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canVODpy

canvod-store

PyPI Python License DOI

Versioned Icechunk stores for GNSS-T observations and VOD. canvod-store is a package of canVODpy, an open Python ecosystem for GNSS-Transmissometry canopy VOD retrievals.

What it does

  • Keeps the observations of a site in a GNSS store and its VOD in a VOD store, both Icechunk repositories of Zarr arrays.
  • Records every write as a commit, so earlier states of a store stay readable.
  • Keeps a log book of which file produced which data, so a file is never stored twice.

Install

uv add canvod-store

Most users install canvodpy, which includes this package, the command line, and the processing pipeline. canVODpy requires Python 3.14.

Example

from pathlib import Path
from canvod.store import open_gnss_store

store = open_gnss_store(Path("stores/ExampleSite/rinex"))
print(store.list_groups())  # one group per receiver
ds = store.read_group("canopy_01", date="2025001")

Documentation

How to cite

If you use canVODpy, please cite it with its DOI, 10.5281/zenodo.18496233, which always leads to the newest version. CITATION.cff has the full citation.

License

Apache License 2.0

Metadata

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