Temporal variation in summer monsoon intensity since 1873 and its influence on runoff in the drainage area between Hekouzhen and Longmen, Yellow River basin, China
Temporal variation in summer monsoon intensity since 1873 and its influence on runoff in the drainage area between Hekouzhen and Longmen, Yellow River basin, China
复制标题
黄河流域河口镇至龙门流域1873年以来夏季风强度时空变化及其对径流的影响
DOI：
10.1007/s10584-011-0225-3
复制
发表时间：
2012-05
期刊：
影响因子：
4.8
通讯作者：
Xu, Jiongxin
中科院分区：
文献类型：
--
作者：
Xu, Jiongxin
受大陆性季风气候的控制，黄河径流表现出较大的时间变异性。径流对夏季风强度变化的响应在理论上和水资源管理中都很重要。黄河最早的水文观测开始于1919年，因此，径流数据只有近90年的历史。利用夏季风强度（SMI）资料，分析了黄河流域河口镇至龙门流域1873年以来夏季风强度的时间变化及其径流变化。在128 a尺度上，SMI的变化可以概括为先减小后增大再减小的趋势。在50 a时间尺度上，SMI和降水的时间变化都呈现一定的减小趋势。在80 a时间尺度上，SMI和自然径流的时间变化也呈减小趋势。对于这些变量的5年移动平均，同步变化趋势更为明显。这说明SMI的变化导致了研究区降水和径流的变化。基于1920 ~ 2000年SMI和自然径流数据，建立了SMI5年移动平均（SMI5m）与自然径流（Qwn,5m）的回归方程，表明SMI5年移动平均（Qwn,5m）的72%的变化可以用SMI5m的变化来解释。利用该回归方程，重建了1873 - 1919年的Qwn，5m。在128 a尺度上，研究区自然径流量表现出先减少后增加再减少的趋势，与夏季风强度的变化相似。
Controlled by continental monsoon climate, runoff of the Yellow River shows large temporal variability. How runoff responds to the changing summer monsoon intensity is important both in theory and in water resources management. The earliest hydrological observations on the Yellow River started in 1919, and thus, runoff data are available only for the past 90 years. Using data of the summer monsoon intensity (SMI), the temporal variation of SMI since 1873 and the resultant variation in runoff are dealt with for the drainage area between Hekouzhen and Longmen, Yellow River basin. At the 128-year scale, the variation of SMI can be generalized as a trend of decreasing first, then increasing and then decreasing again. At the time scale of 50 years for which concurrent data are available, the temporal variations in both SMI and precipitation show some decreasing trend. At the time scale of 80 years for which concurrent data were available, the temporal variations in SMI and natural runoff also show a decreasing trend. For 5-year moving averages of these variables, the synchronous trend of variation is more obvious. This fact indicates that the variation in SMI results in the variations in precipitation and runoff in the study area. Based on data of SMI and natural runoff for the period from 1920 to 2000, a regression equation between the 5-year moving averages of SMI (SMI5m) and natural runoff (Qwn,5m) was established, which shows that 72% of the variation inQwn,5mcan be explained by the variation in SMI5m. Using this regression equation,Qwn,5mfor the period from 1873 to 1919 was reconstructed. At the 128-year scale, the natural runoff from the study area shows a trend of decreasing first, then increasing and then decreasing again, in response to the similar variation in the summer monsoon intensity.
登录
查看更多内容
影响因子：
3.3
作者：
Tang Deng
通讯作者：
Tang Deng
DOI：
10.1002/qj.49711649110
发表时间：
1990-01-01
影响因子：
8.9
作者：
DEMAREE, GR;NICOLIS, C
通讯作者：
NICOLIS, C
影响因子：
3.1
作者：
N. Viney;M. Sivapalan
通讯作者：
N. Viney;M. Sivapalan
影响因子：
5.8
作者：
Huijun Wang
通讯作者：
Huijun Wang
影响因子：
1.4
作者：
J. Hopkin
通讯作者：
J. Hopkin