Rapid flood and damage mapping using synthetic aperture radar in response to Typhoon Hagibis, Japan

Rapid flood and damage mapping using synthetic aperture radar in response to Typhoon Hagibis, Japan

During the aftermath of Typhoon Hagibis, we made flood and damage proxy maps, rapidly derived from synthetic aperture radar (SAR) data using change detection approaches. The maps have large spatial coverage over the Tokyo, Fukushima, Ibaraki, Iwate, and Nagano prefectures of Japan. The maps are also...

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Bibliographic Details
Main Authors: Tay, Cheryl Wen Jing, Yun, Sang-Ho, Chin, Shi Tong, Bhardwaj, Alok, Jung, Jungkyo, Hill, Emma Mary
Other Authors: Asian School of the Environment
Format: Article
Language:English
Published: 2020
Subjects:
Science::Geology
Geographic Information System
Hurricane
Online Access:https://hdl.handle.net/10356/143282
https://doi.org/10.21979/N9/F8ONAM
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Institution: Nanyang Technological University
Language: English
Description
Summary:During the aftermath of Typhoon Hagibis, we made flood and damage proxy maps, rapidly derived from synthetic aperture radar (SAR) data using change detection approaches. The maps have large spatial coverage over the Tokyo, Fukushima, Ibaraki, Iwate, and Nagano prefectures of Japan. The maps are also largely in agreement with various validation sources including aerial imagery, optical imagery and news sources. Apart from visual maps, we provide flood and damage extents in various formats compatible with geographic information system (GIS) applications. The data may potentially be used for applications such as typhoon risk modelling, investigating spatial correlations of typhoon impacts, and comparing alternative flood or damage mapping techniques.

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