Multivariate linear relation for precipitation: A new simple empirical formula
Multivariate linear relation for precipitation: A new simple empirical formula
复制标题
降水量的多元线性关系：一个新的简单经验公式
DOI：
10.1007/s11200-013-1162-6
复制
发表时间：
2015
影响因子：
0.9
通讯作者：
C. Karavitis
中科院分区：
文献类型：
--
作者：
C. Chatzithomas;S. Alexandris;C. Karavitis
在Viotikos Kefissos流域的多变量线性模型进行测试，估计月和年平均值的降水量使用两个不同的数据集。使用所有可用数据验证模型结果。三个自变量被用来估计月和年平均降水量。第一个自变量是每个测站的高程。第二个独立变量考虑到冬季风暴主要来自西部，这些风暴承担了落入盆地的大部分降水。位于盆地西侧的站点比位于盆地东侧的站点获得了更大的变量值。第三个自变量是指希腊北方地区降雨量比南部地区多的趋势。位于盆地北方侧的站点此变量的值较高，而位于盆地南部侧的站点此变量的值较小。前两个变量产生了很大一部分信息，而第三个变量则没有。多元线性模型的结果进行了比较，协同克里格的结果，并发现解释类似的Voiotikos Kefissos盆地的降水的空间变异性的部分。
A multivariate linear model is tested in the Viotikos Kefissos basin to estimate monthly and annual average values of precipitation using two different datasets. The model results are validated using all available data. Three independent variables are used to estimate monthly and annual average precipitation. The first independent variable is the elevation of each station. The second independent variable takes into account that the winter storms, which bear most of the precipitation that fall into the basin, come mainly from west. Stations located at the western side of the basin were given a greater value for this variable than stations located at the eastern side of the basin. The third independent variable refers to the trend of the northern part of Greece to have more rain than the southern part. Stations located at the northern side of the basin have higher values for this variable while stations located at the southern side of the basin have smaller values. The first two variables yield a significant part of the information while the third variable does not. The results of the multivariate linear model are compared with the results of co kriging, and found to explain similar parts of the spatial variability of the precipitation of the Voiotikos Kefissos basin.