icenet-dashboard-preprocessor

Converts daily IceNet netCDF prediction outputs to COG files + STAC catalogs for icenet-dashboard.

A command-line tool for generating Cloud Optimized GeoTIFFs (COGs) and STAC catalogs from IceNet forecast NetCDF files. It is outputs COGs in the necessary format to serve them using icenet-dashboard-preprocessor for use with the icenet-dashboard.

Features

• Converts IceNet NetCDF predictions into Cloud Optimized GeoTIFFs (COGs)
• Automatically reprojects to EPSG:3857 for Leaflet/web-map compatibility
• Builds STAC-compliant metadata catalogs for each forecast
• Supports compressed or uncompressed output
• Dynamically detects northern or southern hemisphere from input data

Installation

To use this tool, ensure the following dependencies are installed:

pip install xarray rioxarray pystac tqdm

Usage

icenet_dashboard_preprocess --input ./results/predict/*.nc

Flag	Description
--input, -i	One or more paths to .nc files or directories (wildcards supported).
--overwrite, -o	Overwrite existing GeoTIFF files if they already exist.
--no_compress, -c	Disable compression in generated GeoTIFFs (default is compressed).

Example

icenet_geotiff_generator_gen_cloud_tiffs -i results/predict/fc.2024-11-11_north.nc -o

This will:

• Detect the hemisphere automatically
• Convert each leadtime slice to a COG
• Process the COG outputs into data/cogs/{hemisphere}/{date}/
• Build a hierarchical STAC catalog in data/stac/

License

icenet-dashboard-preprocessor is licensed under the MIT license. See LICENSE for more information.