An Equation of State for the Uremia Lake Water

The Lake Uremia experiences high evaporation rate and low inflow recently due to local meteorological changes and the agricultural water use in its corresponding watershed. Since, late 2017, the salinity exceeded 550 g/l in most of the northern part of the Lake. In such a hypersaline condition, the estimated values from the oceanic equation of state are not accurate anymore. In this study, similar relations for the Aral Sea and the Dead Sea are studied first and then retuned based on new set of measurements provided by dedicated instruments for high salinity environment. The formulae were assessed based on measurements and it was shown that the new formula introduced in this study significantly outperforms the available equations of state for the contemporary condition of the Lake Uremia.