MOM6-CICE6-datm-drof configurations for ACCESS-OM3

This repository contains several ACCESS-OM3 configurations using the following components:

• MOM6 ocean model
• CICE sea ice model
• DATM atmosphere data model
• DROF runoff data model

All the configurations use the payu workflow management tool.

Repository structure

Each configuration is stored as a git branch. Most of the branches are named according to the following naming scheme:

{nominal_resolution}deg_{forcing_data}_{forcing_method}

Additional required information, like if the configuration includes biogeochemistry, is appended to the name.

Currently the following configurations are available:

• 1deg_jra55do_ryf

Note that the main branch does not store any configuration, only some documentation.

This repository also contains the following configurations that are only used for testing ACCESS-OM3:

• gmom_jra: configuration based on the GMOM_JRA CESM compset.

These configurations should not be used for production runs.

Setting up an experiment

The first thing to do is to clone this repository. Although it is possible to directly clone the repository from the COSIMA organization, it is better to use a fork instead. This will allow you to push any changes you make to the configuration, as well as use the payu run log to keep track of your experiment in your fork on GitHub. Detailed instructions about how to set up a fork can be found here.

Once you have set up your fork, we recommend cloning to a directory with a unique name that reflects what you wish to run. This could simply be the name of the configuration you plan to run, but the more detailed the name is, the less likely a namespace clash will happen.

Finally, one needs to checkout the branch corresponding to the desired configuration. It is then good practice to start a new branch with the same name as your directory so you can use git to easily see how your run configuration differs from the original.

Here is an step-by-step example of how to set up a 1deg_jra55do_ryf experiment (called my_1deg_jra55do_ryf_experiment_name) after setting up your fork:

$ git clone [email protected]:<username>/MOM6-CICE6.git my_1deg_jra55do_ryf_experiment_name
$ cd my_1deg_jra55do_ryf_experiment_name
$ git checkout 1deg_jra55do_ryf
$ git checkout -b my_1deg_jra55do_ryf_experiment_name

Here <username> should be your GitHub user name.

By default, the payu run log is turned off, but you should turn it on so that your configuration settings will be recorded as the run proceeds. Simply edit the config.yaml file and change the following line:

runlog: false

to

runlog: true

Customising your experiment

See this section of the quick start instructions in the ACCESS-OM3 wiki.

Running your experiment

See this section of the quick start instructions in the ACCESS-OM3 wiki.

Pull requests

We welcome contributions from users of these configurations. If you make a configuration improvement which you think should be included in the COSIMA repository, push it to your fork and then do a pull request from the relevant branch in your fork to the branch it originated from in the COSIMA repository (not main).