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Auswirkungen von anthropogenen Eingriffen und Klimawandel auf das Mekong Delta

Morphological evolution of the study area during the wet season for baseline scenario.

Christian Jordan, Jan Visscher, Nguyen Viet Dung, Heiko Apel, Torsten Schlurmann (2020). "Impacts of Human Activity and Global Changes on Future Morphodynamics within the Tien River, Vietnamese Mekong Delta", Water 2020, 12(8), 2204; doi.org/10.3390/w12082204

New results of a numerical study on the impacts of human activity and global changes on the morphodynamics of the Tien River (Vietnamese Mekong Delta) are presented by Christian Jordan, Jan Visscher, Nguyen Viet Dung, Heiko Apel and Torsten Schlurmann. Within the study, a hydro-morphodynamic model was used to investigate the impacts of the main drivers of future developments within the delta, including hydropower development, sand mining activity, climate change and relative sea level rise. Simulations were carried out for a baseline period (2000-2010) and for a future period (2050-2060). Results for the baseline period show that the study area is already subject to erosion under present-day conditions. For the future period, hydropower development has the highest impact on the evolution of the local mophology, followed by sand mining. Results also show that the combination of multiple drivers can significantly surpass the impact of single drivers, thus amplifying erosional processes. The present work is part of the research project Catch-Mekong (https://catchmekong.eoc.dlr.de/), which was funded by the BMBF (02WM1338D). The article was funded by the Open Access fund of the Leibniz Universität Hannover and is available online under this link.