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Some Geographical Variations of Terrestrial Radiation Measured by TIROS II

Elford G. AstlingUniversity of Wisconsin

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Lyle H. HornUniversity of Wisconsin

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Abstract

Infrared radiation observations made by TIROS II during 27 days between 26 November 1960 and 6 January 1961 are used to obtain mean latitudinal profiles of outgoing long-wave radiation. The mean profiles revealed an insufficient estimate of limb darkening in the data. Consequently, only subsatellite observations are used to obtain mean latitudinal profiles for oceanic and continental areas. The distinct differences which are noted between the land and ocean profiles are discussed. Finally, the means obtained from the TIROS II data are found to agree well with estimates of the terrestrial radiation based on theoretical considerations and indirect quantitative estimates.

Abstract

Infrared radiation observations made by TIROS II during 27 days between 26 November 1960 and 6 January 1961 are used to obtain mean latitudinal profiles of outgoing long-wave radiation. The mean profiles revealed an insufficient estimate of limb darkening in the data. Consequently, only subsatellite observations are used to obtain mean latitudinal profiles for oceanic and continental areas. The distinct differences which are noted between the land and ocean profiles are discussed. Finally, the means obtained from the TIROS II data are found to agree well with estimates of the terrestrial radiation based on theoretical considerations and indirect quantitative estimates.

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