Measurements of Microwave Emission from a Foam-Covered, Wind-Driven Sea

Autor:	J. Conaway, W. Nordberg, Duncan B. Ross, T. Wilheit
Rok vydání:	1971
Předmět:	Atmospheric Science Brightness Radiometer Sea foam Meteorology Beam (nautical) Brightness temperature Surface roughness Environmental science Atmospheric sciences Wind speed Nadir (topography)
Zdroj:	Journal of the Atmospheric Sciences. 28:429-435
ISSN:	1520-0469 0022-4928
DOI:	10.1175/1520-0469(1971)028<0429:momefa>2.0.co;2
Popis:	Measurements were made from aircraft of the 1.55-cm microwave emission from the North Sea and North Atlantic at surface wind speeds ranging from less than 5 to 25 m sec−1. Brightness temperatures in the nadir direction increased almost linearly with wind speed from 7 to 25 m sec−1 at a rate of about 1.2C (m sec−1)−1. At 70° from nadir the rate was 1.8C (m sec−1)−1. This increase was directly proportional to the occurrence of white water on the sea surface. At wind speeds
Databáze:	OpenAIRE
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