Land Use Change Monitoring Based On HJ-1A/1B Imagery in the Three Gorge Region
Land use change information is an important regional geo-hazards analysis factor in geo-hazards monitoring,and it can provide a reference for follow-up hazard risk warning.The technology of independent satellite land use remote sensing monitoring is now becoming more mature.Taking Fuling District of the Three Gorges region as the study area,this paper uses two different temporal HJ-1A images for analyzing land use change of Fuling District.After preprocessing,the classified images are produced by likelihood classification.Finally,result analysis is based on the classified images,and only the NDVI images and Water body vector data are used for the aim of geo-hazards warning analysis.Change analysis results show that water area expanded,civil land increased a little,and other is relatively unchanged.
geo-hazards HJ-1 preprocessing land use change likelihood classification
Wei Xia Yumin Tan Yi Zhao
School of Transportation Science & Engineering Beihang University Beijing, China
国际会议
兰州
英文
1-4
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）