Research and Development of Water Surface Evaporation in China

The water surface evaporation not only reflects the local evaporation capacity but also the loss of water evaporation.The analysis and calculation of water surface evaporation is very meaningful to the study of water resources and agriculture problem.The research progress evaporation model,conversion coefficient and calculating method for the water evaporation were summarized,analyzed the advantages and disadvantages of the calculation method of water surface evaporation.At last,the application of the new technique in future and the existing problems on the water surface evaporation were summarized.