河西地区黑河流域绿洲蒸发力特征及其计算方法  

THE CHARACTERISTICS AND CALCULATIONAL METHOD OF THE EVAPORATION POWER FOR OASIS IN HEIHE RIVER BASIN IN HEXI REGION

作　　者：吴敬之[1] 王尧奇[1] 高洪春[1] 

机构地区：[1]中国科学院兰州高原大气物理研究所

出　　处：《高原气象》1994年第3期377-381,共5页Plateau Meteorology

摘　　要：在河西地区黑河流域地气相互作用的观测研究中，我们在不同下垫面上进行了蒸发力的测量。发现绿洲内蒸发力仅是戈壁的４４％—５６％。绿洲内蒸发力并不比湿润地区有显著增大。夜间蒸发力所占比重较大是一普遍现象。用彭曼原式和修正式计算干旱地区的蒸发力，个别月份误差较大。A evaporation power was observed for different underlying surface during observational study on the interaction between earth and atmosphere in the Heihe River basin in Hexi region The evaporation power in oasis was only 44% 56% of that in Gebi and was not markedly greater than that in moist area The evaporation power at night is larger than that at day.It is a general phenomenon.The calculation error of evaporation power in arid area for few months in relatively high when the evaporation was computed with Penman′s original-formula and modified formula It is optimum that the experience formula is obtained by air saturation difference fitting

关 键 词：绿洲 蒸发力 计算法 黑河实验区 

分 类 号：P332.2[天文地球—水文科学]