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Sub-seasonal Levee Deformation Observed Using Satellite Radar Interferometry to Enhance Flood Protection
Işıl E Özer1, Stephan J H Rikkert2, Freek J van Leijen2
1Delft University of Technology, Faculty of Civil Engineering and Geosciences, Stevinweg 1, 2628 CN, Delft, The Netherlands. i.e.ozer@tudelft.nl.
Scientific Reports
|February 27, 2019
Summary
Continuous monitoring of levees using satellite radar interferometry reveals short-term swelling and shrinkage linked to weather. This enhances early detection of levee issues and improves safety assessments.
Area of Science:
- Geosciences
- Civil Engineering
- Remote Sensing
Background:
- Levees are crucial for flood protection but current visual inspections are infrequent and subjective.
- Limited data from traditional methods hinders timely detection of levee issues and safety assessments.
Purpose of the Study:
- To assess levee susceptibility to meteorological conditions using satellite radar interferometry.
- To correlate levee deformations with geohydrological properties and safety.
- To improve early warning systems for levee integrity.
Main Methods:
- Utilizing satellite radar interferometry for weekly, high-precision levee condition observations.
- Analyzing short-term swelling and shrinkage patterns in relation to meteorological data.
- Investigating the link between levee deformations, geohydrological factors, and safety.
Main Results:
- Levees exhibit short-term swelling and shrinkage influenced by meteorological conditions.
- Deformations can be quantitatively related to geohydrological properties and levee safety.
- Sub-seasonal levee behavior is understood in greater detail.
Conclusions:
- Satellite radar interferometry offers a precise, complementary method for levee monitoring.
- Understanding weather-induced deformations aids in predicting levee responses.
- This approach enhances the development of reliable early warning systems for levee safety.
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