水资源与水工程学报Issue(3)：1-7,7.DOI:10.11705/j.issn.1672-643X.2014.03.01
气象因子在海河流域蒸发悖论中的作用机理
Mechanism of effect of meteorological factors in paradox theory of pan evaporation of Haihe River basin
摘要
Abstract
Evaporation is an important part of hydrological circulation .The Mann-Kendall's trend test technique was used to detect the trend of pan evaporation in the Haihe River basin ( HRB) from 1961 to 2006 .The results showed that there is a statistically significant decreasing trend of pan evaporation in the HRB.Correlation analysis , partial correlation analysis , and principal component analysis were used to analyze the relationship between pan evaporation and four meteorological factors such as mean tempera -ture, relative humidity , wind speed and sunshine duration .The paper set up an empirical formula ( E-THWS formula ) for calculating pan evaporation based on the four meteorological factors , and announced the effect of four meteorological factors in paradox theory of pan evaporation of Haihe River basin .The results indicated that the increasing effect of pan evaporation by mean temperature and relative humidity is less than the decreasing effect of pan evaporation by average wind speed and sunshine duration .The de-crease of average wind speed is the chief reason resulting in the decrease of pan evaporation in HRB .关键词
气象因子/蒸发皿蒸发量/蒸发悖论/Mann-Kendall趋势检验/海河流域Key words
meteorological factor/pan evaporation/paradox theory of pan evaporation/Mann-Kendall's test/Haihe River basin分类
天文与地球科学引用本文复制引用
鲍振鑫,严小林,王国庆,刘翠善,贺瑞敏..气象因子在海河流域蒸发悖论中的作用机理[J].水资源与水工程学报,2014,(3):1-7,7.基金项目
国家重大科学研究计划项目（2010 CB951103）；水文水资源与水利工程科学国家重点实验室开放研究基金（2013490411）；国家自然科学基金项目（41330854、41371063、L1322014）；“十二五”国家科技支撑计划项目 （）
