Articles | Volume 27, issue 11
https://doi.org/10.5194/hess-27-2257-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-27-2257-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
15 Jun 2023
Research article |
| 15 Jun 2023
| 15 Jun 2023
Assessing land elevation in the Ayeyarwady Delta (Myanmar) and its relevance for studying sea level rise and delta flooding
Institute of Geography, University of Cologne, Albertus-Magnus-Platz, 50923 Cologne, Germany
Philip S. J. Minderhoud
Soil Geography and Landscape group, Wageningen University & Research,
Droevendaalsesteeg 3, 6708 PB Wageningen, the Netherlands
Department of Civil, Environmental and Architectural Engineering,
University of Padova, Via Marzolo 9, 35131 Padova, Italy
Department of Subsurface and Groundwater Systems, Deltares Research
Institute, Daltonlaan 600, 3584 BK Utrecht, the Netherlands
Andreas Peffeköver
Institute of Geography, University of Cologne, Albertus-Magnus-Platz, 50923 Cologne, Germany
Anissa Vogel
Institute of Geography, University of Cologne, Albertus-Magnus-Platz, 50923 Cologne, Germany
Helmut Brückner
Institute of Geography, University of Cologne, Albertus-Magnus-Platz, 50923 Cologne, Germany
Frauke Kraas
Institute of Geography, University of Cologne, Albertus-Magnus-Platz, 50923 Cologne, Germany
Nay Win Oo
East Yangon University, East Yangon University Road, Thanlyin
Township, Thanlyin 11291, Myanmar
Dominik Brill
Institute of Geography, University of Cologne, Albertus-Magnus-Platz, 50923 Cologne, Germany
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Short summary
Accurate elevation data is essential for flood risk assessment. We assess land elevation to local mean sea level of the Ayeyarwady Delta with a new, local DEM based on geodetic data and evaluate the performance of 10 global DEMs in an SLR impact assessment. Our study reveals major differences in performance between global DEMs and consequentially introduced uncertainty in SLR impact assessments, indicating potential similar uncertainties for other data-poor coastal lowlands around the world.
Accurate elevation data is essential for flood risk assessment. We assess land elevation to...
