摘要
在文献[1]的基础上,将Giorgi(1996)提出的通量计算方案进一步推广为非对称分布的简化形式,求得非均匀地表区域平均通量。以土壤水分饱和度为例,求解出土壤水分通量区域值的数学解析解形式,用随机仿真数据和实测资料对该方案进行数值模拟试验,验证其适用性。
On the basis of reference^(), the calculated scheme of soil moisture flux presented by Giorgi(1996) is further spread to be the simplified form of asymmetrical distribution , so as to obtained the mean flux of heterogeneous surface region. Taking the degree of soil moisture saturation for example, it is solved for the analytical solution of mathematics about regional mean value of soil moisture flux. Asymmetrical simplified probability density function (PDF) distribution is studied, and the cases for calculations of soil moisture flux over the heterogeneous land surface are verified by using the simplified PDF.
出处
《高原气象》
CSCD
北大核心
2004年第5期605-611,共7页
Plateau Meteorology
基金
国家自然科学基金项目(40375035)资助
关键词
非对称分布
土壤水分通量
非均匀地表
Asymmetry distribution
Soil moisture flux
Heterogeneous surface
