| 车尔臣河流域1955-2010年气候变化特征分析 |
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| 引用本文： | 黄玖珺.车尔臣河流域1955-2010年气候变化特征分析[J].新疆气象,2012,6(6):28-33. |
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| 作者姓名： | 黄玖珺 |
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| 作者单位： | 且末县气象局 |
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| 摘 要： | 摘 要：利用车尔臣河流域1955-2010年气温、降水、云量、浮尘、沙尘暴和大风等气象资料，分析了近56a来流域气候变化特征。结果表明:(1)车尔臣河流域年、季平均气温均呈明显上升趋势，以冬季增暖最显著；且在1990年前后出现了冷暖突变，2001-2010年是近56a来最暖的时期。(2)年、季降水量呈小幅增加趋势，春季降水增加趋势达显著水平；降水在1962年出现干湿突变，而1980s后降水增加则趋于平稳。(3)年、季平均总云量呈增加趋势，其中夏季云量的增加最明显。(4)年浮尘、沙尘暴和大风日数呈显著减少趋势，但值得注意的是2005年以后沙尘日数不降反升。总体上看，近56a车尔臣河流域气候朝暖湿方向发展，生态环境明显改善。
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| 关 键 词： | 车尔臣河 变化特征 趋势分析 突变 |
| 收稿时间： | 2011/11/12 0:00:00 |
| 修稿时间： | 2011/11/29 0:00:00 |
Climate Change Characteristic of Cherchen River Basin During Recent 56 Years |
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| huangjiujun.Climate Change Characteristic of Cherchen River Basin During Recent 56 Years[J].Bimonthly of Xinjiang Meteorology,2012,6(6):28-33. |
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| Authors: | huangjiujun |
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| Institution: | Qiemo Meteorological Bureau |
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| Abstract: | Based on the daily meteorologica data during 1955-2010 from Cherchen River Basin,analyzed the change characteristics of various climatic element,such as temperature,precipitation,cloud amount,dust days,sand storm days and strong wind days.The main results are as follows:(1)The annual mean temperature and seasonal mean temperature were obviously increasing,and especially there is remarkable increase in winter.Meanwhile the annual mean temperature had a sudden change in 1990.the period from 2001 to 2010 is the warmest in recent 56 years.(2)Annual precipitation and seasonal precipitation all presented faint increasing trend,especially in spring.The annual precipitation had a sudden change in 1962,and a stable period appeared since 1980s.(3)The annual cloud amount and seasonal cloud amount had also with obviously increasing trend,especially in summer.(4) The annual dust days,annual sand storm and strong wind days obviously decreased,however the dust and sand storm days increased since 2005 instead of decreasing,we should paid attention.The improvement of ecological environment is more obvious and the climate is being more warm and more wet in Cherchen River Basin. |
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| Keywords: | Cherchen River change characteristic trend analysis abrupt change |
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