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feat(fires): MODIS in Active Fires and a Fire Perimeters layer (#737)

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Adds MODIS NRT to Active Fires and a keyless Fire Perimeters layer (NIFC WFIGS) with
InciWeb incident links, served through a capped, cached /api/fire-perimeters proxy.

Co-authored-by: Gustavo Beneduzi <[email protected]>
Co-authored-by: James Cooke <[email protected]>
This commit is contained in:
Bilawal SidhuGustavo BeneduziJames Cooke
 authored and GitHub committed 2026-09-23 21:21:52 -05:00
1 parent 4b56d0e917
commit f913066cf2
40 files changed
+3201 -26
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server/providers/firms.js
+11 -5
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@@ -8,10 +8,11 @@ import { filterTrailing24h, parseFirmsCsv } from '../../src/data/firmsCsv.js';
* Upstream: https://firms.modaps.eosdis.nasa.gov/api/area/csv/{KEY}/{SOURCE}/world/2
*
* Merges three VIIRS NRT sources (NOAA-20, NOAA-21, Suomi-NPP — independent
* satellites, no cross-source dedup) fetched sequentially with `days=2`
* (`days=1` means "current UTC day", nearly empty just after 00:00Z) and
* clamps to the trailing 24 h via src/data/firmsCsv.js. FIRMS quota is
* 5,000 transactions / 10 min per MAP_KEY, so the cache is the point:
* satellites, no cross-source dedup) plus MODIS_NRT (combined Terra+Aqua,
* ~1 km, numeric 0-100 confidence), fetched sequentially (quota courtesy)
* with `days=2` (`days=1` means "current UTC day", nearly empty just after
* 00:00Z) and clamps to the trailing 24 h via src/data/firmsCsv.js. FIRMS
* quota is 5,000 transactions / 10 min per MAP_KEY, so the cache is the point:
* TTL 30 min, single-flight refresh, serve-stale-on-failure, and a
* fresh-enough disk cache (.gev-cache/firms.json) prevents ANY upstream
* fetch across dev-server restarts. Pattern mirrors celestrakProxy.
@@ -28,7 +29,12 @@ import { filterTrailing24h, parseFirmsCsv } from '../../src/data/firmsCsv.js';
export function firmsProxy() {
const TTL_MS = 30 * 60_000;
const STATUS_TTL_MS = 5 * 60_000;
const SOURCES = ['VIIRS_NOAA20_NRT', 'VIIRS_NOAA21_NRT', 'VIIRS_SNPP_NRT'];
const SOURCES = [
'VIIRS_NOAA20_NRT',
'VIIRS_NOAA21_NRT',
'VIIRS_SNPP_NRT',
'MODIS_NRT',
];
const CACHE_DIR = path.join(process.cwd(), '.gev-cache');
const CACHE_PATH = path.join(CACHE_DIR, 'firms.json');