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author | Jonas Gunz <himself@jonasgunz.de> | 2023-08-25 12:50:50 +0200 |
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committer | Jonas Gunz <himself@jonasgunz.de> | 2023-08-25 12:50:50 +0200 |
commit | b398bb68c6c442f6f23d6caf2854fe00e6834c01 (patch) | |
tree | 79afc829594af9603151191956aca2cc2e68797f /xar.py | |
parent | ba4f078875c2953e80f134b4e5f2d69ae42b4f51 (diff) | |
download | meteo_toolbox-b398bb68c6c442f6f23d6caf2854fe00e6834c01.tar.gz |
move xar
Diffstat (limited to 'xar.py')
-rwxr-xr-x | xar.py | 71 |
1 files changed, 0 insertions, 71 deletions
@@ -1,71 +0,0 @@ -#!/usr/bin/env python3 - -import datetime - -import xarray as xr -from metpy.units import units -import metpy.calc as mpcalc -import numpy as np - -import skewt - -def np_time_convert(dt64): - unix_epoch = np.datetime64(0, 's') - one_second = np.timedelta64(1, 's') - seconds_since_epoch = (dt64 - unix_epoch) / one_second - - return datetime.datetime.utcfromtimestamp(seconds_since_epoch) - -config = { - 'source':'dwd_icon-d2/combined.grib2', - 'plots':[ - { - 'lat':47.9626, - 'lon':11.9964, - 'name':'Antersberg' - }, - ] -} - -def run(config): - data = xr.load_dataset(config['source'], engine='cfgrib') - - for plot in config['plots']: - _plot(data, **plot) - -def _plot(data, lat, lon, name): - for_temp = data.sel(latitude=lat, longitude = lon, method='nearest') - for_temp = for_temp[['r', 't', 'u', 'v']] - - for step in for_temp.coords['step']: - this_step = for_temp.sel(step=step) - - p = this_step.coords['isobaricInhPa'].values * units.hPa - T = this_step.t.values * units.K - relHum = this_step.r.values * units.percent - Td = mpcalc.dewpoint_from_relative_humidity(T, relHum) - u = this_step.u.values * (units.m / units.s) - v = this_step.v.values * (units.m / units.s) - - valid = np_time_convert(step.valid_time.values) - init = np_time_convert(step.time.values) - - valid_str = valid.strftime('%d %b %Y - %HUTC') - init_str = init.strftime('%d %b %Y - %HUTC') - hours_since_init_str = str(int(this_step.step.values / np.timedelta64(1,'h'))).zfill(2) - - skt = skewt.Skewt(p=p, T=T, Td=Td) - skt.addWindUV(u, v) - skt.addInfo(f'{name} INIT+' + hours_since_init_str) - skt.addInfo(f"VALID: {valid_str}") - skt.addInfo(f"INIT : {init_str}") - skt.addInfo(f"LAT {lat} LON {lon}") - skt.addAnalysis(shade=True, analysis='lcl') - skt.addInfo("FORECAST DWD ICON-D2") - - init_for_filename = init.strftime('%Y-%m-%d-%HUTC') - - skt.plot(filename=f'skewt_{name}_{init_for_filename}+{hours_since_init_str}.png') - -if __name__ == '__main__': - run(config) |