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tephpy plots and analyses tephigrams — the chart a
forecaster reads a radiosonde ascent from. It draws the diagram, puts
your data on it, and reads the standard quantities off it.
It draws, and delegates the physics. The five isopleth families, the rotated
coordinate system and the edge labelling are tephpy’s; parcel ascent,
CAPE, CIN and the rest come from
MetPy, so there is one source of
thermodynamic truth and it is not this package.
It also declines things, deliberately. There is no skew-T — MetPy owns that space — no hodograph, and no TEMP or BUFR decoding. Each has somewhere to go instead, and the non-goals say where.
Where it comes from: tephpy reimplements
tephi on a Matplotlib projection,
with
the thermodynamics delegated rather than reimplemented.