tilfluktsrom/SOURCES.md
Ole-Morten Duesund 5fd76678d4 Legg til sentralisert datakildeoversikt (SOURCES.md)
Samlar all attribusjon og lisensinformasjon for eksterne datakjelder
(Geonorge, OpenStreetMap, DSB) i éi fil. Førebur for issue #9
(internasjonale datakjelder).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-09 09:41:48 +01:00

1.7 KiB

Data Sources

Centralized list of all external data sources used by the app. This is the authoritative reference for attribution, licensing, and usage context.

Sources

Source Provider URL Usage License Used in
Shelter data (GeoJSON) Geonorge / DSB nedlasting.geonorge.no/... Shelter locations, capacity, addresses (~556 shelters) NLOD 2.0 app/.../data/ShelterRepository.kt, pwa/scripts/fetch-shelters.ts
Map tiles OpenStreetMap tile.openstreetmap.org Offline-capable map display ODbL app/ via OSMDroid, pwa/src/ui/map-view.ts via Leaflet
Civil defense guidelines DSB (Direktoratet for samfunnssikkerhet og beredskap) dsb.no/sikkerhverdag/egenberedskap Emergency instructions shown in the civil defense info dialog Norwegian public sector information app/.../res/values/strings.xml (civil_defense_* strings)

Notes

  • Shelter data is downloaded as a ZIP containing GeoJSON in EPSG:25833 (UTM33N) projection. The app converts coordinates to WGS84 at parse time.
  • Map tiles are cached locally by OSMDroid (Android) and the service worker (PWA) for offline use. OpenStreetMap's tile usage policy applies.
  • Civil defense guidelines are adapted from official DSB recommendations, not quoted verbatim. Content is available in English, Bokmal, and Nynorsk.