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Abstract

Data were collected on board the RSV Aurora Australis in order to
investigate the difference between the skin sea surface temperahlre (SST) and the
bulk SST in the Southern Ocean. Bulk SST is the traditional sea surface
temperature measured in situ by ship and buoy based thermometers and is
representative of the upper few metres of the ocean. Thermal infrared radiometers
will measure the skin SST, the temperahlre of the upper few microns less than 0.05
mm (Maul 1985), of the ocean surface. Previous research has shown that given
typical conditions over tropical and temperate oceans, the skin SST is 0.1 - 0.5 °C
cooler on average than the bulk SST (Robinson et al. 1984). This temperature
difference ( ll.T = skin SST - bulk SST) is due mainly to the presence of a thermal
boundary layer (less than 1 mm thick) which is a consequence of evaporation from
the sea surface and the molecular conductive processes of heat transfer across the
air-sea interface (Robinson et al. 1984; Hepplewhite 1989).

Item Type:	Thesis - Unspecified
Authors/Creators:	Rapier, Clive Brent
Keywords:	Ocean temperature
Copyright Holders:	The Author
Additional Information:	Thesis (M.Sc.)--University of Tasmania, 1996. Includes bibliographical references (leaves 127-135)
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