Climate Change of Extreme Precipitation in Xinjiang

  • Institute of Desert Meteorology, China Meteorological Administration, Urumqi 830002, China

Received date: 2002-12-05

  Revised date: 2003-02-17

  Online published: 2003-07-25

Supported by

he National Pre-project for Basic Research, No.2002cca04600


Based on the day-to-day observed data of precipitation from 55 meteorological stations in Xinjiang from 1961 to 2000, the climatic variations, tendencies and distribution of extreme precipitation have been analyzed during the last 40 years. The climate jumps have been examined in terms of 3-year moving averaged seasonal and annual series of extreme rainfall and frequency using Yamamoto method and Mann-Kendall method. Regional ecological environments have been changed tremendously after large-scale reclamation since the 1950s at the northern foot of the Tianshan Mountains and Aksu area. Rainfall and frequency of extreme precipitation have an increasing tendency in the two areas since the 1980s. Under the special geographical conditions and climate background, the changes resulted from variations of regional eco-environments and climate are induced by human activities. The results obtained are as follows: Quantity and frequency of extreme precipitation have an obvious increasing tendency at the northern foot of the Tianshan Mountains and Aksu area, especially since the 1980s, there is a climate jump of annual extreme precipitation in 1980; the linear tendencies of annual extreme precipitation are 24.5%/10a in Aksu area, 19.5%/10a at the northern foot of the Tianshan Mountains; the linear tendency of frequency increases by 20%/10a in Aksu area, and 14.5%/10a at the northern foot of the Tianshan Mountains. In other areas there are no obvious variations. Climate change of extreme precipitation is from variation of extreme rainfall in summer. The percentage that extreme precipitation takes up in annual precipitation: the Tianshan Mountions is 41.9%, northern Xinjiang and Hotan region are 17.2% and 1.9% respectively, the other areas are 25%-31.3%.

Cite this article

YANG Lianmei . Climate Change of Extreme Precipitation in Xinjiang[J]. Acta Geographica Sinica, 2003 , 58(4) : 577 -583 . DOI: 10.11821/xb200304012


[1] J T Houghton et al. IPCC. Climate Change 1995, The Second IPCC Scientific Assessment. Intergovernmental Panel on Climate Change. WMO/UNEP. Cambridge University Press, 1995.

[2] GCOS/CLIVAR. Indices and indicators for changes in climate extremes. Asheville, NC, USA, 1997(6): 3-6.

[3] Yan Zhongwei, Yang Chi. Change structure in climatic extremes in China in recent decades. Climate and Environment, 2000, 5(3).
[严中伟, 杨赤. 近几十年我国极端气候变化格局. 气候与环境研究, 2000, 5(3).]

[4] Zhai Panmao. Detection of trends in China's precipitation extremes. Acta Meteorologica Sinica, 1999, 57(2): 208-216.
[翟盘茂. 中国降水极值变化趋势检测. 气象学报, 1999, 57(2): 208-216.]

[5] Jones et al. The use of indices to identify changes in climatic extremes. Climatic Change, 1999, 42: 131-149.

[6] Zhang Jiabao, Shi Yuguang. Climate Change and Forecast of Short-term Climate in Xinjiang. Beijing: Meteorological Press, 2002.
[张家宝, 史玉光. 新疆气候变化及短期气候预测. 北京: 气象出版社, 2002.]

[7] Hu Ruji. Signals and effects of climatic pattern change from warm-dry to warm-wet in Xinjiang. Arid Land Geography, 2002, 25(3): 194-200.
[胡汝骥. 新疆气候由暖干向暖湿转变的信号及影响. 干旱区地理, 2002, 25(3): 194-200.]

[8] Geographical Society of Xinjiang (ed.). Geographical Handbook in Xinjiang. Urumqi: Xinjiang People's Press, 1993. 3-4.
[新疆地理学会 编. 新疆地理手册. 乌鲁木齐: 新疆人民出版社, 1993. 3-4.]

[9] Song Yudong. Research on Water Resources and Ecology of Tarim River, China. Urumqi: Xinjiang People's Press, 2000. 181-189.
[宋郁东. 中国塔里木河水资源与生态问题研究. 乌鲁木齐: 新疆人民出版社, 2000. 181-189.]

[10] Wei Wenshou. The Responses and Feedback of Modern Sand Deserts to Climate Change. Beijing: China Environmental Science Press, 2000. 62-72.
[魏文寿. 现代沙漠对气候变化的响应与反馈. 北京: 中国环境科学出版社, 2000. 62-72.]

[11] Zhang Jiabao, Deng Zifeng. A Generality of Rainfall in Xinjiang. Beijing: Meteorological Press, 1987. 10-16.
[张家宝, 邓子风. 新疆降水概论. 北京: 气象出版社, 1987. 10-16.]

[12] Fu Congbin, Wang Qiang. The definition and detection of the abrupt climatic change. Scientia Atmospherica Sinica, 1992, 16(1): 111-119.
[符淙斌, 王强. 气候突变的定义和检测方法. 大气科学, 1992, 16(1): 111-119.]