Annualmeeting:2017 CSDMS meeting-106
Modeling Elevation Equilibrium and Human Adaptation in Southwest Bangladesh
- Jonathan Gilligan, Vanderbilt University Nashville Tennessee, United States. firstname.lastname@example.org
- Steven Goodbred, Vanderbilt University Nashville Tennessee, United States. email@example.com
- Richard Hale, Old Dominion University Norfolk Virginia, United States. firstname.lastname@example.org
- Carol Wilson, Louisiana State University Baton Rouge Louisiana, United States. email@example.com
Our sediment model employs a basic mass balance of sediment accumulation as a function of tidal height, SSC, settling velocity, and dry bulk density. Tidal height is determined from pressure sensors and superimposed sea level rise rate, as defined by the representative concentration pathways of the IPCC. SSC varies within a tidal cycle (0-3 g/L) and seasonally (0.15-0.77 g/L). Multiple grain sizes (14-27 µm) are used as proxies for settling velocity by Stokes’ Law. Dry bulk density (900-1500 kg/m3) is determined from sediment samples at depths of 50-100 cm. The human dimension is introduced through an agent-based model for community decision-making regarding TRM.