AIS Downloader
==============

The :class:`AISDataDownloaderDuckDB` class downloads historical AIS vessel-traffic
data from Marine Cadastre and stores it efficiently in a local DuckDB database
with Parquet files for fast spatial and temporal queries.

.. autoclass:: ecosound.environment.ais_downloader.AISDataDownloaderDuckDB
   :members:
   :undoc-members:
   :show-inheritance: