The distribution of diurnal sea surface warming events in the western Sargasso Sea.

Cornillon, Peter and Stramma, Lothar (1985) The distribution of diurnal sea surface warming events in the western Sargasso Sea. Open Access Journal of Geophysical Research: Oceans, 90 (C6). p. 11811. DOI 10.1029/JC090iC06p11811.

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Abstract

Large diurnal sea surface warming exceeding 1°C is common in the western North Atlantic Ocean and is often of large horizontal extent. These events correlate closely with very light winds and high insolation. In the area investigated, 17°–40°N and 55°–80°W, the largest warming is found in the western portion of the ridge associated with the Azores-Bermuda high, where the lowest wind speeds are observed. The distribution of warming events shows that the largest number occur between June and August, when insolation is highest and percent cloud cover and wind speed are low. The most probable latitude of warming events moves north from approximately 25°N in spring to near 30°N in summer, a shift similar to that seen in the minimum of the climatological winds. Local areas have a probability as high as 30% for diurnal warming in excess of 1°C in the summer. The net heat flux into the ocean, calculated by using monthly mean values for low latitudes in the summer, excluding diurnal warming events, is biased consistently high by as much as 5 W/m2 relative to the same values calculated with warming events included.

Document Type: Article
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-PO Physical Oceanography
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1029/JC090iC06p11811
ISSN: 2169-9275
Date Deposited: 19 Apr 2016 10:32
Last Modified: 26 Feb 2018 13:04
URI: http://oceanrep.geomar.de/id/eprint/32107

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