How the Runoff Response to the Climatic Factors in the Source Region of the Yangtze River
In recent years, especially after 1980s, climatic factors have varied more extremely and abnormally in the source region of the Yangtze River. As a typical sensitive area of climate change, to study the responses of hydrological variation has become more important to reveal relation between them. Combining with polynomial regression estimation (PRE), the Morlet wavelet transform (MWT) had been used to decompose annual runoff into various periods of 20 year and 7 year. Furthermore, based on the wavelet coefficients calculated between runoff and climatic factors, it revealed that 20 year period of runoff is only influenced by precipitation. And, in period of 7 year, its influence is greater than temperature.
Kaizhu QIAN Jingjing LV Xusheng WANG
School of Water Resources and Environment, China university of Geosciences in Beijing, Beijing, China
国际会议
International Conference on Water Resources Management and Engineering(水资源管理与工程国际会议)
郑州
英文
41-44
2011-07-22（万方平台首次上网日期，不代表论文的发表时间）