Dalbi · gelbe-welle.json · waterways-de.json
============================================

These Databases are made available under the
Open Database License (ODbL) v1.0:
  https://opendatacommons.org/licenses/odbl/1-0/

Any individual contents of the Database are licensed under the
Database Contents License (DbCL) v1.0:
  https://opendatacommons.org/licenses/dbcl/1-0/


Sources and per-source licenses
-------------------------------

* OpenStreetMap data
  © OpenStreetMap contributors, available under the ODbL v1.0.
  https://www.openstreetmap.org/copyright

* Wasser- und Schifffahrtsverwaltung des Bundes (WSV) — federal
  waterway network. Licensed under Datenlizenz Deutschland –
  Namensnennung – Version 2.0:
  https://www.govdata.de/dl-de/by-2-0

* waterways-de.json — routable waterway graph. Merges the WSV
  federal waterway network (dl-de/by-2-0) with OpenStreetMap
  waterways and lake geometries (© OpenStreetMap contributors,
  ODbL v1.0). The merged file is an ODbL Derivative Database.

* Wikidata
  Available under CC0 1.0 (public domain dedication).
  https://creativecommons.org/publicdomain/zero/1.0/

* Wikipedia / Wikimedia Commons photo metadata
  Per-image: CC0, CC BY, or CC BY-SA — see the per-record
  `images.{hero,gallery}.license` and `attribution` fields.

* Mapillary photo metadata
  CC BY-SA 4.0, contributors as listed in `images.*.attribution`.
  https://creativecommons.org/licenses/by-sa/4.0/

* DTV "Gelbe Welle"
  Identifier match only — no DTV data is redistributed.
  "Gelbe Welle" and the associated logo are marks of the
  Deutscher Tourismusverband (DTV).


Attribution required when reusing this Database
------------------------------------------------

Per ODbL §4.3, any Public Use of this Database or a Derivative
Database must include the following notice:

    "Contains information from Dalbi (https://dalbi.app/data/),
     which is made available under the ODbL."

Per OpenStreetMap's standard, the upstream attribution must also
be carried in any visible map or listing rendered from this data:

    "© OpenStreetMap contributors"


Share Alike
-----------

If you publish a Derivative Database, you must make it available
under the ODbL v1.0 (see ODbL §4.5).

Produced Works (rendered maps, search results, screenshots) are
not subject to Share Alike.


Provenance and changes
----------------------

The dataset is derived from OpenStreetMap (Overpass), the WSV
public WMS/WFS service, Wikidata, and Wikimedia Commons, with a
local enrichment + cleanup pipeline. The current pipeline version
and refresh date are recorded in the `_metadata` block at the top
of `gelbe-welle.json` and in `CHANGELOG.txt`.

Contact: hello@dalbi.app  ·  https://dalbi.app