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标题：TEMPORAL ANALYSIS OF URBAN EXPANSION IN EROSION RISK AREAS USING REMOTE SENSING AND GEOPROCESSING TECHNIQUES
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作者：Mario VALERIO FILHO ; Carlos Roberto SERAFIM ; Luiz Alberto Vieira DIAS 等
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2000
卷号：XXXIII Part B7(/1-4)
页码：1573-1579
出版社：Copernicus Publications
摘要：Most Brazilian cities grow-up chaotically. The urban occupation frequently occurs without considering the physical environment, interfering negatively with the population quality of life, causing many negative consequences at short, medium and long range. The municipality of S.o José dos Campos had an accelerated growth during the last two decades, especially in the Eastern and Southern regions, where urban occupation occurred at inadequate places. The result of such an unordered occupation is an environmental disturbance, high costs for the Government, and risks for the population. This study presents a methodological approach for the use of aerial photography at scales 1:25,000 and 1:8,000 that were obtained in 1985 and 1997. These data were analyzed and interpreted according to remote sensing procedures, and the result is a map of the urban growth areas in the Eastern sector of S.o José dos Campos for the two dates under study. In order to evaluate the urban growth on erosion risk areas, a potential erosion risk chart was used for the area under study. Using geoprocessing techniques, comparisons were made between the erosion potential chart and the human occupation for the period under study, and several risk classes for this area were established. So it was possible to quantify the urban growth rate for the period, as well as expansion over erosion risk areas
关键词：urban growth; temporal analysis; erosion risk; remote sensing; geoprocessing