Coastal Lowlands' Inundation Risk Assessment with High-resolution TanDEM-X DEM in Qingdao Coastal Plains, China
<p>Global warming plays a principal role on the continuous increasing sea-level rise, which exposes coastal regions worldwide to flooding threat. However, the challenge is that the regional impact of SLR flooding can be variable, especially when considering multiple effects of land subsidence,...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2020-04-01
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| Series: | Proceedings of the International Association of Hydrological Sciences |
| Online Access: | https://www.proc-iahs.net/382/621/2020/piahs-382-621-2020.pdf |
| Summary: | <p>Global warming plays a principal role on the continuous increasing
sea-level rise, which exposes coastal regions worldwide to flooding threat.
However, the challenge is that the regional impact of SLR flooding can be
variable, especially when considering multiple effects of land subsidence,
long-term general sea-level rise and extreme weather conditions like storm
surge. In this paper, we build module with high-resolution InSAR-derived
precision DEMs with resolution of 4 m, long-term SLR trend and episodic
signals of climate change to calculate the relative sea level in AD 2100 on
various scenarios over the Jiaozhou Bay, one typical region of the biggest
peninsula in China and an important economic centre adjoining to the Yellow
Sea. The potential of TanDEM-X DEM for coastal vulnerability mapping in the
Qingdao coastal area were evaluated in order to investigate the effect of
the accuracy and resolution of coastal topography on the reliability and
usefulness of elevation-based sea-level rise assessments. The results reveal
that coastal lowland areas over the JiaozhouBay are extremely vulnerable in
the following years within 21st century with use of high-accuracy TanDEM-X
DEM data, which would be an advantage for further elevation-based dynamic
assessments of coastal inundation events considering storm surges, abnormal
high tides, and extreme precipitation events. which would be vital for
locally coastal protection and decision-making.</p> |
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| ISSN: | 2199-8981 2199-899X |