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　ZHANG Yanwei,WEI Wenshou,JIANG Fengqing,et al.Trends of Extreme Precipitation Events over Xinjiang during 1961—2008[J].Mountain Research,2012,(04):417.
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1961—2008年新疆极端降水事件的变化趋势()

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《山地学报》[ISSN:1008-2186/CN:51-1516]

Title:: Trends of Extreme Precipitation Events over Xinjiang during 1961—2008

作者:: 张延伟;魏文寿;姜逢清;刘明哲;王雯雯;; 1.中国科学院新疆生态与地理研究所, 新疆乌鲁木齐 830011;
2.中国科学院研究生院, 北京 100049;
3.中国气象局新疆沙漠气象研究所, 新疆乌鲁木齐 830002;
4. 新疆大学数学与科学学院, 新疆乌鲁木齐 830046;
5. 中国科学院新疆积雪雪崩站, 新疆乌鲁木齐 835000

Author(s):: ZHANG Yanwei; WEI Wenshou; JIANG Fengqing; LIU Mingzhe; WANG Wenwen; 1. Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences Urumqi, 830011, China;
2. Graduate School of Chinese Academy of Sciences, Beijing 100049, China;
3. Institute of Desert Meteorology, CMA, Urumqi 830002, China;
4. Department of Mathematic, Xinjiang University, Urumqi 830046, China;
5. Tianshan Snow Avalanche Research Station, Chinese Academy of Sciences, Urumqi 835000, China

摘要:: 利用新疆1961—2008年逐日降水、最高气温和最低气温资料,采用ETCDDMI定义的极端降水事件的阈值,然后统计出极端降水事件的每年湿期降水总量、简单降水强度指数、月最大1 d降水量、月最大5 d降水量、重湿日数和连续干日,并对其空间分布和时间趋势进行分析。结果表明,新疆极端降水事件阈值的空间分布存在明显的地域差异,北部地区在48 a极端指数变化比其他地区显著;每年湿期降水总量、简单降水强度指数、月最大1 d降水量、月最大5 d降水量、重湿日数和连续干日的空间特征基本相似,除连续干日,总体呈自东南向西北递增的态势,且高值中心均分布于山区一带。48年来,除连续干日,极端降水事件的其他5个指标呈...

Abstract:: Based on daily precipitation, maximum temperature and minimum temperature data of 37 meteorological stations over Xinjiang during 1961—2008, the extreme precipitation indices were determined for different stations by the ETCDDMI, and then, six indices including PRCPTOT, SDII, RX1day, RX5day, R95 and CDD of extreme precipitation indices were counted and their spatial characteristics and temporary trends were analyzed. The results showed that the extreme precipitation indices indicated the remarkable regional difference, some region show increasing and other show decreasing. The spatial characteristics of PRCPTOT, SDII, RX1day, RX5day, R95 and CDD of extreme precipitation indices were similar, i.e. PRCPTOT, SDII, RX1day, RX5day and R95 were all characterized with an increase from the southeast to northwest of Xinjiang and their highvalue centers were located in the Mountain. For recent 48 years, 6 indices except CDD showed a decreasing trend，which was more significant increasing in most region of Xinjiang for these 5 indices. However, the extreme precipitation indices showed obvious trend and abruption change. Six indices of extreme precipitation events all indicated the remarkable interdecadal variability and furthermore，the qusia-3 and qusia-7 year oscillating period existed for these four indices during 1961—2008.

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备注/Memo:: 收稿日期(Received date)：2011-11-13；改回日期(Accepted) : 2012-03-01。
基金项目（Foundation item）：科技部公益行业科研专项：GYHY200806011；中国科学院“西部之光”项目：RCPY200902；国家自然科学基金面上项目：41171066；国家自然科学基金：新疆天山北麓基于树木年轮气候重建的云杉种群生态研究(41071072)。\[The “Western Light” Project(RCPY200902) of the Chinese A cademy of Sciences and the National Natural Science Foundation(41071072) of Xinjiang Znstitute of Ecology.\]
作者简介（Biography）：张延伟(1984-)，男，山东枣庄人，在读博士，主要研究方向极端气候变化与气候诊断。\[Zhang Yanwei(1984-),male,born in Zhozhuang Shandong,Ph D,the min engages in the stndy of extrome climate change and climate diagnostics.\]E-mail addresses:2008zywkk@sina.com *
通讯作者(Corresponding author): 魏文寿 ( E-mail addresses: weiwsh@ms.xjb.ac.cn )

更新日期/Last Update: 1900-01-01