Heat and freshwater budgets in the Red Sea from direct observations at Bab el Mandeb

S. S. Sofianos, William E Johns, S. P. Murray

Research output: Contribution to journalArticle

92 Citations (Scopus)

Abstract

Direct oceanographic observations at the strait of Bab el Mandeb, which connects the Red Sea with the Indian Ocean, are used to estimate the heat and freshwater budgets of the Red Sea. The observations consist of 18-month records from transport resolving current-meter arrays and temperature-salinity chain moorings that allow accurate heat and salt fluxes through the strait to be determined. The new measurements account for the seasonally reversing surface-layer flow in the strait and the summertime intrusion of low-salinity thermocline water from the Gulf of Aden. The annual mean freshwater loss to the atmosphere over the Red Sea is estimated to be 2.06±0.22 m yr -1, while the annual mean heat loss is 11±5 W m -2. These results are compared with previous estimates of the Red Sea heat and freshwater budgets derived from both direct and indirect methods, which show large differences between each other and much larger uncertainties than the present estimates.

Original languageEnglish (US)
Pages (from-to)1323-1340
Number of pages18
JournalDeep-Sea Research Part II: Topical Studies in Oceanography
Volume49
Issue number7-8
DOIs
StatePublished - 2002

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Red Sea
heat
strait
salinity
Yemen
water salinity
Indian Ocean
thermocline
surface layer
uncertainty
salt
salts
budget
sea
atmosphere
temperature
water
loss
methodology

ASJC Scopus subject areas

  • Aquatic Science
  • Geology
  • Oceanography

Cite this

Heat and freshwater budgets in the Red Sea from direct observations at Bab el Mandeb. / Sofianos, S. S.; Johns, William E; Murray, S. P.

In: Deep-Sea Research Part II: Topical Studies in Oceanography, Vol. 49, No. 7-8, 2002, p. 1323-1340.

Research output: Contribution to journalArticle

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