e3sm_to_cmip

A cli utility to transform E3SM model output into CMIP compatible data.

Documentation

Installation

There are two ways to install the e3sm_to_cmip package. Either use (1) the pre-built conda package through conda-forge, which will bring all the dependencies with it, or (2) setup the local development environment to install dependencies and use the source code directly.

(1) Conda

You can install the e3sm_to_cmip conda package directly from the conda-forge channel:

conda create -n e2c -c conda-forge e3sm_to_cmip

Get a copy of the CMIP6 Controlled Vocabulary tables

git clone https://github.com/PCMDI/cmip6-cmor-tables.git

(2) Conda Development Environment and Source Code

First, clone the repo and set up the conda dev environment:

git clone https://github.com/E3SM-Project/e3sm_to_cmip.git
cd e3sm_to_cmip
conda env create -f conda-env/dev.yml
conda activate e3sm_to_cmip_dev

Once you have dev environment setup, simply run:

python -m pip install .

Example

Here's an example of the tool usage, with the variables tas, prc, and rlut. The time-series files containing the regridded output are in a directory named input_path, and a directory named output_path will be used to hold the CMIP6 output. A copy of an example metadata definition file (default_metadata.json) can be found here.

e3sm_to_cmip -v tas, prc, rlut --realm atm --input ./input_path/ --output ./output_path/ -t ~/cmip6-cmor-tables -u default_metadata.json

This will produce a directory tree named CMIP6 below the output_path, with the CMIP6 directory tree based on the metadata json file.