A global study of diurnal warming using satellite-derived sea surface temperature

Stuart-Menteth, Alice C., Robinson, Ian S. and Challenor, Peter G. (2003) A global study of diurnal warming using satellite-derived sea surface temperature Journal of Geophysical Research, 108, (C5), 3155-[16pp}. (doi:10.1029/2002JC001534).


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Ten years of global infrared satellite data from National Oceanic and Atmospheric Administration's advanced very high resolution radiometer are analyzed to investigate global variations of diurnal warming. Daily nighttime sea surface temperatures (SSTs) are subtracted from adjacent daytime SSTs to give an estimate of diurnal warming (?Tday-night). The results reveal large regions in the tropics and midlatitudes that are frequently susceptible to diurnal warming each year. A strong seasonal pattern exists, dictated by the wind and solar insolation variability. A simple ?T regression model confirms that the observed warming is consistent with the right meteorological conditions of low winds and high insolation. The analysis also reveals how the spatial distribution and magnitude of ?T varies with the drift of the satellite orbit as it shifts from a local overpass time of 1400 to 1600. The results highlight the importance of the diurnal cycle for SST measurements and suggest the need for the diurnal cycle to be included in numerical models.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1029/2002JC001534
ISSNs: 0148-0227 (print)
Keywords: diurnal warming, sea surface temperature, satellite remote sensing, AVHRR, air-sea interaction
ePrint ID: 1308
Date :
Date Event
May 2003Published
Date Deposited: 16 Apr 2004
Last Modified: 17 Apr 2017 00:12
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/1308

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