东篱科研大数据发现系统（DRDS）

位置：成果数据库 > 期刊 > 期刊详情页

天山乌鲁木齐河源1号冰川消融对气候变化的响应

ISSN号：1673-1719
期刊名称：《气候变化研究进展》
时间：0
分类：P343.6[天文地球—水文科学;天文地球—地球物理学] P467[天文地球—大气科学及气象学]
作者机构：[1]中国科学院寒区旱区环境与工程研究所冰冻圈科学国家重点实验室／天山冰川站,兰州730000
相关基金：中国科学院知识创新工程重要方向项目（KZCX2-YW-127）;国家自然科学基金项目（40631001;40571033;40371028;J0630966）;中国沙漠气象科学研究基金项目（sqj2005002）资助;致谢：本文所用资料来自天山冰川站的长期观测,是不同时期天山冰川站人员努力的结果,在此表示衷心的感谢和敬意.近期冰川面积的测绘由井哲帆、周在明完成,某些照片由杨惠安、焦克勤提供,在此一并感谢.

作者：李忠勤[1], 沈永平[1], 王飞腾[1], 李慧林[1], 董志文[1], 王文彬[1], 王林[1]

关键词：冰川消融, 气候变暖, 天山, 乌鲁木齐河源1号冰川, glacier melting, climate warming, Tanshan Mountain, Urumqi Glacier No. 1

中文摘要：

目前气候变暖导致的冰川退缩,引起了全世界的广泛关注。以新疆天山乌鲁木齐河源1号冰川为例,根据1958年以来的观测资料,研究了冰川消融对气候变化的响应。结果表明,近50a来冰川在表面粒雪特征、成冰带、冰川温度、面积、厚度及末端位置等方面发生了显著变化,而这些变化均与气温的升高有着密切的联系;20世纪80年代以来的快速升温,使冰川的退缩出现了加速趋势,冰川融水径流量也呈加速增大趋势。

英文摘要：

Current glacier recession under climate warming has drawn widely attention around the world. Initiated from 1958, the observations of Urumqi Glacier No. 1 at the headwaters of Urumqi River in eastern Tianshan promise the best datasets of glacier and climate changes in China. Taking/Urumqi Glacier No. 1 as an example, this paper has analyzed the response of the glacier to the climate change. The results show that during the past 50 years, remarkable changes occurred on the glacier, including snow-firn stratigraphy, glacial zone, glacial temperature （borehole temperature）, glacier area, and glacier terminus position etc. These changes are found to be closely related to temperature rise in this area. The glacier retreat appeared throughout the entire observed time period and has shown an accelerated tendency during the last 20 years, particularly after 1995. In addition to summer temperature increase, other two reasons may also be responsible for the acceleration of glacier melting： one is the glacial temperature rise, which reduced the cold reserve in the glacier and thus increased the sensitivity of the glacier to air temperature rise; the other is the decrease of albedo on the glacier surface, which evidently enhanced absorption of radiation.

同期刊论文项目