Enhanced Sea Ice CDR

Enhanced SeaIce CDR (ECDR) enables the creation of the 12.5km SeaIce CDR.

Please note that this repository is a work in progress and breaking changes are to be expected. Initial work on this repository is specific to NSIDC's internal systems and may not work as expected for external collaborators.

Level of Support

• This repository is not actively supported by NSIDC but we welcome issue submissions and pull requests in order to foster community contribution.

See the LICENSE for details on permissions and warranties. Please contact nsidc@nsidc.org for more information.

Requirements and installation

This code relies on the python packages defined in the included environment.yml file.

Use conda or mamba to install the requirements:

$ conda env create

To activate the environment:

$ conda activate pm_tb_data

Usage

seaice_ecdr is primarily interacted with through it's CLI. To utilize the CLI, use the provided scripts/cli.sh:

$ ./scripts/cli.sh  --help
Usage: python -m seaice_ecdr.cli.entrypoint [OPTIONS] COMMAND [ARGS]...

  Run the Sea Ice EDCDR.

Options:
  --help  Show this message and exit.

Commands:
  idecdr  Run the initial daily ECDR algorithm with AMSR2 data.
  nrt     Run NRT Sea Ice ECDR.

Logging

By default, logs are written to disk at /share/apps/G02202_V5/{ECDR_PRODUCT_VERSION}/{YYYY-MM-DD}.log. Up to 31 of these logs can exist at once (older log files get removed).

During large re-processing efforts, it may be desirable to temporarily disable logging to improve processing speed and reduce disk usage. To do so, set the DISABLE_FILE_LOGGING envvar to TRUE.

export DISABLE_FILE_LOGGING=TRUE

Development/contributing

See doc/development.md for more information.

License

See LICENSE.

Code of Conduct

See Code of Conduct.

Credit

This software was developed by the National Snow and Ice Data Center with funding from NOAA.