Calculating the water and heat balances of the Eastern Mediterranean Basin using ocean modelling and available meteorological, hydrological and ocean data
Calculating the water and heat balances of the Eastern Mediterranean Basin using ocean modelling and available meteorological, hydrological and ocean data
Eastern Mediterranean water and heat balances were analysed over 52 years. The
modelling uses a process-oriented approach resolving the one-dimensional equations
of momentum, heat and salt conservation; turbulence is modelled using a twoequation
model. The results indicate that calculated temperature and salinity
follow the reanalysed data well. The water balance in the Eastern Mediterranean
basin was controlled by the difference between inflows and outflows through the
Sicily Channel and by net precipitation. The freshwater component displayed a negative trend over the study period, indicating increasing salinity in the basin.
The heat balance was controlled by heat loss from the water surface, solar radiation
into the sea and heat flow through the Sicily Channel. Both solar radiation and net
heat loss displayed increasing trends, probably due to decreased total cloud cover.
In addition, the heat balance indicated a net import of approximately 9 W m−2 of
heat to the Eastern Mediterranean Basin from the Western Basin.
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