#!/usr/bin/env python
# Wenchang Yang (wenchang@princeton.edu)
# Thu Jan 22 11:39:45 AM EST 2026
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
from misc.seasons import sel_season
#
if __name__ == '__main__':
    try:
        tt.check('end import')
    except:
        pass
#
#start from here
season = 'OND'
#ifile = 'precip_AM2.5C360_nmmeHindcastJan01L12mon_tiger3_intel24ifort_openmpi_2430PE_10ens_1997-1998_ONDmean.nc'
ifile = '/tigress/wenchang/analysis/AM2.5C360/seasonmean/precip_AM2.5C360_nmmeHindcastJan01L12mon_tiger3_intel24ifort_openmpi_2430PE_10ens_1997-1998_ONDmean.nc'
da = xr.open_dataarray(ifile)
daa = da.sel(time='1998').mean('time').mean('ens') - da.sel(time='1997').mean('time').mean('ens')
#obs
ifile = '/projects/w/wenchang/data/gpcp/v2p3/precip.mon.mean.197901_202412.nc'
ds = xr.open_dataset(ifile)
da_o = ds.precip
da_o = da_o.pipe(sel_season, season).resample(time='AS').mean()
daa_o = da_o.sel(time='1998').mean('time') - da_o.sel(time='1997').mean('time')

if __name__ == '__main__':
    from wyconfig import * #my plot settings
    from geoplots import mapplot
    fig,axes = plt.subplots(2, 1, figsize=(6,6), sharex=True)
    ax = axes[0]
    daa_o.plot.contourf(ax=ax, vmax=5, levels=21, cmap='BrBG')
    ax.set_title('OND precip diff: 1998 minus 1997, GPCP')

    ax = axes[1]
    daa.plot.contourf(ax=ax, vmax=5, levels=21, cmap='BrBG')
    ax.set_title('OND precip diff: 1998 minus 1997, AM2.5C360 NMME')

    for ax in axes:
        plt.sca(ax)
        mapplot()
    
    #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()