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Land use/land cover change (LUCC) as an important part of global environmental change has always been one of the hottest issues of ecology research. Based on RS and GIS methods, land use information for 1990 and 2008 was acquired from TM images and analyzed in Yanqing County, Beijing, China. This paper analyzes spatial-temporal land use change in two basins covering the study period. The results showed...
Based on Landsat-TM images, the flood disaster area was identified by Spectrum-photometric Method during Pakistan 2010 extra-large floods in this paper. According to the different period's images of pre-disaster and in-disaster, the flood bodies' range was extracted. On this basis, the disaster loss assessment including disastrous area, affected population, disastrous area of farmland (land use information),...
Particulate matter (PM) air-quality information is usually derived from ground based instruments. These measurements, while valuable, are not well suited to provide air-quality information over large spatial scales. In this paper, the extended dense dark vegetation algorithm is selected to retrieval the aerosol optical thickness using 6S radioactive transfer model based on Landsat TM data over the...
Using Beijing city as a case, firstly the Impervious Surface Percentage (ISP) are extracted by Linear Spectral Unmixing method in the paper, and the accuracy was tested by aerial photograph with high spatial resolution. Then the information of vegetation percentage, Normalized Difference Vegetation Index (NDVI) and Land Surface Temperature (LST) parameters were extracted from HJ-1B remote sensing...
Land subsidence in Changping, Beijing of China, has been an ongoing problem for the past four decades (since the later 1970s). We use permanent scatterers interferometric synthetic aperture radar (PS-InSAR) technique to detect and measure ground movement in this area. The detail information of deformation shows that spatial extent of subsidence is controlled by geologic structures (Huangzhuang-Gaoliying...
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