Scale Dependent Diffusivity

Code for reproducing the analysis in the Nummelin et al (2020; Diagnosing the Scale and Space Dependent Horizontal Eddy Diffusivity at the Global Surface Ocean, JPO) results.

Workflow:

1. Copy the git repository
2. Get miniconda and setup the required python environment by running

   $ conda env create -f environment.yml
   

3. Go to data/raw/ and follow the instructions in the download.sh in order to download the data.
4. Go to side_packages and use the fetch.sh MicroInverse and naturalHHD packages from GitHub.
5. Once the data is downloaded and the required packages are in place, run the following

   python bin/process_SST.py                # Produce low-pass filtered SST
   python bin/process_eddy_atlas.py         # Bin the Eddy trajectories to a grid
   python bin/run_inversion.py              # Run the inversion
   python bin/run_HelmHoltzDecomposition.py # Run the Helmholtz-Hodge decomposition
   

6. At this point all the major data processing is done. The final step is to do some postprocessing and plot the figures in Nummelin et al. 2020.

   python bin/plotting/run_plotting.py
   

Please note that this project requires a large amount of data and reproducing all the steps will take a significant amount of computing time and power. Please be in touch if you are interested in specific parts of the full project.

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Project based on the cookiecutter science project template.