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- Title
Object-Based Flood Analysis Using a Graph-Based Representation.
- Authors
Debusscher, Bos; Van Coillie, Frieke
- Abstract
The amount of freely available satellite data is growing rapidly as a result of Earth observation programmes, such as Copernicus, an initiative of the European Space Agency. Analysing these huge amounts of geospatial data and extracting useful information is an ongoing pursuit. This paper presents an alternative method for flood detection based on the description of spatio-temporal dynamics in satellite image time series (SITS). Since synthetic aperture radar (SAR) satellite data has the capability of capturing images day and night, irrespective of weather conditions, it is the preferred tool for flood mapping from space. An object-based approach can limit the necessary computer power and computation time, while a graph-based approach allows for a comprehensible interpretation of dynamics. This method proves to be a useful tool to gain insight in a flood event. Graph representation helps to identify and locate entities within the study site and describe their evolution throughout the time series.
- Subjects
EUROPEAN Space Agency; SYNTHETIC aperture radar; REPRESENTATIONS of graphs; GEOSPATIAL data; WEATHER; TIME series analysis; FLOODS
- Publication
Remote Sensing, 2019, Vol 11, Issue 16, p1883
- ISSN
2072-4292
- Publication type
Article
- DOI
10.3390/rs11161883