Spatial and temporal variability of annual precipitation during 1961-2006 in Yellow River Basin, China
Spatial and temporal variability of annual precipitation during 1961-2006 in Yellow River Basin, China
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黄河流域1961-2006年年降水量时空变化
DOI：
10.1016/j.jhydrol.2008.08.002
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发表时间：
2008-11-15
影响因子：
6.4
通讯作者：
Cui, Baoshan
中科院分区：
文献类型：
--
作者：
Liu, Qiang;Yang, Zhifeng;Cui, Baoshan
采用香农熵法、曼-肯德尔法（M-K法）和线性拟合模型研究了1960-2006年黄河流域降水量的时空变化趋势。结果表明，降水量具有经度地带性，与纬度没有明显的线性关系，大部分降水站呈减少趋势，仅长江流域有2个气象站呈上升趋势。 M-K方法揭示的突变主要发生在长江流域中下游38IN以南地区。此外，突变发生的时期为1963年至1998年，下游突变出现早于长江流域中上游。 (C) 2008 Elsevier B.V. 保留所有权利。
The Shannon Entropy method, Mann-Kendall method (M-K method) and linear fitted model were applied in this study to investigate the spatial and temporal patterns of trends of the precipitation in the Yellow River Basin (YRB) during 1960-2006. Results indicated that the precipitation possessed longitude zonality and had no clearly linear relationship with the latitude, it showed a decreasing trend in most of the precipitation stations, only two meteorological stations displayed upward trend in the YRB. The abrupt changes revealed by the M-K method mainly occurred to the south of 38 IN in the middle-lower reaches of the YRB. Furthermore, the abrupt changes occurred in the period ranged from 1963 to 1998 and the abrupt changes in the lower reaches appeared earlier than those in the middle and upper reaches of the YRB. (C) 2008 Elsevier B.V. All rights reserved.