prop/lib
Graham McIntire 4fa67984f3
Split HRRR pressure levels for grid hot path vs per-contact profiles
The skew-T commit (30c1018) doubled @pressure_levels from 13 to 25 so
new contact fetches would cover the full troposphere. That list is
also what PropagationGridWorker pulls per forecast hour, which
doubled the GRIB footprint (~57 MB compressed + 92k points × 25
levels × 3 vars decoded through wgrib2) and pushed prod pods over
their 4 Gi OOMKill threshold. Every chain died during f00 and the
map timeline never got beyond now and now+1h because the .ntms files
for f02-f18 were never written.

Split the constant:

  * @profile_pressure_levels (25 levels, 1000-100 mb) drives the
    per-contact HrrrClient.fetch_profile path so the skew-T plot
    keeps its full-atmosphere trace.

  * @grid_pressure_levels (13 levels, 1000-700 mb) drives the grid
    hot path. That's the band SoundingParams.derive reads for
    min_refractivity_gradient, and native hybrid-sigma data
    (native_min_gradient) takes priority over the pressure-level
    fallback anyway, so upper-air levels contribute nothing to
    scoring — pure memory waste on this path.

build_profile/1 still iterates the full 25-level list; grid fetches
simply populate the 13 near-surface slots and skip the rest.

Makes HrrrClient.pressure_messages public with a :grid | :profile
variant so the split is testable from outside the module.
2026-04-15 08:19:33 -05:00
..
microwaveprop Split HRRR pressure levels for grid hot path vs per-contact profiles 2026-04-15 08:19:33 -05:00
microwaveprop_web Make the map timeline read .ntms files authoritatively 2026-04-14 17:42:30 -05:00
mix/tasks Drop propagation_scores table, ScoresFile is the only store 2026-04-14 15:13:01 -05:00
microwaveprop.ex initial 2026-03-28 11:28:47 -05:00
microwaveprop_web.ex Merge auth links into main nav and lower password min to 8 2026-04-08 10:39:51 -05:00