prop/lib/microwaveprop/weather/hrrr_climatology.ex
Graham McIntire 51e390959c Add dialyzer specs and types across the codebase
277 @spec/@type annotations added to 58 files covering all public
APIs: contexts (propagation, radio, weather, terrain, beacons,
commercial), GRIB2 decoders, terrain analysis, duct detection,
rain scatter, CSV/ADIF import, weather clients, and all Ecto
schemas. Dialyzer passes with 0 errors.
2026-04-12 08:55:04 -05:00

37 lines
1.2 KiB
Elixir

defmodule Microwaveprop.Weather.HrrrClimatology do
@moduledoc """
Pre-computed mean and stddev of surface temperature from
`hrrr_profiles`, keyed on `(lat, lon, month, hour)`.
Used by Phase 6 to compute temperature anomaly: how much hotter
(or cooler) a given hour is compared to the same grid cell's
typical value for that month and time of day. The meteorologist
noted that extremely hot days (~10°F above normal in summer)
produce enhanced ducting even in the afternoon when the
time-of-day factor normally suppresses the score.
"""
use Ecto.Schema
import Ecto.Changeset
@primary_key {:id, :binary_id, autogenerate: true}
@foreign_key_type :binary_id
schema "hrrr_climatology" do
field :lat, :float
field :lon, :float
field :month, :integer
field :hour, :integer
field :mean_surface_temp_c, :float
field :stddev_surface_temp_c, :float
field :sample_count, :integer
end
@spec changeset(%__MODULE__{}, map()) :: Ecto.Changeset.t()
def changeset(record, attrs) do
record
|> cast(attrs, [:lat, :lon, :month, :hour, :mean_surface_temp_c, :stddev_surface_temp_c, :sample_count])
|> validate_required([:lat, :lon, :month, :hour])
|> unique_constraint([:lat, :lon, :month, :hour])
end
end