mostlyright.weather.catalog.ghcnh

GHCNh catalog adapter (CATALOG-04).

Wraps mostlyright.weather._ghcnh.parse_ghcnh_row() into a class that satisfies the WeatherAdapter Protocol and emits a canonical schema.observation.v1 DataFrame with overlay columns + correct SI units (see mostlyright.weather.catalog._obs_projection).

GHCNh is the lowest-priority observation source in the v0.14.1 merge policy (AWC=3 > IEM=2 > GHCNh=1). It carries QC-accepted hourly records that are loud about their own quality via the _is_qc_accepted helper.

Module Attributes

`GHCNH_LAG`	GHCNh publishes with a longer lag than ASOS/AWC (hour-summary archive).

Classes

`GHCNhAdapter`()	GHCNh observation adapter.

class mostlyright.weather.catalog.ghcnh.GHCNhAdapter

Bases: object

GHCNh observation adapter.

SUPPORTED_SOURCES : `ClassVar`[`list`[`str`]] = [‘ghcnh.archive’]

fetch_observations(source, station, from_date, to_date)

Phase 3 Mode-2 entry point. v0.1: NotImplementedError.

Return type: DataFrame
Parameters:
- source (str)
- station (str)
- from_date (str)
- to_date (str)

static from_rows(rows, , source=‘ghcnh.archive’, retrieved_at=None)

Project GHCNh parser rows to a canonical observation DataFrame with SI units (knots → m/s, miles → metres, feet → metres, inches → mm).

Return type: DataFrame
Parameters:
- rows (list [dict [str , object ] ])
- source (str)
- retrieved_at (datetime | None)