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Passive microwave measurements of temperature and salinity in coastal zonesExperimental methods and results from the maritime remote sensing (MARSEN) experiments using dual frequency microwave radiometer detecting systems on board aircraft are described. The radiometers were operated at 1.43 and 2.65 GHz and flown above U.S. Atlantic coastal areas, Chesapeake Bay, around Puerto Rico, and over the German Bight. The advanced switched radiometers used were configured to be independent of gain variations and errors originating from front-end losses and determined the absolute brightness temperatures to within a few tenths Kelvin. Corrections to the observed brightness temperature of the ocean are analytically defined, including accounts made for roughness, the cosmic background radiation, and the solar radio source. The coastal flight data for salinity gradients and surface temperatures were compared with sea truth measured from ships and found to be accurate to within 1 C and 1 pph.
Document ID
19820055687
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Blume, H.-J. C.
(NASA Langley Research Center Hampton, VA, United States)
Kendall, B. M.
(NASA Langley Research Center Antenna and Microwave Research Branch, Hampton, VA, United States)
Date Acquired
August 10, 2013
Publication Date
July 1, 1982
Subject Category
Oceanography
Accession Number
82A39222
Distribution Limits
Public
Copyright
Other

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