2023 CSDMS meeting-052: Difference between revisions
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{{CSDMS meeting abstract title temp2023 | {{CSDMS meeting abstract title temp2023 |
Latest revision as of 15:44, 26 May 2023
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Equilibrium elevation of the lower Ganges-Brahmaputra-Meghna Delta
Chris Tasich,
Vanderbilt University Nashville , United States. chris.tasich@gmail.com
The natural elevation of the vast, flat landscape of the lower Ganges-Brahmaputra-Meghna (GBM) remains remarkably stable despite persistent relative sea level rise (rSLR). This stability stems from the tight coupling of the land and tides through a robust negative feedback induced by periodic flooding with sediment-rich water. As water levels increase, the inundation depth and duration also increase resulting in more sediment deposition. This has a stabilizing effect and largely negates the initial increase in water level such that the elevation surface appears unchanged. We refer to this stable elevation as the equilibrium elevation.