| --- |
| pretty_name: South Australia fire layers |
| license: cc-by-4.0 |
| license_link: https://creativecommons.org/licenses/by/4.0/ |
| tags: |
| - geospatial |
| - bushfire |
| - fire-history |
| - emergency |
| - south-australia |
| --- |
| |
| # South Australia fire layers |
|
|
| Statewide fire layers published on Data.SA by the Department for Environment and Water and the SA Country Fire Service, as the |
| GeoJSON files exactly as published plus two sets of vector tiles, checked weekly and rebuilt when a source changes by |
| [AlreadyOpen/sa-fire](https://github.com/AlreadyOpen/sa-fire). Every feature and every field of each source is kept. |
|
|
| | Layer | Source | Holds | |
| |---|---|---| |
| | `fire-history` | [Bushfires and Prescribed Burns History](https://data.sa.gov.au/data/dataset/e5434c77-9815-48e6-8ea7-fb35c78f6786) (Department for Environment and Water) | Every mapped bushfire and prescribed burn on record (`INCIDENTTY`, `FIREDATE`, `FIREYEAR`, `HECTARES`) | |
| | `last-fire` | [Last Bushfire and Prescribed Burn Boundaries](https://data.sa.gov.au/data/dataset/e81e147c-aba1-4d92-acf3-8cd5163c1104) (Department for Environment and Water) | The most recent fire at each place: the time since fire | |
| | `bushfire-management-areas` | [Bushfire Management Areas](https://data.sa.gov.au/data/dataset/d93dc636-ec20-45f2-beb0-998b1c5f438c) (SA Country Fire Service) | The nine bushfire management areas | |
| | `emergency-location-markers` | [Emergency Location Markers](https://data.sa.gov.au/data/dataset/52e3d746-c8d1-407f-8561-d2afcd5f6ef5) (Department for Environment and Water) | Numbered markers on trails and parks to tell emergency services where you are | |
|
|
| Per layer: |
|
|
| - **`*_GDA2020.geojson`** and **`*_GDA94.geojson`** (in this dataset; the GDA2020 file also on the |
| [bucket](https://huggingface.co/buckets/alreadyopen/sa-fire)): the source's GeoJSON files, byte for byte, with their |
| original names. GDA2020 is EPSG:7844, which web maps can use as WGS 84 (they differ by under 2 m); GDA94 is EPSG:4283. |
| - **`<layer>.pmtiles`** (bucket, read by browsers), **lossless**: zooms 4 to 14, every field plus `fid` (the feature's |
| position in the GDA2020 file, from 0). No feature or tile size limit, no tiny-polygon reduction and no point thinning (`-r1`) at any zoom; shapes are |
| simplified below zoom 14. **Zoom 14 holds every feature** at full detail (the bake fails otherwise); a polygon too thin to |
| survive the zoom-14 grid is also given as a point on its surface, with `tiny_polygon_point: true`. |
| - **`<layer>-thinned.pmtiles`** (bucket), **thinned**: tippecanoe's defaults plus `--drop-densest-as-needed`, zooms 4 to 14. |
| Features are left out where tiles get dense, so lower zooms show fewer of them. `index.json` counts what each zoom keeps. |
|
|
| `index.json` holds the counts (features in each GeoJSON; features at zoom 4 and 14 of each tile set), each source's URL, |
| Last-Modified, ETag and size. `manifest.json` lists every file's sha256. Built with tippecanoe 2.79.0. |
|
|
| ## Sources and terms |
|
|
| Data from the Department for Environment and Water, Government of South Australia, and the SA Country Fire Service, Government of South Australia, published |
| on [Data.SA](https://data.sa.gov.au) under [Creative Commons Attribution 4.0](https://creativecommons.org/licenses/by/4.0/) |
| (the licence note in the Bushfire Management Areas zip, dated 2015, names CC BY 3.0 Australia). Changes: the tiles are a |
| conversion of the GeoJSON; the GeoJSON files are unchanged; nothing removed. Provided as is, with no warranty, not endorsed by |
| the Government of South Australia. Not a warning service: for fires now, go to the [CFS](https://www.cfs.sa.gov.au/). |
|
|
