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10 commits

Author SHA1 Message Date
e7a7ae073d Phase 9.3, 9.4, and Phase 3 NEXRAD pipeline
Task 9.3 - Weight recalibration via gradient descent:
- Recalibrator module fits logistic regression weights using Nx
- Trains on QSO positives vs random baseline negatives
- Cross-validates by month, normalizes weights to sum to 1.0
- Mix task: mix recalibrate_scorer --sample 5000 --epochs 2000

Task 9.4 - Side-by-side scorer comparison:
- ScorerDiff.compare/3 re-scores grid with old vs new weights
- Reports mean diff, regressions, improvements, per-band breakdown
- Mix task: mix scorer_diff --new-weights '{...}'

Phase 3 - NEXRAD ingestion pipeline:
- NexradClient fetches IEM n0q composite PNGs, extracts per-point
  box statistics (mean/max dBZ, texture variance)
- NexradObservation schema with unique (lat, lon, observed_at)
- NexradWorker on :nexrad queue for background processing
- nexrad_texture backtest feature in Features module
- mix nexrad_backfill --limit 200

All tasks added to AdminTaskWorker and Release for production use.
1116 tests, 0 failures.
2026-04-10 12:48:36 -05:00
1d86e287b2 Add password auth with callsign + email confirmation
Generated Accounts context, User schema, and controllers via
phx.gen.auth. Adapted it for password-only login with required
email confirmation:

- Users have callsign (unique, uppercased), name, email, password
- Registration form fields: callsign, name, email, password, confirm
- Magic-link login path removed; login is email + password only
- After register, a confirmation email is sent and login is blocked
  until the account is confirmed via the token URL
- Confirmation link logs the user in on first use
- SMTP2GO configured as the outgoing mailer in k8s prod
2026-04-08 10:21:40 -05:00
40d1fa03aa
QSO submission triggers enrichment directly, fix prod badarith crash
- Add enqueue_for_qso/1 to directly enqueue weather/HRRR/terrain/IEMRE
  jobs for a single user-submitted QSO (no cron, no bulk processing)
- Submit flow calls enqueue_for_qso instead of generic enqueue worker
- Add enrichment queues to prod config for on-demand processing
- Guard against HRRR fill values in store_hrrr_profiles (fixes badarith)
- Filter QSOs without pos2 in build_terrain_jobs
2026-03-31 12:29:39 -05:00
105298fc3f
Add FreshnessMonitor GenServer to detect and fill stale propagation data
Replaces the one-shot startup Task with a GenServer that checks every
5 minutes whether propagation scores are older than 2 hours. If stale,
enqueues a PropagationGridWorker job (with dedup check to avoid double
queuing). Disabled in test env to avoid SQL Sandbox conflicts.
2026-03-31 12:08:51 -05:00
2ae60d036b
Add SRTM auto-download on tile miss from AWS Terrain Tiles
When a local .hgt tile is missing, download it from the public AWS S3
skadi bucket, decompress with zlib, and write to the tiles directory
before retrying the lookup. Falls back to Open-Meteo/OpenTopo APIs if
the download fails.
2026-03-30 08:36:21 -05:00
5a9359191f
Replace wgrib2 with pure Elixir GRIB2 decoder for HRRR pipeline
Eliminates the external wgrib2 C tool dependency that blocked HRRR
processing. Implements Lambert Conformal projection, simple packing
(Template 5.0), complex packing with spatial differencing (Template 5.3),
and GRIB2 section parsing — enough to extract point values from HRRR
grid data using only Elixir.
2026-03-29 18:43:43 -05:00
45e2e69361
Add SRTM terrain path profiles for QSOs
Fetch elevation data along the path between two stations via the
Open-Meteo Elevation API (with Open-Topo-Data fallback), compute
Fresnel zone clearance, earth bulge, and knife-edge diffraction loss,
and store the results per QSO.

- terrain_profiles table with migration and TerrainProfile schema
- ElevationClient with batched API calls and fallback
- TerrainAnalysis with Fresnel/diffraction physics (ITU-R P.526-15)
- TerrainProfileWorker on Oban :terrain queue
- QsoWeatherEnqueueWorker enqueues terrain jobs automatically
- QSO show page displays verdict badge and collapsible elevation table
- Reorder show page: terrain, soundings, solar, HRRR, surface obs
- Fix Dockerfile wgrib2 build (add cmake dependency)
2026-03-29 16:22:29 -05:00
5124cc09c1
Add IEM rate limiting, Req retry, and Oban retry for failed weather fetches
IEM was returning 503s under 10 concurrent workers. Three fixes:
- Req transient retry with exponential backoff on IEM requests
- WeatherFetchWorker Oban job retries failed ASOS/RAOB fetches 2-3h later
  with random jitter to avoid thundering herd
- Import script concurrency reduced 10→5, weather queue capped at 3
2026-03-29 13:24:52 -05:00
6f16395f44
Add QSO import, solar indices, Oban workers, LiveView UI, and parallel weather import
- Radio context with QSO schema and CSV import script (58K contacts)
- Solar index schema, GFZ client, and daily Oban cron worker
- LiveView dashboard with QSO table and weather correlation views
- Parallelize weather import script using Task.async_stream (10 concurrent workers)
- Replace sequential rate_limit sleeps with concurrency-based backpressure
- Atomic progress counter for interleave-safe reporting
2026-03-29 13:04:55 -05:00
bc674f0d54
initial 2026-03-28 11:28:47 -05:00