What causes the location of the air-sea turbulent heat flux maximum over the Labrador Sea?
Moore, G. W. K.
Pickart, Robert S.
Renfrew, Ian A.
MetadataShow full item record
KeywordAir-sea interaction; Oceanic convection; Extratropical cyclones; Flow distortion; Polar meterorology
The Labrador Sea is a region of climatic importance as a result of the occurrence of oceanic wintertime convection, a process that is integral to the Atlantic Meridional Overturning Circulation. This process requires large air-sea heat fluxes that result in a loss of surface buoyancy, triggering convective overturning of the water column. The Labrador Sea wintertime turbulent heat flux maximum is situated downstream of the ice edge, a location previously thought to be causal. Here we show that there is considerable similarity in the characteristics of the regional mean atmospheric circulation and high heat flux events over the Labrador Sea during early winter, when the ice is situated to the north, and midwinter, when it is near the region of maximum heat loss. This suggests that other factors, including the topography of the nearby upstream and downstream landmasses, contribute to the location of the heat flux maximum.
Author Posting. © American Geophysical Union, 2014. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 41 (2014): 3628–3635, doi:10.1002/2014GL059940.
Showing items related by title, author, creator and subject.
Evaluation of the National Oceanic and Atmospheric Administration/Coupled-Ocean Atmospheric Response Experiment (NOAA/COARE) air-sea gas transfer parameterization using GasEx data Hare, Jeffrey E.; Fairall, Christopher W.; McGillis, Wade R.; Edson, James B.; Ward, Brian; Wanninkhof, Rik (American Geophysical Union, 2004-07-16)During the two recent GasEx field experiments, direct covariance measurements of air-sea carbon dioxide fluxes were obtained over the open ocean. Concurrently, the National Oceanic and Atmospheric Administration/Coupled-Ocean ...
Gerbi, Gregory P.; Trowbridge, John H.; Edson, James B.; Plueddemann, Albert J.; Terray, Eugene A.; Fredericks, Janet J. (American Meteorological Society, 2008-05)This study makes direct measurements of turbulent fluxes in the mixed layer in order to close heat and momentum budgets across the air–sea interface and to assess the ability of rigid-boundary turbulence models to predict ...
Long–term evolution and coupling of the boundary layers in the Stratus Deck Regions of the eastern Pacific (STRATUS) data report Vallee, Charlotte; Huang, Kelan; Weller, Robert A. (Woods Hole Oceanographic Institution, 2002-08)The surface mooring component of the CLIVAR Long Term Evolution and Coupling of the Boundary Layers in the Stratus Deck Regions study (STRATUS) took place from October 2000 in the eastern tropical Pacific. As part of the ...