Preprints
https://doi.org/10.5194/osd-8-1301-2011
https://doi.org/10.5194/osd-8-1301-2011

  14 Jun 2011

14 Jun 2011

Review status: this preprint was under review for the journal OS but the revision was not accepted.

Calculating the water and heat balances of the Eastern Mediterranean basin using ocean modelling and available meteorological, hydrological, and ocean data

M. Shaltout1,* and A. Omstedt2 M. Shaltout and A. Omstedt
  • 1Department of Oceanography, University of Alexandria, Alexandria, Egypt
  • 2Department of Earth Sciences, University of Gothenburg, Göteborg, P.O. Box 460, 40530, Gothenburg, Sweden
  • *currently at: Department of Earth Sciences, University of Gothenburg, Göteborg, P.O. Box 460, 40530, Gothenburg, Sweden

Abstract. This paper analyses the Eastern Mediterranean water and heat balances over a 52-yr period. The modelling uses a process-oriented approach resolving the one-dimensional equations of momentum, heat, and salt conservation, with turbulence modelled using a two-equation model. The exchange through the Sicily Channel connecting the Eastern and Western basins is calculated from satellite altimeter data. The results illustrates that calculated surface temperature and salinity follow the reanalysed data well and with biases of −0.4 °C and −0.004, respectively. Monthly and yearly temperature and salinity cycles are also satisfactory simulated. Reanalysed data and calculated water mass structure and heat balance components are in good agreement, indicating that the air-sea interaction and the turbulent mixing are realistically simulated. The study illustrates that the water balance in the Eastern Mediterranean basin is controlled by the difference between inflows/outflows through the Sicily Channel and by the net precipitation rates. The heat balance is controlled by the heat loss from the water surface, sun radiation into the sea, and heat flow through the Sicily Channel, the first two displaying both climate trends. An annual net heat loss of approximately 9 W m−2 was balanced by net heat in flow through the Sicily Channel.

M. Shaltout and A. Omstedt

 
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

M. Shaltout and A. Omstedt

M. Shaltout and A. Omstedt

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