Graham McIntire
361b9dec5a
First step toward physics-based HF / sporadic-E scoring. Polls GIRO's DIDBase tabular endpoint every 10 minutes for two US ionosondes (Millstone Hill MHJ45, Alpena AL945), parses the plain-text response into observation rows, and upserts into a new ionosonde_observations table keyed on (station_code, valid_time). This gets foEs (E-layer sporadic critical frequency) into the database as a direct measurement — the key input for predicting 144 MHz Es openings via ITU-R P.534-6. foF2 + MUFD are the F2-layer inputs for HF MUF predictions. Not yet wired into scoring. Boulder/Wallops/Austin/Idaho/Point Arguello are in the GIRO catalog but were silent when probed — add them back if/when they come online. Next steps: SWPC JSON (Kp, F10.7, sunspot), GOES X-ray flux, D-RAP text, and the P.534-6 Es scoring factor that uses foEs at midpoint for the 144/440 band configs.
22 lines
689 B
Elixir
22 lines
689 B
Elixir
defmodule Microwaveprop.Repo.Migrations.CreateIonosondeObservations do
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use Ecto.Migration
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def change do
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create table(:ionosonde_observations, primary_key: false) do
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add :id, :binary_id, primary_key: true
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add :station_code, :string, null: false
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add :valid_time, :utc_datetime, null: false
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add :confidence_score, :integer
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add :fo_f2_mhz, :float
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add :fo_e_mhz, :float
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add :fo_es_mhz, :float
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add :hm_f2_km, :float
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add :mufd_mhz, :float
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timestamps(type: :utc_datetime)
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end
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create unique_index(:ionosonde_observations, [:station_code, :valid_time])
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create index(:ionosonde_observations, [:valid_time])
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end
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end
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