青藏高原近30年现代雪线遥感调查
张瑞江, 赵福岳, 方洪宾, 曾福年
中国国土资源航空物探遥感中心,北京100083
Remote Sensing Survey of Existing Snowlines in the Past 30 Years in Qinghai-Tibet Plateau
ZHANG Rui-Jiang, ZHAO Fu-Yue, FANG Hong-Bin, ZENG Fu-Nian
China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China
摘要 通过对青藏高原现代冰川分布区ETM遥感图像的分析研究,提出了利用遥感图像确定现代雪线高度的方法; 基本查明了青藏高原各山系的现代雪线高度,以及近30 a来现代雪线高度的变化状况。调查结果显示: 青藏高原现代雪线高度在4 000~6 000 m,并呈现自东向西逐渐升高的分布规律; 青藏高原现代雪线有上升、下降和基本不变3种变化方式,以上升为主,且与现代冰川的演变关系密切。
关键词 :
数字地球 ,
三维模型 ,
小波描述 ,
视相关面
Abstract : Based on the study and analysis of ETM images of glacier distribution in Qinghai-Tibet Plateau, this paper puts
forward a new method for ascertaining the altitudes of existing snowlines. With this method, the altitudes of existing
snowlines in different ridges of Qinghai-Tibet Plateau as well as the variations of existing snowlines from the middle of
the 1960’s approximately to the 2000’s were detected. The investigation results show that the altitudes of existing
snowlines in Qinghai-Tibet Plateau range between 4 000 m and 6 000 m. The snowlines ascend gradually from the east to the
west of Qinghai-Tibet Plateau. There are three ways of the variation of existing snowlines in Qinghai-Tibet Plateau:
rising, lowering and basic stableness, with the rising of the existing snowlines in Qinghai-Tibet Plateau being dominant.
The change of existing snowlines is closely related to the evolution of existing glaciers.
Key words :
Digital earth
3D modeling
Wavelet-based representations
View-dependent mesh
收稿日期: 2010-04-21
出版日期: 2010-11-13
基金资助: 中国地质调查局地质调查项目“青藏高原生态地质环境遥感调查与监测”(编号: 1212010510218)。
通讯作者:
张瑞江(1966-),男,教授级高级工程师,主要从事遥感地质研究。
引用本文:
张瑞江, 赵福岳, 方洪宾, 曾福年. 青藏高原近30年现代雪线遥感调查[J]. 国土资源遥感, 2010, 22(s1): 59-63.
ZHANG Rui-Jiang, ZHAO Fu-Yue, FANG Hong-Bin, ZENG Fu-Nian. Remote Sensing Survey of Existing Snowlines in the Past 30 Years in Qinghai-Tibet Plateau. REMOTE SENSING FOR LAND & RESOURCES, 2010, 22(s1): 59-63.
链接本文:
https://www.gtzyyg.com/CN/10.6046/gtzyyg.2010.s1.14
或
https://www.gtzyyg.com/CN/Y2010/V22/Is1/59
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