From f94fbf99dc0bf9fd8d5d8b2181636d6fd2d007e4 Mon Sep 17 00:00:00 2001
From: Jonas Gunz <himself@jonasgunz.de>
Date: Thu, 19 Oct 2023 00:32:28 +0200
Subject: first wip meteogram

---
 plotter/meteogram.py | 88 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100755 plotter/meteogram.py

(limited to 'plotter/meteogram.py')

diff --git a/plotter/meteogram.py b/plotter/meteogram.py
new file mode 100755
index 0000000..c1dabee
--- /dev/null
+++ b/plotter/meteogram.py
@@ -0,0 +1,88 @@
+#!/usr/bin/env python3
+import os
+import json
+
+import matplotlib.pyplot as plt
+
+import xarray as xr
+from metpy.interpolate import cross_section
+import metpy.calc as mpcalc
+from metpy.units import units
+
+import misc
+
+def run(data, plots, output='.'):
+    misc.create_output_dir(output)
+    index = []
+
+    for plot in plots:
+        index.append(_plot(data, output, **plot))
+
+    return index
+
+def _plot(data, output, name, lat, lon):
+    index = []
+
+    data = data.sel(latitude=lat, longitude = lon, method='nearest')
+
+    #data = data.assign_coords(step=(data.step / (10**9 * 3600)))
+    data = data.assign_coords(step=(data.step.values.astype(float) * units('ns')).to('hour'))
+
+    init = misc.np_time_convert(data.time.values)
+
+    init_str = init.strftime('%d %b %Y - %HUTC')
+    init_for_filename = init.strftime('%Y-%m-%d-%HUTC')
+
+    fig = plt.figure(figsize=(10, 10), layout="constrained")
+
+
+    # start figure and set axis
+    ax = fig.add_subplot(5,1,(1,2))
+
+    ax.set_ylabel('Pressure level [hPa]')
+
+    #clc = ax.plot(data.step.values.astype('float64'), data.isobaricInhPa, data.ccl.transpose())
+    #clc = ax.imshow(data.ccl.transpose(), extent=(data.step.values.astype(float).min(), data.step.values.astype(float).max(), data.isobaricInhPa.min(), data.isobaricInhPa.max()), aspect='auto', cmap='Blues_r', vmin=0, vmax=100)
+    #plt.colorbar(clc, label='clcov')
+    # Blues_r
+    clc = ax.contourf(data.step, data.isobaricInhPa, data.ccl.transpose(), cmap='clcov', vmin=0, vmax=100, levels=9)
+
+    # use Format parameter for n/8
+    plt.colorbar(clc, label='cloudcov', extendfrac=None, ticks=[100*n/8 for n in range(9)], format=lambda x,_: f'{int(x/12.5)}/8', pad=0.0, fraction=0.015)
+
+
+    cf = ax.contour(data.step, data.isobaricInhPa, data.t.metpy.convert_units('degC').transpose())
+    ax.clabel(cf, inline=True, fontsize=10)
+    #plt.colorbar(cf, pad=0, aspect=50)
+    #plt.colorbar(cf)
+
+    barbs = ax.barbs(data.step, data.isobaricInhPa, data.u.transpose(), data.v.transpose())
+    #ax.barbs(data.u, data.v, color='black', length=5, alpha=0.5)
+
+    ax.invert_yaxis()
+
+    ### Second plot
+
+    ax2 = fig.add_subplot(5,1,3,sharex=ax)
+    ax2.plot(data.step, data.t2m.metpy.convert_units('degC').transpose(), color='red', label='Temperature (2m)')
+    ax2.plot(data.step, mpcalc.dewpoint_from_relative_humidity(data.t2m, data.r2).transpose(), color='blue', label='Dewpoint (2m)')
+    ax2.set_ylabel('Temperature [degC]')
+    ax2.legend(loc='lower right')
+
+    outname = f'{name}_{init_for_filename}.png'
+    plt.savefig(os.path.join(output, outname))
+    plt.close('all')
+
+    index.append(
+        {
+            'file': outname,
+            'init': init_str,
+            'valid': init_str,
+            'valid_offset': '00'
+        }
+    )
+
+    with open(os.path.join(output, f'{name}.index.json'), 'w') as f:
+        f.write(json.dumps(index, indent=4))
+
+    return { 'name': name, 'indexfile': f'{name}.index.json' }
-- 
cgit v1.2.3