A collection of diagnostic and interpolation routines for use with output from the Weather Research and Forecasting (WRF-ARW) Model.
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from __future__ import (absolute_import, division, print_function,
unicode_literals)
from .constants import Constants
from .destag import destagger
from .extension import _omega, _tk
from .util import extract_vars
from .metadecorators import copy_and_set_metadata
@copy_and_set_metadata(copy_varname="T", name="omega",
description="omega",
units="Pa s-1")
def get_omega(wrfnc, timeidx=0, method="cat", squeeze=True, cache=None,
meta=True, _key=None):
varnames=("T", "P", "W", "PB", "QVAPOR")
ncvars = extract_vars(wrfnc, timeidx, varnames, method, squeeze, cache,
meta=False, _key=_key)
t = ncvars["T"]
p = ncvars["P"]
w = ncvars["W"]
pb = ncvars["PB"]
qv = ncvars["QVAPOR"]
wa = destagger(w, -3)
full_t = t + Constants.T_BASE
full_p = p + pb
tk = _tk(full_p, full_t)
omega = _omega(qv, tk, wa, full_p)
return omega