mdstephenserdc / nastyprisms

Containerized command line application to download and preprocess daily PRISM climate fields into a single Zarr Store.

nastyprisms

A simple containerized command-line application to download and process daily PRISM climate fields into a single Zarr Store.

Example

This script is usually run as from container as part of a larger orchestrated workflow on Kubernetes, but you can also run this locally. For example, this downloads a range of years and clips to a bounding box around California after reprojecting the climate data to EPSG:4326:

docker pull ghcr.io/brews/nastyprisms:0.2.0
docker run ghcr.io/brews/nastyprisms:0.2.0 \
  --firstyear 1999 \
  --lastyear 2000 \
  --variable "tmean" \
  --epsg "4326" \
  --clipbox "minlon=-125.0,minlat=32.0,maxlon=-114.0,maxlat=43.0" \
  --outzarr "gs://myscratchbucket/prism-tmean-1999-2000.zarr"

./example-workflow.yaml is an Argo Workflow using the nastyprisms container to download 3 separate variables in a way that balances reliable processing without beating the PRISM FTP server to death with requests.

Installation

Grab the latest copy of the container with

docker pull ghcr.io/brews/nastyprisms:latest

If you're tinkering with the source code the conda virtual environment specs used for container builds are in environment.yaml. We recommend you build your virtual environment with conda because this depends on several difficult-to-compile geospatial libraries.

Support

Source code is available online at https://github.com/brews/nastyprisms. This software is Open Source and available under the Apache License, Version 2.0.

Please file bugs at https://github.com/brews/nastyprisms/issues.

Feel free to fork the code and file a merge-request with bug fixes and improvements. Or just fork the code for yourself.

"nastyprisms" is a reference to Dan Meth's Frederator video "Pink Floyd's Syd Barrett Visits His Accountant". It's the only thing I could think of at the time that references "prism".