5 commits

Author	SHA1	Message	Date
Graham McIntire	5c5d398966	Make GRIB2 section parser resilient to trailing padding and truncation ... Instead of returning "malformed section" on trailing bytes or truncated sections, attempt to return parsed results. This handles older HRRR files (2019) that have padding bytes after the last section.	2026-03-30 09:21:27 -05:00
Graham McIntire	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
Graham McIntire	8bd0989fbe	Add HRRR model profile fetching for QSOs ... HRRR provides hourly 3km-resolution atmospheric profiles, filling the temporal gaps (12-hourly soundings) and spatial gaps (only 9 sounding stations) in our current weather data. - Add hrrr_profiles table and hrrr_queued flag on QSOs - HrrrClient fetches GRIB2 data via HTTP Range requests + wgrib2 - HrrrFetchWorker derives refractivity/ducting params via SoundingParams - QsoWeatherEnqueueWorker now also enqueues HRRR jobs - QSO show page displays HRRR section with collapsible profile - Dockerfile builds wgrib2 from source for production	2026-03-29 15:54:22 -05:00
Graham McIntire	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
Graham McIntire	6489f08138	Add weather data schema, context, sounding params, and IEM ingestion ... Store surface observations (ASOS) and upper-air soundings (RAOB) alongside QSOs for atmospheric propagation correlation. Three new tables: weather_stations, surface_observations, and soundings with JSONB profiles and pre-computed derived parameters (refractivity, gradients, duct detection, stability indices). Includes IEM API client for historical data import and import script seeded with 95 ASOS + 9 sounding stations from PropCast coverage area.	2026-03-28 15:57:19 -05:00