| 近50年祁连山西段夏季气候变化对冰川发育的影响 |
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| 引用本文： | 程瑛,徐殿祥,宋秀玲.近50年祁连山西段夏季气候变化对冰川发育的影响[J].干旱区研究,2009,26(2). |
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| 作者姓名： | 程瑛 徐殿祥 宋秀玲 |
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| 作者单位： | 1. 甘肃省气象局,兰州中心气象台,甘肃,兰州,730020
2. 酒泉市气象局,甘肃,酒泉,735000 |
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| 基金项目： | 科技部西部开发科技行动“祁连山空中云水资源开发利用研究”(2004BA901A16)资助 |
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| 摘 要： | 利用祁连山西段3个地面气象站历年夏季降水、气温及探空资料,建立祁连山西段山区的降水、气温序列。分析近50年来,祁连山西段山区夏季气候变化及其对冰川发育的影响。结果表明:祁连山西段山区夏季气温1957-1969年呈下降趋势,1970-1982年是最低时段,1983-1999年为持续迅速上升时段;夏季降水20世纪60年代较少,70-80年代较多,90年代又处于下降趋势,但较60年代多,2000年以后有上升趋势;冰川变化分3个阶段:1957-1967年为强消融期,1968-1985年为积累期,从1986年开始又进入消融期,尤其是1994-2003年消融不断加强。夏季雪线1957年至60年代较高,70-80年代雪线最低,90年代雪线升高,进入21世纪气温、雪线没有降低。
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| 关 键 词： | 夏季 降水 气温 雪线 气候变化 冰川发育 祁连山 |
Evaluation of the Effects of Summer Climate Change on Glacier Development in the West Qilian Mountain Over the Last 50 Years |
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| CHEN Ying,XU Dian-xiang,SONG Xiu-ling.Evaluation of the Effects of Summer Climate Change on Glacier Development in the West Qilian Mountain Over the Last 50 Years[J].Arid Zone Research,2009,26(2). |
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| Authors: | CHEN Ying XU Dian-xiang SONG Xiu-ling |
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| Institution: | 1.Lanzhou Central Observatory;Gansu Provincial Meteorological Bureau;Lanzhou 730020;China;2.Jiuquan Mereorological Bureau;Jiuquan 735000;Gansu Province;China |
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| Abstract: | In this study,climate change during summer and its effects on glacier development in on the west Qilian Mountain over the last 50 years were analyzed using precipitation and temperature data recorded at 3 meteorological stations and data from the surrounding Jiuquan region from 1957 to 2003.The results revealed that the temperature on the west Qilian Mountain in summer decreased between 1957 and 1969,with the lowest levels being observed between 1970 and 1982,but that it then sharply increased between 1983 ... |
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| Keywords: | summer precipitation temperature snowline climate change glacier development the Qilian Mountain Gansu Province |
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