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>
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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.