NASA/Goddard Space Flight Center, Greenbelt, MD 20171

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Abstract

A sun photometer which operates at five wavelengths in the near infrared between 1.0 and 4.0 μm has been developed. The instrument is a manually operated, fitter wheel design and has principal applications for atmospheric aerosol studies. The wavelength filters were selected at bands with minimal gaseous absorption. A modified Langley analysis which accounts for residual gaseous absorption is employed for the instrument calibration. Calibration and stability results for the instrument are presented.

Abstract

A sun photometer which operates at five wavelengths in the near infrared between 1.0 and 4.0 μm has been developed. The instrument is a manually operated, fitter wheel design and has principal applications for atmospheric aerosol studies. The wavelength filters were selected at bands with minimal gaseous absorption. A modified Langley analysis which accounts for residual gaseous absorption is employed for the instrument calibration. Calibration and stability results for the instrument are presented.

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