The Effect of Diurnal Sea Surface Temperature Warming on Climatological Air–Sea Fluxes

Diurnal sea surface warming affects the fluxes of latent heat, sensible heat, and upwelling longwave radiation. Diurnal warming most typically reaches maximum values of 3°C, although very localized events may reach 7°–8°C. An analysis of multiple years of diurnal warming over the global ice-free oce...

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Main Authors: Clayson, Carol Anne, Bogdanoff, Alec Setnor
Other Authors: Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Format: Article
Language:en_US
Published: American Meteorological Society 2013
Online Access:http://hdl.handle.net/1721.1/81285
https://orcid.org/0000-0002-0467-3785
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author Clayson, Carol Anne
Bogdanoff, Alec Setnor
author2 Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
author_facet Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences
Clayson, Carol Anne
Bogdanoff, Alec Setnor
author_sort Clayson, Carol Anne
collection MIT
description Diurnal sea surface warming affects the fluxes of latent heat, sensible heat, and upwelling longwave radiation. Diurnal warming most typically reaches maximum values of 3°C, although very localized events may reach 7°–8°C. An analysis of multiple years of diurnal warming over the global ice-free oceans indicates that heat fluxes determined by using the predawn sea surface temperature can differ by more than 100% in localized regions over those in which the sea surface temperature is allowed to fluctuate on a diurnal basis. A comparison of flux climatologies produced by these two analyses demonstrates that significant portions of the tropical oceans experience differences on a yearly average of up to 10 W m[superscript −2]. Regions with the highest climatological differences include the Arabian Sea and the Bay of Bengal, as well as the equatorial western and eastern Pacific Ocean, the Gulf of Mexico, and the western coasts of Central America and North Africa. Globally the difference is on average 4.45 W m[superscript −2]. The difference in the evaporation rate globally is on the order of 4% of the total ocean–atmosphere evaporation. Although the instantaneous, year-to-year, and seasonal fluctuations in various locations can be substantial, the global average differs by less than 0.1 W m[superscript −2] throughout the entire 10-yr time period. A global heat budget that uses atmospheric datasets containing diurnal variability but a sea surface temperature that has removed this signal may be underestimating the flux to the atmosphere by a fairly constant value.
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spelling mit-1721.1/812852022-09-28T19:18:56Z The Effect of Diurnal Sea Surface Temperature Warming on Climatological Air–Sea Fluxes Clayson, Carol Anne Bogdanoff, Alec Setnor Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Woods Hole Oceanographic Institution Bogdanoff, Alec Setnor Clayson, Carol Anne Diurnal sea surface warming affects the fluxes of latent heat, sensible heat, and upwelling longwave radiation. Diurnal warming most typically reaches maximum values of 3°C, although very localized events may reach 7°–8°C. An analysis of multiple years of diurnal warming over the global ice-free oceans indicates that heat fluxes determined by using the predawn sea surface temperature can differ by more than 100% in localized regions over those in which the sea surface temperature is allowed to fluctuate on a diurnal basis. A comparison of flux climatologies produced by these two analyses demonstrates that significant portions of the tropical oceans experience differences on a yearly average of up to 10 W m[superscript −2]. Regions with the highest climatological differences include the Arabian Sea and the Bay of Bengal, as well as the equatorial western and eastern Pacific Ocean, the Gulf of Mexico, and the western coasts of Central America and North Africa. Globally the difference is on average 4.45 W m[superscript −2]. The difference in the evaporation rate globally is on the order of 4% of the total ocean–atmosphere evaporation. Although the instantaneous, year-to-year, and seasonal fluctuations in various locations can be substantial, the global average differs by less than 0.1 W m[superscript −2] throughout the entire 10-yr time period. A global heat budget that uses atmospheric datasets containing diurnal variability but a sea surface temperature that has removed this signal may be underestimating the flux to the atmosphere by a fairly constant value. American Society for Engineering Education. National Defense Science and Engineering Graduate Fellowship United States. National Aeronautics and Space Administration. Graduate Student Researchers Program 2013-10-03T14:46:54Z 2013-10-03T14:46:54Z 2013-04 2012-10 Article http://purl.org/eprint/type/JournalArticle 0894-8755 1520-0442 http://hdl.handle.net/1721.1/81285 Clayson, Carol Anne, and Alec S. Bogdanoff. “The Effect of Diurnal Sea Surface Temperature Warming on Climatological Air–Sea Fluxes.” Journal of Climate 26, no. 8 (April 2013): 2546-2556. © 2013 American Meteorological Society https://orcid.org/0000-0002-0467-3785 en_US http://dx.doi.org/10.1175/JCLI-D-12-00062.1 Journal of Climate Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Meteorological Society American Meteorological Society
spellingShingle Clayson, Carol Anne
Bogdanoff, Alec Setnor
The Effect of Diurnal Sea Surface Temperature Warming on Climatological Air–Sea Fluxes
title The Effect of Diurnal Sea Surface Temperature Warming on Climatological Air–Sea Fluxes
title_full The Effect of Diurnal Sea Surface Temperature Warming on Climatological Air–Sea Fluxes
title_fullStr The Effect of Diurnal Sea Surface Temperature Warming on Climatological Air–Sea Fluxes
title_full_unstemmed The Effect of Diurnal Sea Surface Temperature Warming on Climatological Air–Sea Fluxes
title_short The Effect of Diurnal Sea Surface Temperature Warming on Climatological Air–Sea Fluxes
title_sort effect of diurnal sea surface temperature warming on climatological air sea fluxes
url http://hdl.handle.net/1721.1/81285
https://orcid.org/0000-0002-0467-3785
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