A Simple Model to Estimate Actual Evaporation for Iraq Based on Satellite Data


  • Department of Atmospheric Science, College of Science, Mustansiriyah University, Baghdad, Iraq
  • Department of Atmospheric Science, College of Science, Mustansiriyah University, Baghdad, Iraq


hydrological cycle, evaporation, Precipitable Water Vapor, security healthcare


The hydrological cycle plays a key role in life on our planet. It is closely related with exchanges of
energy between Earth's surface and the atmosphere, which ultimately determines the climate the purpose
of this study is to apply a statistical model in order to estimate and calculate Actual evaporation for Iraq
in 1984-2010 based on Precipitable Water Vapor Data from Satellites. We calculated the water cycle rate
for this purpose using satellite data, and we used data from the Planet Simulator model to determine the
precipitation/evaporation relationship during a 10-year period. The relative error in estimating the
evaporation rate using the model does not exceed 2.1%. Results showed that the actual evaporation in
1983-2009 for Iraq ranging between (0.5 - 2.4) mm/day as a monthly average and (0.79-1.43) mm/day as
yearly average. and the actual evaporation decrease in the last years.


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