Character and Distribution of Short-duration Precipitationin Southeast Gansu, China

doi:10.7522/j.issn.1000-694X.2013.00167

JOURNAL OF DESERT RESEARCH

2013, Vol. 33

Issue (4): 1184-1190 DOI: 10.7522/j.issn.1000-694X.2013.00167

Weather and Climate

Character and Distribution of Short-duration Precipitationin Southeast Gansu, China

ZHANG Zhi-xian1,2,3, ZHANG Qiang1,2,4, ZHAO Qing-yun5, ZHANG Li-yang2

1.Gansu Key Laboratory of Arid Climatic Change and Reducing Disaster/Key Open Laboratory of Arid Climatic Change and Disaster Reduction of CMA, Institute of Arid Meteorology, China Meteorological Administration, Lanzhou 730020, China;
2.College of Atmospheric Sciences, Lanzhou University, Lanzhou 730000, China;
3.Unit of 93808 of Peoples Liberation Army, Yuzhong 730109, Gansu, China;
4.Gansu Meteorological Administration, Lanzhou 730020, China;
5.Lanzhou Meteorological Center, Lanzhou 730020, China

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Abstract

In this paper, the character of the short-duration precipitation in the southeast Gansu were analyzed using hourly precipitation data in 2009-2010 and daily precipitation data during 1971-2000 in Gansu province. The main precipitation time section concentrates from April to September and precipitation during the period accounts for more than 80%. Precipitation rapidly increases from northwest to southeast in the studied area, but on the other hand, the high and low centers more than other districts on the plateau, probably caused by plateau terrain and monsoon. The short-duration precipitation have their maximum values around late-afternoon, but with the precipitation duration increase, the maximum values gradually move to early morning and the amplitude decreases. The short-duration precipitation accounts for the maximum proportion not only for frequency but also for contribution to total precipitation. The 40.3% of precipitation processes belong to short-duration precipitation even more than 90% for some stations. In a word, the short-duration precipitation is an important precipitation type. The 19.4% of short-duration precipitation is heavy precipitation, also proved that short-duration heavy precipitation is an important part of short-duration precipitation. Analysis of the diurnal variation of short-duration precipitation events shows that the frequency reaches the maximum value toward evening and the second highest value at midnight. In addition, we find that the precipitation-concentration degree is quite large, basically above the 0.6, precipitation-concentration period mostly located in July and August.

Key words: short-duration precipitation duration time precipitation-concentration degree precipitation-concentration period diurnal variation

Received: 04 May 2012 Published: 31 May 2012

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	Articles by authors
	ZHANG Zhi-xian1
	2
	3
	ZHANG Qiang1
	2
	4
	ZHAO Qing-yun5
	ZHANG Li-yang2

Cite this article:

ZHANG Zhi-xian1,2,3, ZHANG Qiang1,2,4, ZHAO Qing-yun5, ZHANG Li-yang2. Character and Distribution of Short-duration Precipitationin Southeast Gansu, China. JOURNAL OF DESERT RESEARCH, 2013, 33(4): 1184-1190.

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http://www.desert.ac.cn/EN/10.7522/j.issn.1000-694X.2013.00167 OR http://www.desert.ac.cn/EN/Y2013/V33/I4/1184

[1]Jones P D,Moberg A.Hemisphere and large-scale surface air temperature variations:an extensive revision and an update to 2001[J].Journal of Climate,2003,16:206-223.

[2]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.

[3]冯建民,郑广芬,陈豫英,等.宁夏连阴雨(雪)过程变化规律研究[J].中国沙漠,2011,31(6):1590-1597.

[4]林纾,陆登荣,王毅荣,等.1960年代以来西北地区暴雨气候变化特征[J].自然灾害学报,2008,17(3):16-21.

[5]Yu R C,Zhou T J,Xiong A Y,et al.Diurnal variations of summer precipitation over contiguous China[J].Geophysical Research Letters,2007,34(1),L01704.

[6]Wang Y,Zhou L,Hamilton K P.Effect of convective entrainment/detrainment on simulation of tropical precipitation diurnal cycle[J].Monthly Weather Review,2007,135(2):567-585.

[7]Zhou T J,Yu R C,Chen H M,et al.Summer precipitation frequency,intensity,and diurnal cycle over China:a comparison of satellite data with rain gauge observations[J].Journal of Climate,2008,21:3997-4010.

[8]戴泽军,宇如聪,陈昊明.湖南夏季降水日变化特征[J].高原气象,2009,28(6):1463-1470.

[9]刘晓云,李栋梁,王劲松.1961—2009年中国区域干旱状况的时空变化特征[J].中国沙漠,2012,32(2):473-483.

[10]陈少勇,郭玉珍,郑延祥,等.甘肃旱作农业区降水对土壤水分的影响[J].中国沙漠,2012,32(1):155-162.

[11]Zhou T J,Yu R C.Atmospheric water vapor transport associated with typical anomalous summer rainfall patterns in China[J].Journal of Geophysical Research,2005,110(D8):D08104.

[12]孙昭萱,张强.黄土高原半干旱区陆面温度和能量的气候特征分析[J].中国沙漠,2011,31(5):1302-1308.

[13]张庆云,陶诗言,张顺利.夏季长江流域暴雨洪涝灾害的天气气候条件[J].大气科学,2003,27(6):1018-1030.

[14]Li J,Yu R C,Zhou T J.Seasonal variation of the diurnal cycle of rainfall in southern Contiguous China[J].Journal of Climate,2008,21:6036-6043.

[15]Yu R C,Xu Y P,Zhou T J,et al.Relation between rainfall duration and diurnal variation in the warm season precipitation over central eastern China[J].Geophysical Research Letters,2007,34(13):L13703.

[16]Zhang L J,Qian Y F.Annual distribution features of precipitation in China and their interannual variations[J].Acta Meteorological Sinica,2003,17(2):146-163

[17]杨金虎,李耀辉,王鹏翔.中国极端强降水事件年内非均匀性特征分析[J].自然资源学报,2007,22(4):623-633.

[18]张录军,钱永甫.长江流域汛期降水集中程度和洪涝关系研究[J].地球物理学报,2004,47(4):622-630.

[19]李红梅,周天军,宇如聪.近四十年我国东部盛夏日降水特征变化分析[J].大气科学,2008,32(2):358-370.

[20]白肇烨,徐国昌.中国西北天气[M].北京:气象出版社,1988:117-127.

[21]雷雨顺.特大暴雨的夜间多发性[J].自然杂志,1980,10:774-777.

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