文献类型：期刊文献

英文题名：Recent Trends of Extreme Precipitation and Their Teleconnection with Atmospheric Circulation in the Beijing-Tianjin Sand Source Region, China, 1960-2014

作者：Wei, Wei[1] Shi, Zhongjie[2] Yang, Xiaohui[2] Wei, Zheng[3] Liu, Yanshu[2] Zhang, Zhiyong[2] Ge, Genbatu[2,4] Zhang, Xiao[2] Guo, Hao[2] Zhang, Kebin[1] Wang, Baitian[1]

第一作者：Wei, Wei

通信作者：Shi, ZJ[1];Yang, XH[1]|[a0005d302b743c401205f]杨晓晖;

机构：[1]Beijing Forestry Univ, Coll Water & Soil Conservat, Beijing 100083, Peoples R China;[2]Chinese Acad Forestry, Inst Desertificat Studies, Beijing 100091, Peoples R China;[3]Southwest Forestry Univ, Coll Environm Sci & Engn, Kunming 650224, Peoples R China;[4]Chinese Acad Forestry, Expt Ctr Desert Forestry, Dengkou 015200, Inner Mongolia, Peoples R China

年份：2017

卷号：8

期号：5

外文期刊名：ATMOSPHERE

收录：;EI(收录号：20172103690100);Scopus(收录号：2-s2.0-85019892269);WOS:【SCI-EXPANDED(收录号:WOS:000404059500005)】；

基金：This research was supported by Fundamental Research Funds of CAF (CAFYBB2017ZA006), the International Science and Technology Cooperation Program of China (2015DFR31130), National Key Research and Development Program of China (2016YFC0500908; 2016YFC0500801; 2016YFC0500804), and the National Natural Science Foundation of China (31670715; 41471029; 41271033; 41371500).

语种：英文

外文关键词：extreme precipitation; trend; Mann-Kendall; Beijing-Tianjin Sand Source Region; ecological restoration; atmospheric circulation

摘要：Based on the daily precipitation data from 53 meteorological stations, 11 extreme precipitation indices were selected, categorized and calculated; the temporal and spatial patterns in these indices and their teleconnections with the large-scale circulations were analyzed by the non-parametric Mann-Kendall test; and Sen's slope estimator and linear regression for the period of 1960-2014 were calculated. The results indicated that all extreme precipitation indices had spatial patterns decreasing from the southeastern to the northwestern parts of the Beijing-Tianjin Sand Source Region (BTSSR), except for the consecutive dry days (CDD), which exhibited a reverse spatial pattern. At the whole-region scale, most extreme precipitation indices showed an insignificant decreasing trend, with exceptions in the intensity indices (RX1day and RX5day) with a statistical significance at the 90% confidence level. The total annual precipitation showed a general shift towards a drier climate in the study area. Spatially, all indices for extreme precipitation showed decreasing trends at most stations, except for simple daily intensity index (SDII) and heavy precipitation days (R10). The change in extreme precipitation may be affected by the El Nino-Southern Oscillation (ENSO), East Asian Summer Monsoon (EASM) and Pacific Decadal Oscillation (PDO). Better understanding of extreme precipitation for the BTSSR may be useful in the regional planning for ecological restoration and water management.