arlmet.sources.NAMSSource

class arlmet.sources.NAMSSource(domain='conus')

NAMS hybrid sigma-pressure analysis (CONUS/Alaska/Hawaii, 2010–present).

One file per calendar day. Uses hybrid sigma-pressure vertical coordinates (flag=4), making it suitable for high-accuracy boundary-layer transport.

Parameters:

• domain ({"conus", "ak", "hi"}) – Regional domain — CONUS (default), Alaska, or Hawaii.

• S3 (s3://noaa-oar-arl-hysplit-pds/nams/{year}/{month:02d}/{YYYYMMDD}_hysplit.t00z.namsa[.AK|.HI])

Methods

NAMSSource.__init__([domain])
NAMSSource.fetch(start, end, *, local_dir[, ...])	Download ARL files covering [start, end] to local_dir.
NAMSSource.keys_for_range(start, end)	Return deduplicated, sorted S3 keys covering [start, end].

Attributes

NAMSSource.FTP_HOST
NAMSSource.HTTP_BASE
NAMSSource.S3_BUCKET
NAMSSource.description
NAMSSource.name
NAMSSource.start_date	Earliest date available in the NOAA archive.