МЕТОДИКА ОПРЕДЕЛЕНИЯ ЗАТОПЛЕННЫХ РАЙОНОВ ПО ДАННЫМ РАДИОЛОКАЦИОНЫХ ИЗОБРАЖЕНИЙ ENVISAT ASAR

Наводнение дистанционное зондирование ENVISAT SAR классификация ущерб.

ФОРМИРОВАНИЕ ПРИСПОСОБЛЕННОСТИ ЖИВОТНЫХ К ТЕМПЕРАТУРАМ СРЕДЫ, СПЕЦИФИЧЕСКАЯ ПАРАИММУНИЗАЦИЯ ПРИ САЛЬМОНЕЛЛЕЗЕ ПОРОСЯТ, ...

Vestnik OrelGAU, 1(52), February 2015 УДК / UDC 528.854.2 APPLICATION OF REMOTE SENSING TO EXTRACT FLOOD AREAS USING ENVISAT ASAR DATA МЕТОДИКА ОПРЕДЕЛЕНИЯ ЗАТОПЛЕННЫХ РАЙОНОВ ПО ДАННЫМ РАДИОЛОКАЦИОНЫХ ИЗОБРАЖЕНИЙ ENVISAT ASAR Trinh Le Hung*, Candidate of Technical Sciences Чинь Ле Хунг, кандидат технических наук Le Quy Don Technical University, Hanoi, Vietnam Andrade E.R.M, Post-graduate student Эдгар Рубен Монтель Андраде, аспирант Moscow State University of Geodesy and Cartography, Moscow, Russia Pham Tuan Anh, Master of Science Фам Туан Ань, магистр Forest Inventory and Planning Institute, Hanoi, Vietnam *E-mail: trinhlehung125@gmail.com ABSTRACT Flooding is the most common natural disaster and can occur anywhere. <...> Heavy rain is the most frequent cause of floods, but there are many other natural triggers, including hurricanes, tidal surges, ice jams and snow melt. <...> Radar images with many advantages over optical images such as no cloud coverage or solar illumination problem have been effectively used for flood monitoring. <...> In this study, for extraction of flooded areas, pre and post event ENVISAT ASAR satellite images were analyzed. <...> АННОТАЦИЯ Наводнение является наиболее распространенным стихийным бедствием и может произойти в любом месте. <...> Полученные результаты могут использовать для оценки риска и ущерба от наводнений. <...> Floods are the most frequent and costly natural disasters in Bangladesh resulted from typical tropical monsoon climatic features, in addition to the intensifying topographic characters and recent climate change. <...> So, SAR image appear highly to plain flood monitoring over large areas due to the appropriateness of its wide coverage and all weather capacity [1-5]. <...> One of the major advantages of using SAR images corresponds to the ease of distinguishing between water and other classes, given by the high contrast that exits. <...> Water bodies act as a mirror reflecting surface, their response is low backscatter coefficient in SAR 36 Vestnik OrelGAU, 1(52), February 2015 images and then looks like a dark area [6 <...>

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