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AGU: Water Resources Research

 

Keywords

  • saline lakes
  • Dead Sea
  • mass balance
  • energy balance
  • evaporation
  • inflow

Index Terms

  • Atmospheric Processes: Ocean/atmosphere interactions
  • Oceanography: Physical: Air/sea interactions
  • Oceanography: General: Limnology
  • Oceanography: General: Ocean data assimilation and reanalysis

Abstract

WATER RESOURCES RESEARCH, VOL. 41, W12418, 13 PP., 2005
doi:10.1029/2005WR004084

Water, salt, and energy balances of the Dead Sea

N. G. Lensky

Geological Survey of Israel, Jerusalem, Israel

Y. Dvorkin

Geological Survey of Israel, Jerusalem, Israel

V. Lyakhovsky

Geological Survey of Israel, Jerusalem, Israel

I. Gertman

Israel Oceanographic and Limnological Research, Haifa, Israel

I. Gavrieli

Geological Survey of Israel, Jerusalem, Israel

The Dead Sea is a hypersaline terminal lake experiencing a water level drop of about 1 m/yr over the last decade. The existing estimations for the water balance of the lake are widely variable, reflecting the unknown subsurface water inflow, the rate of evaporation, and the rate of salt accumulation at the lake bottom. To estimate these we calculate the energy and mass balances for the Dead Sea utilizing measured meteorological and hydrographical data from 1996 to 2001, taking into account the impact of lowered surface water activity on the evaporation rate. Salt precipitation during this period was about 0.1 m/yr. The average annual inflow is 265–325 × 106 m3/yr, corresponding to an evaporation rate of 1.1–1.2 m/yr. Higher inflows, suggested in previous studies, call for increased evaporation rate and are therefore not in line with the energy balance.

Received 6 March 2005; accepted 31 August 2005; published 14 December 2005.

Citation: Lensky, N. G., Y. Dvorkin, V. Lyakhovsky, I. Gertman, and I. Gavrieli (2005), Water, salt, and energy balances of the Dead Sea, Water Resour. Res., 41, W12418, doi:10.1029/2005WR004084.

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