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Remote sensing of atmospheric and surface temperatures with microwaves.Solids, liquids, and gases emit at microwave wavelengths measurable amounts of black-body thermal radiation. Receiver sensitivities readily approach 0.01 K, and permit accurate measurements of land, sea, and atmospheric temperatures. Sea and land temperature measurements must be corrected for the effects of surface emissivity, but these effects can often be measured or estimated. Observations near the 5 mm wavelength 02 resonances can yield atmospheric temperature profiles with an approximate accuracy of 2 K for altitudes 0-80 km. Such measurements from balloons and aircraft suggest that the planned earth-orbital satellite experiments will yield data valuable for numerical weather prediction. Ground-based radio telescopes and planetary-probes have yielded similar information about the surfaces and atmospheres of other planets.
Document ID
19730057258
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Staelin, D. H.
(MIT Cambridge, Mass., United States)
Date Acquired
August 7, 2013
Publication Date
January 1, 1972
Subject Category
Communications
Meeting Information
Meeting: Symposium on Temperature
Location: Washington, DC
Start Date: June 21, 1971
End Date: June 24, 1971
Accession Number
73A42060
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other

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