The Coastline Evolution Model (or CEM) is a one-contour line model that focuses on sandy, wave-dominated shoreline evolution, simulates the plan-view evolution of a coastline due to gradients in alongshore sediment transport. A unique aspect of CEM, by dividing the plan-view domain into a 2-dimensional cell array, is its ability to process an arbitrarily sinuous shoreline, allowing the simulation of complex shoreline features including spits and capes. The model is exploratory in nature, designed to simulate large-scale (10^3 to 10^6 m) and long-term (10^2 to 10^5 yr) shoreline evolution.

First create a build directory and then use cmake to generate a makefile,

> mkdir _build > cd _build > cmake .. 

Use the makefile to compile CEM,

> make 

Continuous integration is handled by Travis-CI. Every push to this GitHub repository triggers a new build on Travis. Travis builds CEM on both Mac and Linux and runs a simple smoke test to see that things are working. The .travis.yaml file controls how Travis builds and runs tests.

Build the old version of CEM,

> gcc main.c -o cem.exe 

To run this version of CEM, it's probably best to run it in another directory as it generates lots of output files,

> mkdir _run > cd _run > cem.exe