Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1117/12.413954 |
A RS/GIS study of rapid erosion in SE Spain using ERS SAR multitemporal interferometric coherence imagery | |
Liu, JG; Hilton, F; Mason, P; Lee, H | |
通讯作者 | Liu, JG |
会议名称 | Conference on Remote Sensing for Agriculture, Ecosystems, and Hydrology II |
会议日期 | SEP 25-27, 2000 |
会议地点 | BARCELONA, SPAIN |
英文摘要 | Soil erosion is a widespread problem in semi-arid Mediterranean countries where irregular, intense rainfall can result in rapid erosion in areas of steep slope, soft lithology and sparse vegetation. This paper presents an integrated remote sensing/GIS approach to identify areas vulnerable to rapid erosion in Almeria Province, Southeast Spain. ERS SAR multitemporal interferometric coherence imagery is used to extract information on the erosion process, which causes random changes in the micro-topography of the land surface. This results in reduced coherence of the radar signals between the initial and eroded states. A known case of rapid erosion within the study area has been investigated using coherence images with 70, 140 and 210 days temporal separation (Liu et al., 1999)(1). A GIS is now used to derive criteria for a set of environmental conditions causing susceptibility to rapid erosion. Slope is extracted from SAR interferometr; vegetation and lithology from ETM+ imagery. The areas predicted to be most vulnerable to rapid erosion across the imagery are then identified. The methodology provided by our study will help local land management authorities to understand where this type of erosion may occur. The research is supported by the ESA ERS AO3-113 project. |
英文关键词 | rapid erosion detection INSAR coherence GIS semi-arid region |
来源出版物 | REMOTE SENSING FOR AGRICULTURE, ECOSYSTEMS, AND HYDROLOGY II |
ISSN | 0277-786X |
出版年 | 2001 |
卷号 | 4171 |
页码 | 367-375 |
ISBN | 0-8194-3827-8 |
出版者 | SPIE-INT SOC OPTICAL ENGINEERING |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | England |
收录类别 | CPCI-S |
WOS记录号 | WOS:000168322100038 |
WOS类目 | Agriculture, Multidisciplinary ; Ecology ; Geosciences, Multidisciplinary ; Remote Sensing ; Water Resources |
WOS研究方向 | Agriculture ; Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Water Resources |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/293587 |
作者单位 | (1)Univ London Imperial Coll Sci Technol & Med, TH Huxley Sch Environm Earth Sci & Engn, London SW7 2BP, England |
推荐引用方式 GB/T 7714 | Liu, JG,Hilton, F,Mason, P,et al. A RS/GIS study of rapid erosion in SE Spain using ERS SAR multitemporal interferometric coherence imagery[C]:SPIE-INT SOC OPTICAL ENGINEERING,2001:367-375. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。