Abstract
Simple bulk transfer formulas and marine meteorological data (1956–1962) from the Japanese Antarctic Expedition ship Sōya were used to examine the latent and sensible heat loss by the ocean between southern Africa and Enderby Land, Antarctica, in the summer. For a limited ocean region centered near 67°S, 41°E average January values of the oceanic latent and sensible heat loss were found to be 27.5 and 11.5 cal cm−2 day−1, respectively. The magnitude of the heat fluxes near the antarctic coast varied markedly with prevailing wind direction ranging from an average daily total oceanic heat loss of 70 cal cm−2 with prolonged southwesterly winds to a heat gain of 35 cal cm−2 with winds persisting between north and east. Examination of the diurnal variation of both latent and sensible heat fluxes in antarctic coastal waters near 41°E revealed a maximum oceanic heat loss approximately nine hours before local midday and a minimum in the late afternoon. The twelve traverses (six south-bound, six northbound) between Cape Town and Antarctica were used to construct average meridional profiles of the heat fluxes.
Published Version
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