GEOGRAPHICAL RESEARCH ›› 1988, Vol. 7 ›› Issue (1): 86-94.doi: 10.11821/yj1988010012

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AREVIEW OF EVAPORATION STUDY IN THE WORLD

Zuo Dakang, Qin Wenhan   

  1. Institute of Geography, Chinese Academy of Sciences and Siale Planning Commission of The People's Republic of China
  • Online:1988-03-15 Published:1988-03-15

Abstract: The achievement in the field of evaporation calculation in the world during last two decades is reviewed. The micrometeorological methods for calculating evaporation which are divided into three classes (traditional, simula ting and remote sensing method) according to the physical machanism they are based on, are summarized and discussed, and prespect is presented.In spite of itsfaults(evidently in the case where ground surface is rough and unhomogeneous) the traditional method is still the routine one of calcula ting evaporation owing to its simqlicity and practicality. On the contrary, the simodelling way, though precise, is far from rontine at present because of its complexity and intricatecacy. But it can theoretically offer ways to establish the new model and modify the traditional method.The remote sensing method is in the developing stages. Although many problems remain to be solved, it is much useful for practice and looks very promising because it can provide regional evaporation information.During the 1980s, with improvement of exqerimental facilities the work in terms of calculating turbulent fluxes (Which include evaporalion) by use of both numerical model describing the turbulent exchange processes between vegeta tion (or bare soil) andatmosphere and remote multisqectral and multi-phasic data is more and more increasing. That is also two promising ways to calculate evaporation more accurately in future.