Passive Microwave Spectrum Measurements of Atmospheric Water Vapor and Clouds

H. D. Toong Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge

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D. H. Staelin Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge

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Abstract

Ground-based microwave measurements of atmospheric emission at 5 wavelengths near 1 cm have enabled separate determinations of the water vapor and liquid water contents of the atmosphere. Observations during a frontal passage, in August 1966, yielded humidity estimates within 10% of conventional measurements, and cloud-type estimates compatible with the cloud structure of normal frontal systems.

Abstract

Ground-based microwave measurements of atmospheric emission at 5 wavelengths near 1 cm have enabled separate determinations of the water vapor and liquid water contents of the atmosphere. Observations during a frontal passage, in August 1966, yielded humidity estimates within 10% of conventional measurements, and cloud-type estimates compatible with the cloud structure of normal frontal systems.

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