Skip to main content

A simple diffusive landscape evolution model

Project description

flem

https://img.shields.io/pypi/v/flem.svg https://img.shields.io/travis/johnjarmitage/flem.svg Documentation Status https://mybinder.org/badge_logo.svg https://github.com/johnjarmitage/io-page/blob/master/static/images/flem.gif

A simple diffusive landscape evolution model

Installation

  • flem requires Python 3.7
  • flem requires fenics, gdal, and a bit more. Fenics is best installed using conda. Therefore before installing first get yourself Anaconda (the 3.7 version) or if you prefer it light, miniconda.
  • create a directory of your choice and create an environment.yml file containing the following:
name: flem
channels:
  - conda-forge
  - defaults
dependencies:
  # flem requires
  # need to be specific for mshr and fenics
  - fenics=2019.1.0=py37_1
  - mshr=2019.1.0=py37h7596e34_1000
  - gdal
  - peakutils
  - matplotlib
  - scipy
  - pip
  - pip:
    # flem requires
    - flem
    - elevation
prefix: /srv/conda
  • from the terminal run: conda env create -f environment.yml
  • check out this notebook for how to run flem.
  • or see run_models.py for a more clunky example.

What is flem?

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

History

0.1.0 (2019-05-21)

  • First release on PyPI.

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

flem-0.1.1.tar.gz (12.5 MB view hashes)

Uploaded source

Built Distribution

flem-0.1.1-py2.py3-none-any.whl (11.3 kB view hashes)

Uploaded py2 py3

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor NVIDIA NVIDIA PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page