Snow Today Webapp Server

Generate and serve data supporting the Snow Today Webapp.

Static data is version-controlled in this repository. Daily dynamic data (e.g. Cloud-Optimized GeoTIFFs) are generated by executing code in this repository.

More on data served by Snow Today Webapp Server

NOTE: Because there is a co-dependency between the dynamic data-generation code and the static configuration code, they are intentionally versioned together in this repository.

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

This package requires a webserver to host its data, as well as GDAL for creating Cloud-Optimized GeoTIFFs.

Installation

docker compose build

Usage

Ensure envvars $ENVIRONMENT and $STORAGE_DIR are set appropriately, e.g.:

export ENVIRONMENT=dev  # default: production
export STORAGE_DIR=/tmp/snow-today-data

STORAGE_DIR is expected to contain an incoming subdirectory where daily data will arrive, and cogs and plots directories, where outputs will be written.

Start the data server

docker compose up -d data-server

Ingest data

./scripts/container_cli.sh --help
./scripts/container_cli.sh make-cogs-daily
./scripts/container_cli.sh make-plot-json-daily

Troubleshooting

Webserver 403 errors

Permissions on a directory are not set correctly. Need ugo+rx. In an NSIDC deployment, an operator can correct this on the storage back-end.

License

See LICENSE.

Contributing

See contributing docs.