摘要
为了解海岛地区潜在蒸散发对主要气象要素的敏感性,以嵊泗列岛为研究区域,利用嵊泗站1960-2008年的日尺度气象数据,通过FAO Penman-Monteith计算相应的潜在蒸散发。并利用Sobol'全局敏感性方法分析潜在蒸散发对最高温度、最低温度、相对湿度、风速和太阳辐射的敏感性。结果表明:在春、秋、冬3季中,相对湿度的独立敏感性最高,其次是太阳辐射;夏季则是太阳辐射最高,相对湿度次之;而最高温度全年都最低。气象要素之间的相关性虽小,但不能忽略,其中相对湿度与风速之间的相关性最大。
To understand the sensitivity of potential evapotranspiration（PET ） to main climatic variables in the area of islands ,PET is calculated via FAO Penman-Monteith by using daily observed data from 1960 to 2008 of Shengsi Meteorological Station .Shengsi Islands are used as study areas in this research .The Sobol＇global sensitivity analysis method is employed to explore the sensitivity of PET to maximum and minimum air temperature ,relative humidity ,wind speed and solar radiation .The results are as follows ：in spring ,autumn and winter ,the PET is most sensitive to relative humidity ,and then to solar radiation ;in summer ,solar radiation is the most important sensitive climatic variable ,relative humidity is the second ;and maximum air temperature always remains as the least sensitive variable throughout the whole year .Although the correlation between climatic variables is small ,it cannot be ignored . And it is found that the correlation between relative humidity and wind speed is the largest ,compared with the other variables .
出处
《中国农村水利水电》
北大核心
2014年第11期35-38,42,共5页
China Rural Water and Hydropower
基金
科技部国际合作项目(2010FA24320)
国家自然科学基金项目(51379183
50809058)
