• 论文 •

### 福建古田站水面蒸发计算方法的探讨

1. 福建省水文总站
• 收稿日期:1982-05-01 修回日期:1982-08-13 出版日期:1983-06-15 发布日期:1983-06-15

### DISCUSSION OF THE CALCULATION METHOD OF WATER SURFACE EVAPORATION AT GUTIAN STATION FUJIAN PROVINCE

Chen Tianzhu

1. The General Hydrologic Station of Fujian Province
• Received:1982-05-01 Revised:1982-08-13 Online:1983-06-15 Published:1983-06-15

Abstract: Based on both pan-measured method and experience formula method, the conversion of water surface evaporation measured by pans at the Gutian station into evaporation from natural water body was explored in this paper from physical causes to the determination of formula. Water surface evaporation was also calculated by using the data of hydrometeorological factors.The determination of conversion coefficients and the laws of timespace variation as well as their effect factors were studied separately from the view points of both conversion coefficient and statistic correlation in the panmea-sured method. Dividing them into rising and falling temperature periods, the correlation formula between the evaporation of both ponds and pans was found out by mathematical function.The correlation between water surface evoporation and humidity grade, temperature grade as well as wind velocity was also explored in the experience formula method and then the correlation formula between water surface evaporation and hydrometeorological factors was developed.This paper can be used as references for studying the determination of water surface evaporation in the same climatie regions, the water surface evaporation can be calculated by means of the known data of various factors and the corresponding formulae, and the results might be satisfactory.