From 7a4b8a91ce5b9bbd2ce806d2463e95634ad8b1a1 Mon Sep 17 00:00:00 2001 From: Jonas Gunz Date: Fri, 25 Aug 2023 12:23:02 +0200 Subject: skewt with CAPE/CIN and info --- skewt.py | 53 ++++++++++++++++++++++++++++++++++++++++++++++------- 1 file changed, 46 insertions(+), 7 deletions(-) (limited to 'skewt.py') diff --git a/skewt.py b/skewt.py index 43bcc91..0b8f4a7 100644 --- a/skewt.py +++ b/skewt.py @@ -1,6 +1,8 @@ import matplotlib.gridspec as gridspec import matplotlib.pyplot as plt +import numpy as np + import metpy.calc as mpcalc from metpy.cbook import get_test_data from metpy.plots import add_metpy_logo, Hodograph, SkewT @@ -12,6 +14,8 @@ class Skewt: self._T = T self._Td = Td + self._info_lines = [] + # Create a new figure. The dimensions here give a good aspect ratio self._fig = plt.figure(figsize=(9, 9)) @@ -46,20 +50,55 @@ class Skewt: plt.ylabel('$m/s$') self._skew.plot_barbs(self._p, u, v) - def addInfo(self, lines): - # TODO + def addInfo(self, line): + self._info_lines.append(line) + + def addAnalysis(self, analysis='ccl', shade=False): + f = {'ccl': self._cclAnalysis, 'lcl': self._lclAnalysis} + + lvl, parcel = f[analysis]() + + self._skew.plot(self._p, parcel, 'y') + self._skew.plot(lvl[0], lvl[1], 'o', markerfacecolor='red', linewidth=1) + + cape, cin = mpcalc.cape_cin(self._p, self._T, self._Td, parcel) + + self.addInfo(f'CAPE {int(cape.magnitude)} $J/kg$ CIN {int(cin.magnitude)} $J/kg$') + + if shade: + self._skew.shade_cape(self._p,self._T,parcel) + self._skew.shade_cin(self._p,self._T,parcel) + + def _cclAnalysis(self): + #p = np.arange(max(self._p).magnitude, min(self._p).magnitude, -50) * units.hPa + + ccl = mpcalc.ccl(self._p,self._T,self._Td) + ccl_ground=mpcalc.dry_lapse(self._p[:1], ccl[1], ccl[0]) + ccl_ground_parcel= mpcalc.parcel_profile(self._p, ccl_ground[0], self._Td[0]) + + return (ccl, ccl_ground_parcel) + + def _lclAnalysis(self): + ground_parcel= mpcalc.parcel_profile(self._p, self._T[0], self._Td[0]) + lcl = mpcalc.lcl(self._p[0],self._T[0],self._Td[0]) + + return (lcl, ground_parcel) + + def _buildInfoBox(self): ax = self._fig.add_subplot(self._gs[1,-1]) - ax.text(0, 0, lines, ha='left', va='center', size=12) + ax.text(0, 0, '\n'.join(self._info_lines), ha='left', va='center', + size=10, fontfamily='monospace') ax.axis("off") - def plot(self, filename=None): + self._buildInfoBox() + # Add the relevant special lines #self._skew.ax.set_ylim(max(self._p), min(self._p)) self._skew.ax.set_ylim(1000, 100) - self._skew.plot_dry_adiabats() - self._skew.plot_moist_adiabats() - self._skew.plot_mixing_lines() + self._skew.plot_dry_adiabats(linewidth=1) + self._skew.plot_moist_adiabats(linewidth=1) + self._skew.plot_mixing_lines(linewidth=1) # Good bounds for aspect ratio self._skew.ax.set_xlim(-30, 40) -- cgit v1.2.3