#!/usr/bin/env python
# Wenchang Yang (wenchang@princeton.edu)
# Fri Dec  5 03:47:58 PM EST 2025
if __name__ == '__main__':
    import sys,os
    try:
        from misc.timer import Timer
        tt = Timer(f'[{os.getcwd()}] start ' + ' '.join(sys.argv))
    except:
        pass
import sys, os.path, os, glob, datetime
import xarray as xr, numpy as np, pandas as pd, matplotlib.pyplot as plt
#more imports
wython = '/tigress/wenchang/wython'
if wython not in sys.path: sys.path.append(wython); print('added to python path:', wython)
#from misc import get_kws_from_argv
#
if __name__ == '__main__':
    try:
        tt.check('end import')
    except:
        pass
#
#start from here
ifile = '/projects/GEOCLIM/wenchang/MODEL_OUT/AM2.5/tiger3/CTL1990_tiger3_intelmpi_24_1080PE/POSTP/03000101.atmos_daily.nc'
ds = xr.open_dataset(ifile)
da_h500 = ds.h500.isel(time=0).load()
ifile = '/projects/GEOCLIM/wenchang/MODEL_OUT/AM2.5/tiger3/CTL1990_tiger3_intelmpi_24_1080PE/POSTP/03000101.atmos_month.nc'
da_zsurf = xr.open_dataset(ifile).zsurf.load()
#estimate
R = 287
g = 9.8
T = ( ds.t_ref.isel(time=0).load() + ds.t500.isel(time=0).load())/2
ps = ds.ps.isel(time=0).load()
da_h500e = (R*T/g)*np.log(ps/50000) + da_zsurf  # h = (RT)/g * log(ps/p) + h0
da_h500e = da_h500e.assign_attrs(long_name='estimated 500-mb hght', units='m')
 
 
if __name__ == '__main__':
    from wyconfig import * #my plot settings
    from geoplots import mapplot
    fig,axes = plt.subplots(2, 1, figsize=(6,6))
    levels = range(0, 6100, 300)
    ax = axes[0]
    da_h500.plot(ax=ax, levels=levels)
    ax.set_title('h500 from modelout', loc='right')

    ax = axes[1]
    da_h500e.plot(ax=ax, levels=levels)
    ax.set_title('h500 estimated', loc='right')

    for ax in axes:
        plt.sca(ax)
        mapplot()
        ax.set_xlabel('')
        ax.set_ylabel('')
    
    #savefig
    if 'savefig' in sys.argv or 's' in sys.argv:
        figname = __file__.replace('.py', f'.png')
        if 'overwritefig' in sys.argv or 'o' in sys.argv:
            wysavefig(figname, overwritefig=True)
        else:
            wysavefig(figname)
 
    try:
        tt.check(f'**Done**')
    except:
        pass
    print()
    if 'notshowfig' in sys.argv or 'n' in sys.argv:
        pass
    else:
        if 'plt' in globals(): plt.show()