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contributor authorKearns, Edward J.
contributor authorRossby, H. Thomas
date accessioned2017-06-09T17:20:12Z
date available2017-06-09T17:20:12Z
date copyright1993/08/01
date issued1993
identifier issn0739-0572
identifier otherams-834.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4226622
description abstractThe glass-pipe technology used for RAFOS floats is applied to the monitoring of convection in deep mixed layers. The velocity of a vertical current is estimated from the relationship between the drag force exerted on a float by the vertical current and the buoyancy force induced by the float's resultant displacement from hydrostatic equilibrium. Tests conducted in the winters of 1990 and 1991 in the 18°C waters of the northwestern Sargasso Sea reveal definite convective events. Vertical velocities of both upwelling and downwelling plumes are estimated to approach maxima nearing 0.05 m s?1, with durations of up to 2 h. One float that crossed the Gulf Stream and entered the Newfoundland Basin showed evidence of very active vertical currents in the near-surface waters with maximum velocities greater than 0.09 m s?1.
publisherAmerican Meteorological Society
titleA Simple Method for Measuring Deep Convection
typeJournal Paper
journal volume10
journal issue4
journal titleJournal of Atmospheric and Oceanic Technology
identifier doi10.1175/1520-0426(1993)010<0609:ASMFMD>2.0.CO;2
journal fristpage609
journal lastpage617
treeJournal of Atmospheric and Oceanic Technology:;1993:;volume( 010 ):;issue: 004
contenttypeFulltext


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