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| #!/usr/bin/env python3 | ||
| ################################################################################ | ||
| # UNIX Script Documentation Block | ||
| # . . | ||
| # Script name: soca_vrfy.py | ||
| # Script description: Module with plotting functions for marine analysis vrfy task | ||
| # | ||
| # Author: Andrew Eichmann Org: NCEP/EMC Date: 2023-07-13 | ||
| # | ||
| # Abstract: This script produces figures relevant to the marine DA cycle | ||
| # | ||
| # $Id$ | ||
| # | ||
| # Attributes: | ||
| # Language: Python3 | ||
| # | ||
| ################################################################################ | ||
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| import matplotlib.pyplot as plt | ||
| import xarray as xr | ||
| import cartopy | ||
| import cartopy.crs as ccrs | ||
| import numpy as np | ||
| import os | ||
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| projs = {'North': ccrs.NorthPolarStereo(), | ||
| 'South': ccrs.SouthPolarStereo(), | ||
| 'Global': ccrs.Mollweide(central_longitude=-150)} | ||
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| def plot_config(grid_file=[], data_file=[], | ||
| variable=[], levels=[], bounds=[], colormap=[], comout=[], lats=[]): | ||
| """ | ||
| Prepares the configuration for the plotting functions below | ||
| """ | ||
| config = {} | ||
| config['grid file'] = grid_file | ||
| config['fields file'] = data_file | ||
| config['variable'] = variable | ||
| config['levels'] = levels | ||
| config['bounds'] = bounds | ||
| config['colormap'] = colormap | ||
| config['lats'] = lats | ||
| config['comout'] = comout | ||
| config['max depth'] = 5000.0 | ||
| config['proj'] = 'Global' | ||
| return config | ||
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| def plot_horizontal_slice(config): | ||
| """ | ||
| pcolormesh of a horizontal slice of an ocean field | ||
| """ | ||
| grid = xr.open_dataset(config['grid file']) | ||
| data = xr.open_dataset(config['fields file']) | ||
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| dirname = os.path.join(config['comout'], config['variable']) | ||
| os.makedirs(dirname, exist_ok=True) | ||
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| if config['variable'] in ['Temp', 'Salt', 'u', 'v']: | ||
| level = config['levels'][0] | ||
| slice_data = np.squeeze(data[config['variable']])[level, :, :] | ||
| label_colorbar = config['variable']+' Level '+str(level) | ||
| figname = os.path.join(dirname, config['variable']+'_Level_'+str(level)) | ||
| else: | ||
| slice_data = np.squeeze(data[config['variable']]) | ||
| label_colorbar = config['variable'] | ||
| figname = os.path.join(dirname, config['variable']+'_'+config['proj']) | ||
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| bounds = config['bounds'] | ||
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| fig, ax = plt.subplots(figsize=(8, 5), subplot_kw={'projection': projs[config['proj']]}) | ||
| plt.pcolormesh(np.squeeze(grid.lon), | ||
| np.squeeze(grid.lat), | ||
| slice_data, | ||
| vmin=bounds[0], vmax=bounds[1], | ||
| transform=ccrs.PlateCarree(), | ||
| cmap=config['colormap']) | ||
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| plt.colorbar(label=label_colorbar, shrink=0.5, orientation='horizontal') | ||
| ax.coastlines() # TODO: make this work on hpc | ||
| ax.gridlines(draw_labels=True) | ||
| if config['proj'] == 'South': | ||
| ax.set_extent([-180, 180, -90, -50], ccrs.PlateCarree()) | ||
| if config['proj'] == 'North': | ||
| ax.set_extent([-180, 180, 50, 90], ccrs.PlateCarree()) | ||
| # ax.add_feature(cartopy.feature.LAND) # TODO: make this work on hpc | ||
| plt.savefig(figname, bbox_inches='tight', dpi=600) | ||
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| def plot_zonal_slice(config): | ||
| """ | ||
| pcolormesh of a zonal slice of an ocean field | ||
| """ | ||
| lat = float(config['lats'][0]) | ||
| grid = xr.open_dataset(config['grid file']) | ||
| data = xr.open_dataset(config['fields file']) | ||
| lat_index = np.argmin(np.array(np.abs(np.squeeze(grid.lat)[:, 0]-lat))) | ||
| slice_data = np.squeeze(np.array(data[config['variable']]))[:, lat_index, :] | ||
| depth = np.squeeze(np.array(grid['h']))[:, lat_index, :] | ||
| depth[np.where(np.abs(depth) > 10000.0)] = 0.0 | ||
| depth = np.cumsum(depth, axis=0) | ||
| bounds = config['bounds'] | ||
| x = np.tile(np.squeeze(grid.lon[:, lat_index]), (np.shape(depth)[0], 1)) | ||
| fig, ax = plt.subplots(figsize=(8, 5)) | ||
| plt.pcolormesh(x, -depth, slice_data, | ||
| vmin=bounds[0], vmax=bounds[1], | ||
| cmap=config['colormap']) | ||
| plt.colorbar(label=config['variable']+' Lat '+str(lat), shrink=0.5, orientation='horizontal') | ||
| ax.set_ylim(-config['max depth'], 0) | ||
| dirname = os.path.join(config['comout'], config['variable']) | ||
| os.makedirs(dirname, exist_ok=True) | ||
| figname = os.path.join(dirname, config['variable'] + | ||
| 'zonal_lat_'+str(int(lat)) + '_' + str(int(config['max depth'])) + 'm') | ||
| plt.savefig(figname, bbox_inches='tight', dpi=600) | ||
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