8Penman G F. Natural evaporation from open water, bare soil, and grass[J]. Proc. R. Soc. Loncl. , Ser. A,1948, 193: 120 - 145.
9Davenport D C. Variations of evaporation in time and space, 1. Study of diurnal changes using evaporimeters and grass lysimeters [ J ]. J. Hydrol. , 1967,5:312 - 328.