| 1961--2005年阿勒泰地区5—9月分级降水的气候特征 |
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| 引用本文： | 李春芳,白松竹,刘大锋.1961--2005年阿勒泰地区5—9月分级降水的气候特征[J].新疆气象,2008,2(4):25-27. |
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| 作者姓名： | 李春芳 白松竹 刘大锋 |
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| 作者单位： | 阿勒泰地区气象台,新疆阿勒泰836500 |
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| 摘 要： | 利用阿勒泰地区7个站1961-2005年5—9月逐日降水资料，研究阿勒泰分级降水雨日、雨量的时空分布特征及变化趋势。指出：阿勒泰5—9月小雨雨日最多，雨量最大。雨日和雨量的空间分布特点是：西部山区有效雨日和雨量最多，平原雨日多，雨量少，东部山区雨日少，雨量多。阿勒泰地区有效雨日和雨量西部、中部、南部呈不明显增加趋势，东部山区为明显增加趋势，主要由中量以上雨日和雨量的增加引起？
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| 关 键 词： | 分级降水 有效降水 雨日 降雨量 |
The Climatic Features of Grading Precipitation During May-Sep.in Aletai of 1961-2005 |
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| LI Chun-fang,BAI Song-zhu and LIU Da-feng.The Climatic Features of Grading Precipitation During May-Sep.in Aletai of 1961-2005[J].Bimonthly of Xinjiang Meteorology,2008,2(4):25-27. |
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| Authors: | LI Chun-fang BAI Song-zhu and LIU Da-feng |
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| Institution: | LI Chun-fang BAI Song-zhu LIU Da-feng (Aletai Meteorological Observatory, Aletai 836500, China) |
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| Abstract: | Based on the daily precipitation observational data （May-Sep.）at 7station during the period of 1961-2005, the secular trend and the temporal-spatial distribution of features of grading precipitations rain days and rainfall in Aletai is studied. It is pointed out that the mean rain days of light rain is the most and its rainfall is the largest in five-month. For the rain days and rainfall of efficient precipitation, it is the most in the west mountainous, besides, the rain days is more and the rainfall is less in the plain, and the rain days is less and the rainfall is more in the east mountainous for each month. In Aletai Region, the rain days and the rainfall of efficient precipitation characterized a weak increasing trend except east mountainous. To be caused by the rain days of above medium amounts and moderate rain is increased, it is represented mainly an obvious increasing trend in the east mountainous. |
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| Keywords: | grading-precipitation efficient precipitation rain day rainfall |
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