The CEM-WICH (CEM Web Interface and Coupling Helper) provides a web-based graphical user interface for running the CEM (Coastline Evolution Model). The GUI serves two purposes:

1. Simplifies the generation of CEM inputs
2. Automatically compares CEM outputs to Landsat images provided by Google Earth Engine (GEE)

The purpose of the CEM-WICH it to estimate the extent to which wave climate controls local shoreline morhpology at a location of interest.

The following sections provide instructions for setting up and running and instance of the CEM-WICH. For instructions on use, skip to Using the CEM-WICH

1. The Python environment is managed using Anaconda. To set up the environment:

   1. navigate to the project in an Anaconda command prompt
   2. conda env create -f environment.yml to create the environment
   3. conda activate cem-wich to activate the environment

2. Tha Javascript distribution is managed using gulpjs. To install gulp fuctions:

   1. npm install

3. The Flask server requires a Google Cloud service account to fufill Earth Engine requests.

   1. Follow instructions here to create a service account
   2. Place your private_key.json in the parent directory of the project

1. Build the C binary library using cmake:

   1. Navigate to server\C
   2. mkdir _build
   3. cd _build
   4. cmake ..
   5. make
   6. make install
   7. verify py_cem.dll or py_cem.so has been installed under server\C\_build

2. Package the client-side application using gulp:
   The application can be packaged either for production or debugging.

   • gulp debug places the original js files in the distribution folder
   • gulp build places concatenated and minified js in the distribution folder

Deploy the cem-wich with python cem_wich.py.