Model-Observations Comparison

Model-Observations Comparison#

These tutorials and projects all use CrocoCamp, and are expected to run on NCAR’s Casper machine. If you want to run them outside of Casper, see below.

Installing CrocoCamp#

To install CrocoCamp, open a terminal session and run

git clone https://github.com/CROCODILE-CESM/CrocoCamp.git --branch 2025-Crocodile-Workshop --single-branch
cd CrocoCamp
./install.sh
conda activate crococamp-2025

Note that the CrocoLake’s project does not need CrocoCamp: CrocoLake is a dataset, not a python package, and installing dask, cartopy, and matplotlib is sufficient to read it and make maps. However, CrocoCamp comes with those packages, so if you have installed it already during the workshop, you can directly use the crococamp-2025 environment to run CrocoLake’s project too.

CrocoCamp outside of Casper#

CrocoCamp uses DART under the hood, and for this workshop we have set up a DART executable on Casper. If you need to run CrocoCamp outside of Casper, you basically need to compile DART on the machine where you want to run it.

On Derecho#

Make sure the following modules are loaded (use module load to load them):

  • ncarenv

  • craype

  • intel

  • ncarcompilers

  • cray-mpich

  • hdf5

  • netcdf

Build DART (I suggest in the work folder):

cd $WORK/
git clone https://github.com/CROCODILE-CESM/DART.git DART-derecho
cd DART-derecho
cd build_templates
cp mkmf.template.intel.linux mkmf.template
cd ../models/MOM6/work
./quickbuild.sh

CROCODILE-CESM/DART.git contains the latest developments made in the CROCODILE framework. They will be merged in the official DART when relevant.

You can now set up your config.yaml files to point to the correct path, replacing:

perfect_model_obs_dir: /path/to/DART/models/MOM6/work/

with

perfect_model_obs_dir: $WORK/DART-derecho/models/MOM6/work/

or the path you chose.

On your machine#

Installing DART differs from machine to machine and we refer you to DART’s installation guide.

Once you installed DART succesfully, you can set perfect_model_obs_dir in your config file to point to models/MOM6/work/ from the DART root directory.

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