Modeling the Surface Heat Flux Response to Long-Lived SST Anomalies in the North Atlantic

Power, S. B. and Kleeman, R. and Colman, R. A. and McAvaney, B. J. (1995) Modeling the Surface Heat Flux Response to Long-Lived SST Anomalies in the North Atlantic. Journal of Climate, 8 (9). pp. 2161-2180. ISSN 0894-8755


Abstract

An atmospheric general circulation model (AGCM), a simplified atmospheric model (SAM) of surface heat flux, and various idealized analytic models have been used to investigate the atmospheric response over the North Atlantic to SST anomalies, including a general cooling associated with a weakened thermohaline circulation. Latent heating dominates the surface heat flux response, while sensible heating plays an important secondary role. All three kinds of atmospheric models exhibit nonrestorative behavior away from the anomaly peak that is primarily associated with the advection of cooled air eastward. This simple picture is complicated in the AGCM by the fact that the winds weaken over the SST anomaly, which helps to moderate the response.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 05 Jan 2022 23:36
Last Modified: 05 Jan 2022 23:36
Uncontrolled Keywords: atmospheric circulation modelling; atmospheric model; atmospheric modelling; general circulation model; heat transfer; latent heat; sea surface temperature; SST anomalies; surface heat flux; temperature anomaly; thermohaline circulation
Fields of Research (2008): 04 Earth Sciences > 0401 Atmospheric Sciences > 040105 Climatology (excl.Climate Change Processes)
Fields of Research (2020): 37 EARTH SCIENCES > 3702 Climate change science > 370202 Climatology
Socio-Economic Objectives (2008): D Environment > 96 Environment > 9603 Climate and Climate Change > 960304 Climate Variability (excl. Social Impacts)
Socio-Economic Objectives (2020): 19 ENVIRONMENTAL POLICY, CLIMATE CHANGE AND NATURAL HAZARDS > 1905 Understanding climate change > 190502 Climate variability (excl. social impacts)
Identification Number or DOI: https://doi.org/10.1175/1520-0442(1995)008<2161:MTSHFR>2.0.CO;2
URI: http://eprints.usq.edu.au/id/eprint/44908

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