Related Experiment Video
Updated: Dec 25, 2025

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar
Published on: May 1, 2018
Rapid flood and damage mapping using synthetic aperture radar in response to Typhoon Hagibis, Japan
Cheryl W J Tay1, Sang-Ho Yun2, Shi Tong Chin3
1Asian School of the Environment, Nanyang Technological University, Singapore, Singapore. cheryl.tay@ntu.edu.sg.
Abstract:
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.
Related Concept Videos
Applications of GIS: Disaster Management and Emergency Response
Design Example: Analyzing Capacity Contours for Flood Risk Assessment
Responses to Drought and Flooding
Hazard Rate
Precipitation Gravimetry
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
Manipulation and Analysis

