Investigating sediment supply impact on centennial saltmarsh biogeomorphic development with Demeter

This repository contains a series of simulations to investigate the impact of (changing) sediment supply on the long-term biogeomorphic development (200 years) of saltmarshes (4 km²). The model used is Demeter (https://doi.org/10.5281/zenodo.7101535). 

Each simulation output file contains:

• yearly bottom elevation maps (resolution of 5 m);
• yearly vegetation coverage maps (resolution of 5 m);
• yearly hydroperiod maps (resolution of 5 m);
• yearly exceeding bottom shear impulse maps (resolution of 5 m);
• vegetation distribution maps every 5 years (resolution of 50 cm).

Each simulation is also processed to compute channel network characteristics with TidalGeoPro (https://doi.org/10.5281/zenodo.7153257), such as:

• maximum upstream channel length along channel network skeleton every 20 years (resolution of 5 m);
• total upstream channel length within tidal watershed along channel network skeleton every 20 years (resolution of 5 m);
• tidal watershed surface area along channel network skeleton every 20 years (resolution of 5 m);
• mean unchanneled path length within tidal watershed along channel network skeleton every 20 years (resolution of 5 m);
• channel cross-section width, depth and area along channel network skeleton every 20 years (resolution of 5 m);
• yearly unchanneled path length maps (resolution of 5 m).

If you are interested to use this dataset, or collaborate with the authors, please contact Olivier Gourgue (ogourgue@gmail.com).