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  1. 防災科研関係論文

Mapping the inundated area caused by the July 2018 Western Japan torrential rain using multioral ALOS-2 data

https://nied-repo.bosai.go.jp/records/2954
https://nied-repo.bosai.go.jp/records/2954
c6b2a3ac-d085-43ca-b14a-2d578b1dbe3f
Item type researchmap(1)
公開日 2023-03-30
タイトル
言語 en
タイトル Mapping the inundated area caused by the July 2018 Western Japan torrential rain using multioral ALOS-2 data
著者 Wen Liu

× Wen Liu

en Wen Liu

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Fumio Yamazaki

× Fumio Yamazaki

en Fumio Yamazaki

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Yoshihisa Maruyama

× Yoshihisa Maruyama

en Yoshihisa Maruyama

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抄録
内容記述タイプ Other
内容記述 c 2019 IEEE. Successive heavy rainfall affected the western Japan from the late June to the early July 2018. Increased river water overflowed and destroyed river banks, which caused flooding in vast areas. In this study, two pre-event and one co-event ALOS-2 PALSAR-2 images were used to extract inundation areas in Kurashiki and Okayama Cities, Okayama Prefecture, Japan. First, the difference between the pre-event and co-event coherence values was calculated. The decreased coherence areas were extracted as possible inundation. Then the water regions were extracted by the threshold values from the threeoral intensity images. The increased water regions in July 2018 were obtained as inundation. Finally, the extracted results from the coherence and intensity images were merged to create an inundation map. The results were verified by comparing with a web-based questionnaire survey report and visual interpretation of aerial photos.
言語 en
書誌情報 en : 2019 Joint Urban Remote Sensing Event, JURSE 2019

発行日 2019-05
DOI
関連識別子 10.1109/JURSE.2019.8809061
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