flem 0.1.0

Requirements

This library requires an installation of fenics (https://fenicsproject.org/). It also requires gdal (https://gdal.org/download.html). These can be installed through conda using the requirements_conda.txt. There is a further requirements.txt for libraries that are then installed through pip.

Features

This is a set of functions written in python to solve for sediment transport. At the base it solves the concentrative-diffusive equations described by Smith & Bretherton (1972) [1]. These are solved using a simple finite element scheme using the fenics library. Surface run-off is routed either from model node-to-node or cell-to-cell (see Armitage, 2019) [2].

The model can be started either with a initial condition of a uniform elevation with some noise added, or a SRTM 30m DEM defined by west, south, east, north coordinates.

[1] - https://doi.org/10.1029/WR008i006p01506

[2] - https://doi.org/10.5194/esurf-7-67-2019

List of things to do:

1. Add the choice to change precipitation rates

2. Add the choice for boundary conditions