The River Bathymetry Toolkit (RBT) is a flood analysis addon for ArcMap 10.X. Seems potentially versatile enough to also be utilized in ocean level rise, and other uses? Originally developed by USDA Forest Services - RMRS, it is distributed by essa.com apparently under a "free" single-user license. I have seen it used in natural hydrology projects and think it has real potential as a Qgis plug-in.
Any coders or sponsors interested in working with us to approach these guys about adapting it for Qgis?
Thanks, Tim Milling Ecologist DTE Environmental Services www.dteenv.com