add skeleton for a the new lat_lon_native set

Author: chengzhuzhang

auxiliary_tools/plot_native_grid_data.py

@@ -0,0 +1,35 @@
+import uxarray as ux
+import matplotlib.pyplot as pl
+import cartopy.crs as ccrs
+import cartopy.feature as cfeature
+
+base_path = "/Users/zhang40/Documents/ACME_simulations/E3SM_v2/native_grid_data/"
+grid_info = "ne30pg2"
+grid_path = base_path + f"{grid_info}.nc"
+data_path = base_path + f"PRECC.{grid_info}.nc"
+
+uxds = ux.open_dataset(grid_path, data_path)
+
+pc = uxds["PRECT"].to_polycollection()
+#pc = uxds["PRECT"].to_polycollection(periodic_elements="split")
+
+# disables grid lines
+pc.set_antialiased(False)
+
+pc.set_cmap("plasma")
+
+fig, ax = plt.subplots(
+    1,
+    1,
+    figsize=(10, 5),
+    facecolor="w",
+    constrained_layout=True,
+    subplot_kw=dict(projection=ccrs.PlateCarree()),
+)
+
+ax.add_feature(cfeature.COASTLINE)
+ax.add_feature(cfeature.BORDERS)
+
+ax.add_collection(pc)
+ax.set_global()
+plt.title("PolyCollection Plot with Projection & Features")

e3sm_diags/driver/default_diags/lat_lon_native_model_vs_model.cfg

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+[#]
+sets = ["lat_lon_native"]
+case_id = "model_vs_model"
+variables = ["PRECT"]
+seasons = ["ANN", "DJF", "MAM", "JJA", "SON"]
+regions = ["global"]
+test_colormap = "WhiteBlueGreenYellowRed.rgb"
+reference_colormap = "WhiteBlueGreenYellowRed.rgb"
+diff_colormap = "BrBG"
+contour_levels = [0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16]
+diff_levels = [-2.5, -2, -1.5, -1, -0.5, -0.25, 0.25, 0.5, 1, 1.5, 2, 2.5]
+
+# Run type for model vs model
+run_type = "model_vs_model"
+
+# Native grid settings
+grid_file = ""
+split_periodic_elements = True
+antialiased = False

e3sm_diags/driver/default_diags/lat_lon_native_model_vs_obs.cfg

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+[#]
+sets = ["lat_lon_native"]
+case_id = "model_vs_obs"
+variables = ["PRECT"]
+seasons = ["ANN", "DJF", "MAM", "JJA", "SON"]
+regions = ["global"]
+test_colormap = "WhiteBlueGreenYellowRed.rgb"
+reference_colormap = "WhiteBlueGreenYellowRed.rgb"
+diff_colormap = "BrBG"
+contour_levels = [0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16]
+diff_levels = [-2.5, -2, -1.5, -1, -0.5, -0.25, 0.25, 0.5, 1, 1.5, 2, 2.5]
+
+# Native grid settings
+grid_file = ""
+split_periodic_elements = True
+antialiased = False