小型蒸发器对E-601B蒸发器的折算系数
CONVERSION COEFFICIENT OF SMALL EVAPORATION PAN INTO E-601B PAN IN CHINA
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摘要: 为了便于将过去40多年的小型蒸发器观测资料与E-601B蒸发器观测资料衔接使用,对全国618个基准和基本站直径20 cm小型蒸发器与E-601B蒸发器3年平行对比观测结果进行了统计,按省(市)给出了这两种仪器的月、年平均折算系数值及年折算系数的全国分布图,并给出了相应的标准差和相对标准差。Abstract: In order to connect evaporation data observed from 20 cm diameter evaporation pans in the past 40 years with those from E-601B pans, a comparison of evaporation data is made between 20 cm diameter pan and E-601B pan from 618 evaporation experimental stations for three years. The monthly and annual-mean conversion coefficients for the two instruments and the nationwide distribution chart of the annual-mean coefficient, as well as the corresponding standard deviation and relative standard deviation, are given.
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表 1 小型蒸发器与E-601B蒸发器的主要性能参数
表 2 各省 (市、区) 小型蒸发器对E-601B蒸发器平均折算系数
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[1] 施成熙, 牛克源, 陈天珠.水面蒸发器折算系数研究.地理科学, 1986, 6(4): 305~313. http://www.cnki.com.cn/Article/CJFDTOTAL-DLKX198604001.htm [2] 裴步祥.蒸发和蒸散的测定与计算.北京:气象出版社, 1989. 7~15. [3] 水利水电部水利水文自动化研究所. E-601B型水面蒸发器实验报告. 北京: 水利水电部水利水文自动化研究所图书馆, 1988.