globalchange  > 气候变化与战略
CSCD记录号: CSCD:5389953
论文题名:
基于遥感资料的中亚阿拉套地区冰川变化及动因分析
其他题名: Glacier Variation and Motivation Based on Remote Sensing Data in the Central Asia Alatau Regions
作者: 何毅; 杨太保; 冀琴
刊名: 山地学报
ISSN: 1008-2786
出版年: 2015
卷: 33, 期:2, 页码:155-160
语种: 中文
中文关键词: 冰川变化 ; 退缩 ; GIS 和RS 技术 ; 周期性分析 ; 阿拉套
英文关键词: glacier changes ; Shrinkage ; GIS and RS ; cycle analysis ; Alatau Region
WOS学科分类: GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向: Geology
中文摘要: 以1990年、1999年、2006年和2013年的Landsat TM/ETM+及OLI/TIRS 遥感资料为数据源,通过计算机半自动解译及人工目视解译方法得到中亚阿拉套地区19902013年4景冰川数据,同时对研究区周边气温、降水进行趋势分析和周期性分析,并应用GIS 技术研究了过去近24年来冰川变化特征及其与气候变化的响应过程。结果表明: ①19902013年,中亚阿拉套地区冰川退缩明显,冰川总面积从680.73 km~2退缩到539.28 km~2,总面积减少了141.45 km~2,退缩率为20.78%,平均单条冰川面积减小0.12 km~2; ②19901999年、19992006年及20062013年3个时段年均退缩速率经历了慢快慢的过程,但后两个时段都较前一时段退缩快,表明自1999年以来阿拉套地区的冰川进入加速退缩的新阶段; ③大规模冰川分解使得小规模冰川的总面积和条数均有所增加; ④研究区处于气温偏高期,降水偏少期,区域变暖是该区冰川退缩的主要因素; ⑤通过分形理论对研究区冰川空间结构特征分析表明,预计未来该区冰川消融率将趋于稳定但仍处于较高状态; ⑥与中国天山各地区冰川变化进行对比,发现该地区冰川退缩速率较天山其他区域快。
英文摘要: In this paper,TM/ETM+and OLI/TIRS remote sensing datum from 1990,1999,2006 and 2011 were used as the data source. Through integrated computer semi-automatic interpretation and visual interpretation methods,glacier outlines were obtained in the Central Asia Alatau regions from 1990 to 2013.Meanwhile,we analyzed the surrounding study area temperature and precipitation trends and period,and we used GIS technology to analyze glacier variation characteristics and its response to climate change process in the past nearly 24a. The results showed that: ①Between 1990 and 2013,the Alatau region glaciers experienced an evident retreat trend,the total area of glaciers was from 680.73 km~2 to 539.28 km~2,the total area reduced 141.45 km~2,shrinking at a rate of 20.78%,with the average single glacier area decrease was 0.12 km~2. ②The average annual retreat rate experienced a "slow-fast-slow" process in 19901999,19992006 and 20062013 three times. However,after two periods were faster than the previous period,the glacier showed had entered a new phase of accelerated retreat since 1999 in Alatau region; ③Massive glacier decomposition made that a total area and the number of small-scale glaciers had increased; ④At the high temperatures and rainfall period of the study area,regional warming was a major factor glacial retreat; ⑤At the same time,the distribution characteristics of spatial structure for the glaciers were analyzed in Finally,based on the fractal theory,it showed that the melting rate of glaciers in the study area will remain high,but they will remain stable. ⑥Compared with China Tien Shan region glaciers,the Alatau region glaciers retreat exhibit rapid trend.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/149702
Appears in Collections:气候变化与战略

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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

Recommended Citation:
何毅,杨太保,冀琴. 基于遥感资料的中亚阿拉套地区冰川变化及动因分析[J]. 山地学报,2015-01-01,33(2):155-160
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