气候变化领域集成服务门户(CCPortal): 近30年来喜马拉雅山脉西段纳木那尼峰地区冰川变化的遥感监测研究

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	近30年来喜马拉雅山脉西段纳木那尼峰地区冰川变化的遥感监测研究
其他题名	Tupu of Glacier Variations in the Mt. Naimona' Nyi Region,Western Himalayas, in the Last Three Decades
	叶庆华; 陈锋; 姚檀栋; 王景华; 刘强; 张雪芹; 康世昌
发表日期	2007
ISSN	1007-4619
卷号	11 期号:4 页码:511-520
中文摘要	本文从1976,1990,1999的Landsat及2003年ASTER系列数字遥感影像上提取了喜马拉雅山脉西段纳木那尼峰地区的4期冰川空间分布数据,在Arc/Info中综合各期数据,建立研究区1976-2003年冰川变化图谱,定量分析了纳木那尼峰地区冰川的空间变化.图谱这种数据集成的方法明显优于直接将各期影像分类结果进行比较的传统研究方法.研究结果表明,纳木那尼峰地区的冰川以广泛退缩为主,但北部也有少量前进冰川存在.自1976年到2003年,冰川面积从84.41km~2减少到77.29km~2,各时段分别以平均0.17km/a,0.19km/a和0.77km/a的速度在退缩,冰川退缩明显加速.冰川退缩面积占研究区总面积的8.4%,明显比高亚洲冰川平均退缩比例(7%)大,表明西喜马拉雅山脉的冰川退缩比较严重.
英文摘要	This paper provides an alternative method of comprehensive research on glacier variation using multi-source and multi-temporal data. This work quantifies glacier variations of the Mt. Naimona' Nyi area by integrating glacier spatial data from ASTER and the Landsat series of satellite imagery at four different times; 1976, 1990, 1999, and 2003. Comparison of the results from individual images with those from the Tupu method indicates that the Tupu approach provides a better result in the research. Glacier variations were mapped and analyzed; discrepancies between images could be detected and removed from the integrated Grid data using remap tables in Arc/Info GRID module both graphically and numerically. Our results show that glaciers in the region both retreated and advanced during the last 28 years; however, retreat dominates and increases with time. The variation of glaciers in the western Himalayan region is dramatic compared with other regions in high Asia. From 1976 to 2003, glacier area decreased from 84.41km~2 to 77.29km~2. By the sequential images, it shows that glacier areas shrank by 0. 17km~2 a~(-1), 0. 19km a , and 0.77 km a , on average, during the periods 1976-1990, 1990-1999, and 1999-2003, respectively, suggesting that glacier retreat has accelerated. The retreat was most likely due to the negative glacial mass balance and was affected by rising temperature and decreasing precipitation in the region over the Tibetan Plateau.
关键词	冰川变化图谱基本单元纳木那尼峰
英文关键词	GIS;RS;glacier variation;GIS ( Geographical Information System );RS;Tupu;the integrated unit;Mt. Naimona'Nyi
语种	中文
来源期刊	遥感学报
来源机构	中国科学院西北资源环境生态研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/89708
推荐引用方式 GB/T 7714	叶庆华,陈锋,姚檀栋,等. 近30年来喜马拉雅山脉西段纳木那尼峰地区冰川变化的遥感监测研究[J]. 中国科学院西北资源环境生态研究院,2007,11(4):511-520.
APA	叶庆华.,陈锋.,姚檀栋.,王景华.,刘强.,...&康世昌.(2007).近30年来喜马拉雅山脉西段纳木那尼峰地区冰川变化的遥感监测研究.遥感学报,11(4),511-520.
MLA	叶庆华,et al."近30年来喜马拉雅山脉西段纳木那尼峰地区冰川变化的遥感监测研究".遥感学报 11.4(2007):511-520.