Extreme Precipitation in 1960-2011 over Hedong Area of Gansu, China

doi:10.7522/j.issn.1000-694X.2013.00250

JOURNAL OF DESERT RESEARCH

2013, Vol. 33

Issue (6): 1884-1890 DOI: 10.7522/j.issn.1000-694X.2013.00250

Weather and Climate

Extreme Precipitation in 1960-2011 over Hedong Area of Gansu, China

LI Xiao-ya, ZHANG Bo

College of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China

Download:

PDF (5500KB)
Export: BibTeX | EndNote (RIS)

Abstract

Based on daily precipitation data collected in 13 meteorological stations over Hedong area of Gansu Province, China during 1960-2011, the method of linear regression, inverse distance weighted interpolation, Mann-Kendall test, wavelet analysis and rescaled range analysis are employed to analyze the spatial and temporal variability of extreme precipitation, and the trend of extreme precipitation is also predicted. The results are as follows: (1) During 1960-2011, consecutive dry days have significantly increasing trend. The other indices decrease and only heavy precipitation days decrease significantly at the 0.05 level. There are obvious differences between monsoon sub-area and plateau sub-area. In monsoon sub-area, heavy precipitation days, very wet day precipitation and precipitation on wet days have significantly decreasing trends, whereas consecutive dry days increase significantly. In plateau sub-area, consecutive wet days have asignificantly decreasing trend. (2) Spatially, for consecutive dry days, most of places display increasing trends. The other indices show decreasing trends, mainly concentred in the middle and southeast of Hedong. (3) The departure sequence vibration of the extreme precipitation indices is quasi-20 years and 5-8 years. At the same time, the extreme precipitation indices reflect different structures which are more or less in different time scales. (4) For heavy precipitation days, consecutive dry days, very wet day precipitation and precipitation on wet days, the abrupt change is discovered in the 1970s, whreras the abrupt change of consecutive wet days and maximum 5-day precipitation happen is in the 1980s. (5) In the plateau sub-area, the variation of heavy precipitation days and consecutive wet days is not stable in future. Compared to the past, the other indices are consistent with patterns in future.

Key words: extreme precipitation consecutive dry days Morlet analysis Hedong area

Received: 24 October 2012 Published: 27 November 2012

ZTFLH:

P426.6



	Articles by authors
	LI Xiao-ya
	ZHANG Bo

Cite this article:

LI Xiao-ya, ZHANG Bo. Extreme Precipitation in 1960-2011 over Hedong Area of Gansu, China. JOURNAL OF DESERT RESEARCH, 2013, 33(6): 1884-1890.

URL:

http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00250 OR http://www.desert.ac.cn/EN/Y2013/V33/I6/1884

[1]Wang B L,Zhang M J,Wei J L,et al.Change in extreme events of temperature and precipitation over Xinjiang,Northwest China,during 1960-2009[J].Quaternary International,2013,298:141-151.

[2]Changnon S A,Pielk Jr R A,Changnon D,et al.Human factors explain the increased losses from weather and climate extremes[J].Bulletin of the American Meteorological Society,2000,81(3):437-442.

[3]Easterling D R,Evans J L,Ya Groisman P,et al.Observed variability and trends in extreme climate events:a brief review[J]. Bulletin of the American Meteorological Society,2000,81(3):417-425.

[4]王凌,高歌,张强,等.2008年1月我国大范围低温雨雪冰冻灾害分析[J].气象,2008,34(4):95-100.

[5]罗勇,孙颖,高学杰,等.气候变化研究关键科学问题进展[J].气候变化通讯,2003,2(2):15-18.

[6]Moberg A,Jones P D.Trends in indices for extremes in daily temperature and precipitation in central and western Europe,1901-99[J].International Journal of Climatology,2005,25(9)18:1149-1171.

[7]Groisman P Y,Knight R W,Easterling D R,et al.Trends in intense precipitation in the climate record[J].Journal of Climate,2005,18(9):1326-1350.

[8]IPCC.Climate Change 2007:The Physical Science Basis[R].Cambridge,United Kingdom:Cambridge University Press,2007:996.

[9]赵庆云,张武,王式功,等.西北地区东部干早半干早区极端降水事件的变化[J].中国沙漠,2005,25(6):904-909.

[10]翟盘茂,任福民,张强.中国降水极值变化趋势检测[J].气象学报,1999,7(2):208-217.

[11]潘晓华.中国近50年极端温度和降水事件研究[D].北京:中国气象科学研究院,2002.

[12]王颖.1955-2004年极端气温事件的时空变化特征研究[D].南京:南京信息工程大学,2006.

[13]赵庆云,赵红岩,刘新伟.西北东部极端降水事件及异常旱涝季节变化倾向[J].中国沙漠,2006,26(5):745-749.

[14]杨金虎,江志红,杨启国,等.中国西北汛期极端降水事件分析[J].中国沙漠,2007,27(2):320-325.

[15]杨金虎,江志红,王鹏祥,等.中国西北极端降水事件年内非均匀性特征分析[J].中国沙漠,2008,28(1):78-184.

[16]汪宝龙,张明军,魏军林,等.1960-2009年青海省极端降水事件的变化特征[J].水土保持通报,2012,32(4):92-96.

[17]姚宗国,赵光平,王咏青,等.西北太平洋台风对西北地区东部降水的影响分析[J].中国沙漠,2008,28(6):1157-1162.

[18]杨金虎,江志红,白虎志.西北区东部夏季极端降水事件同太平洋SSTA的遥相关[J].高原气象,2008,27(4):331-338.

[19]王兴梅,张勃,戴声佩,等.甘肃省黄土高原区夏季极端降水的时空特征[J].中国沙漠,2011,31(1):223-229.

[20]张延伟,姜逢清,魏文寿,等.1961-2004年新疆降水极值概率分布特征[J].中国沙漠,2012,32(2):503-508.

[21]施雅风,张祥松.气候变化对西北干旱区地表水资源的影响和未来趋势[J].中国科学(B辑),1995,25(9):968-977.

[22]施雅风.气候变化对西北华北水资源的影响[M].济南:山东科学技术出版社,1995:95-119.

[23]李玲萍,李岩瑛,钱莉,等.1961-2005年河西走廊东部极端降水事件变化研究[J].冰川冻土,2010,32(3):497-504.

[24]徐宗学,米艳娇,李占玲,等.和田河流域气温与降水量长期变化趋势及其持续性分析[J].资源科学,2008,30(12):1833-1838.

[25]王洁,徐宗学.白洋淀流域气温与降水量长期变化趋势及其持续性分析[J].资源科学,2009,31(9):1498-1505.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed