干旱区生态环境知识资源中心(Arid): 1972~2013年东天山博格达峰地区冰川变化遥感监测

Arid

	1972~2013年东天山博格达峰地区冰川变化遥感监测
其他题名	Remote Sensing Detection of Glacier Changes in Dong Tianshan Bogda Region in 1972-2013
	何毅; 杨太保; 陈杰; 冀琴
来源期刊	地理科学
ISSN	1000-0690
出版年	2015
卷号	35 期号:7 页码:925-932
中文摘要	利用1972年MSS,1990、1999年TM和2013年ETM+遥感影像资料作为数据源,通过目视解译结合GIS技术,提取博格达峰地区4期冰川边界,同时对研究区周边气温降水进行趋势分析和周期分析,研究其与冰川的响应关系。结果表明:1 1972~2013年冰川面积退缩了23.79%(占1972年),退缩速率为0.58%/a。1972~1990年冰川退缩较慢,为0.38%/a,近20 a来冰川退缩加剧,达到0.74%/a;2冰川规模越小,退缩越快;3东南坡退缩最快,东坡次之,北坡最慢;4冰川退缩比率随坡度的变化呈正态分布;5研究区处于气温偏高期,降水偏少期,气候变暖是冰川退缩的主要原因;6对比发现该地区与天山其他区域冰川退缩速率相吻合。
英文摘要	Mountain glaciers are important fresh water resources in the arid region and they are also one of potential climate indicators because of their sensibility to climate changes. With the background of Global Warming since the 20th century, the widespread retreats of mountain glaciers in China have had a profound impact on local people’s lives, the environment and socio-economic survival, under this condition, we can not only understand the characteristics and trends of glacier change, but also understand the relationship of glacier response to climate change, and thus likely to predict future changes in glacier. Research on glacier change has been limited in Chinese Tien Shan Mountains, despite the fact that the number of glaciers in the Tien Shan Mountains is the largest among all mountain ranges in China, and the glaciers in this region provide very important water resources for local economic development and drinking water for man use. The Bogda Peak regions belong to Tien Shan. Therefore, monitoring Bogda Peak region the changes of glaciers is essential. Moreover, the melt water in Bogda Peak region is a reliable supply of water for Aries River Basin, the Turpan-Hami basin and basin Chaiwopu, so the scientific value is a lot. Based on the Landsat 1972 MSS, 1990 TM, 1999 TM and 2013 ETM+ remote sensing image datum, the glacier information of four periods in the study area was extracted by using visual interpretation and GIS. Meanwhile, the surrounding climate datum were also analyzed in this paper. The results showed that: 1) During 1972-2013, glacier areas in study region decreased by 23.79% of 1972, the average annual withdrawal rate was 0.58%. In1972-1990, the glaciers retreated slowly, with an average annual withdrawal rate of 0.38%, glaciers retreat increased in the last 20 years, an annual retreat rate of 0.74%; 2) The smaller glaciers displayed a higher shrinkage rate than the larger glaciers; 3) The southeastern slope of study area retreated fastest, following east slope, northern slope was the slowest; 4) The retreat ratios of glaciers in the study area showed normal distribution trends with slope changes; 5) Glaciers of the study area were mainly distributed at the altitude ranging from 3 600 to 4 200 m, there was a clear increasing trend, especially in low altitude; 6) In the region, warming trend was obvious, while precipitation changed little, Rising temperature was the main reasons for the study area glacial retreat; 7) Compared with other regions in Tien Shan of China, this region glaciers retreat was consistent with other Tien Shan regions; 8) It is difficult to analysis glacier changes for our study in the long run for lacking of Multi-temporal remote sensing records. There are also many errors in the process of extracting glaciers because its surroundings about the spectral characteristic are close. As a result,it affects the accuracy of the monitoring of glacier changes.
中文关键词	冰川变化 ; 气候响应 ; 遥感监测 ; 博格达峰
英文关键词	glacier change climate response remote sensing monitoring Bogda Peak
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:5488380
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232474
作者单位	兰州大学资源环境学院冰川与生态地理研究所, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	何毅,杨太保,陈杰,等. 1972~2013年东天山博格达峰地区冰川变化遥感监测[J]. 兰州大学,2015,35(7):925-932.
APA	何毅,杨太保,陈杰,&冀琴.(2015).1972~2013年东天山博格达峰地区冰川变化遥感监测.地理科学,35(7),925-932.
MLA	何毅,et al."1972~2013年东天山博格达峰地区冰川变化遥感监测".地理科学 35.7(2015):925-932.