[1]洛桑卓玛,拉 巴,巴丹卓玛.西藏那曲地区40多年来降水趋势变化气候分析[J].山地学报,2014,(03):380.
 LuoSang Zhuoma,La Ba,BaDan Zhuoma8.Climatic Trends of Precipitation over More Than 40 Years in Nagqu of Northern Tibet Plateau[J].Mountain Research,2014,(03):380.
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西藏那曲地区40多年来降水趋势变化气候分析()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2014年03期
页码:
380
栏目:
青藏高原
出版日期:
2014-03-01

文章信息/Info

Title:
Climatic Trends of Precipitation over More Than 40 Years in Nagqu of Northern Tibet Plateau
作者:
洛桑卓玛拉 巴巴丹卓玛
西藏那曲地区气象局,西藏 那曲 852000
Author(s):
LuoSang ZhuomaLa BaBaDan Zhuoma(384)
Tibet Nagqu Region Meteorological Bureau,Nagqu 852000,Tibet,China
关键词:
西藏那曲地区降水量降水日数趋势变化突变检测
Keywords:
Nagqu of Tibetprecipitationthe number of precipitation days trends mutation detection
分类号:
P426.61
文献标志码:
A
摘要:
利用藏北高原西藏那曲地区6个气象站1971—2011年逐年月降水量、降水日数资料,通过线性倾向估计、多阶曲线模拟和Mann-Kendall法等气候统计学诊断方法,对近41年来降水趋势变化的地理分布以及年内、年际变化规律进行了分析,并进行突变检测。结果表明:近41年来,那曲地区年降水量总体呈增加趋势,经历了由偏少到偏多的2个周期;降水增加夏季最明显,各站在6.48~20.40 mm/(10 a),冬季变化很小;日降水量≥0.1 mm日数年际周期变化与降水量变化基本一致,增加趋势空间分布呈东南向西北递减形势;自1996年开始各站降水增加趋势明显,1999年发生气候突变可能性较大。
Abstract:
This paper investigated the spatial and temporal distribution of precipitation during 1971 to 2011 in Nagqu Prefecture of Northern Tibet Plateau,China based on the monthly precipitation and the annual number of precipitation days at 6 meteorological stations and climatic statistic methods,including linear tendency evaluation,multistage curve simulation and the Mann-Kendall test. Results show that annual precipitation exhibits increasing trend in the past 41 years which experienced two periods from less precipitation to more precipitation. The increase of precipitation in summer is quite obvious with 6.48 to 20.40 mm increment per decade while the variation is pretty small in winter. The interannual distribution of number of days with daily precipitation larger than 0.1 mm is basically has same variation with the annual precipitation. The spatial distribution of precipitation decreases from the southeast to the northwest parts of Tibet. The precipitation start to increase from 1996 at each meteorological stations and it has greater possibility of abrupt climate change in 1999.

参考文献/References:

[1] Ma Xiaobo,Hu Zeyong.Precipitation variation characteristics and abrupt change over Qinhai Xizang Plateau in recent 40 years [J].Journal of Desert Research,2005,25(1):137-139[马晓波,胡泽勇.青藏高原40年来降水变化趋势及突变的分析[J].中国沙漠,2005,25(1):137-139]
[2] Du Jun,Ma Yucai.Cliamtic trend of rainfall over Tibetan Plateau from 1971 to 2000 [J].Acta Geographica Sinica,2004,59(32):375-382[杜军,马玉才.西藏高原降水变化趋势的气候分析[J].地理学报,2004,59(32):375-382]
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备注/Memo

备注/Memo:
收稿日期(Received date):2013-03-13;改回日期(Accepted):2013-05-02。
作者简介(Biography):洛桑卓玛(1983-),女, 藏族,西藏那曲人, 本科,助理工程师, 从事天气预报和气候分析等科研工作。[LuoSang Zhuoma, (1983-), Tibetan, Nagqu, Bachelor,assistant engineer, working on research of weather forecast and climate analysis.] *
通信作者(Corresponding author):拉巴(1973-),男,藏族,拉萨人,本科, 天气气候高级工程师,从事天气预报和气候分析等科研工作。[La Ba(1973-), Tibetan, Lhasa, Bachelor,Senior engineer, working on research of weather forecast and climate analysis.] E-mail:11139737@qq.com
更新日期/Last Update: 1900-01-01