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Sea-surface temperature and salinity mapping from remote microwave radiometric measurements of brightness temperatureA technique to measure remotely sea surface temperature and salinity was demonstrated with a dual frequency microwave radiometer system. Accuracies in temperature of 1 C and in salinity of part thousand for salinity greater than 5 parts per thousand were attained after correcting for the influence of extraterrestrial background radiation, atmospheric radiation and attenuation, sea-surface roughness, and antenna beamwidth. The radiometers, operating at 1.43 and 2.65 GHz, comprise a third-generation system using null balancing and feedback noise injection. Flight measurements from an aircraft at an altitude of 1.4 km over the lower Chesapeake Bay and coastal areas of the Atlantic Ocean resulted in contour maps of sea-surface temperature and salinity with a spatial resolution of 0.5 km.
Document ID
19790020692
Acquisition Source
Legacy CDMS
Document Type
Technical Publication (TP)
Authors
Hans-Juergen, C. B.
(NASA Langley Research Center Hampton, VA, United States)
Kendall, B. M.
(NASA Langley Research Center Hampton, VA, United States)
Fedors, J. C.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 3, 2013
Publication Date
December 1, 1977
Subject Category
Oceanography
Report/Patent Number
L-11763
NASA-TP-1077
Accession Number
79N28863
Funding Number(s)
PROJECT: RTOP 175-20-30-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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