Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
HESS
Articles | Volume 27, issue 11
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.
https://doi.org/10.5194/hess-27-2257-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 27, issue 11
Research article
 | 
15 Jun 2023
Research article |  | 15 Jun 2023

Assessing land elevation in the Ayeyarwady Delta (Myanmar) and its relevance for studying sea level rise and delta flooding

Katharina Seeger, Philip S. J. Minderhoud, Andreas Peffeköver, Anissa Vogel, Helmut Brückner, Frauke Kraas, Nay Win Oo, and Dominik Brill

Supplement

https://doi.org/10.5194/hess-27-2257-2023-supplement

Data sets

Local digital elevation model for the Ayeyarwady Delta in Myanmar (AD-DEM) derived from digitised spot and contour heights of topographic maps Katharina Seeger, Philip Simon Johannes Minderhoud, Andreas Peffeköver, Anissa Vogel, Helmut Brückner, Frauke Kraas, Nay Win Oo, and Dominik Brill https://doi.org/10.5281/zenodo.7875964

FABDEM V1-0 adjusted for the Ayeyarwady Delta in Myanmar by local spot height data from topographic maps Katharina Seeger, Philip Simon Johannes Minderhoud, Andreas Peffeköver, Anissa Vogel, Helmut Brückner, Frauke Kraas, Nay Win Oo, and Dominik Brill https://doi.org/10.5281/zenodo.7875855

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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.
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