👽 Mute xarray.open_mfdataset deprecation warning

Was getting some deprecation warnings with xarray being upgraded from 0.12.1 to 0.12.3. Specifically, the open_mfdatset used in deepbedmap.get_image_with_bounds warns of an upcoming functional change in 0.13. Warning is silenced by setting a `combine="nested"` argument that replicates the old behaviour. See also pydata/xarray#3091.

Author: weiji14

deepbedmap.ipynb

@@ -80,7 +80,9 @@
     "    but the window_bound extents will be correct\n",
     "    \"\"\"\n",
     "\n",
-    "    with xr.open_mfdataset(paths=filepaths, concat_dim=None) as dataset:\n",
+    "    with xr.open_mfdataset(\n",
+    "        paths=filepaths, combine=\"nested\", concat_dim=None\n",
+    "    ) as dataset:\n",
     "        # Retrieve dataarray from NetCDF datasets\n",
     "        dataarray = dataset.z.isel(indexers=indexers)\n",
     "\n",

deepbedmap.py

@@ -69,7 +69,9 @@ def get_image_with_bounds(filepaths: list, indexers: dict = None) -> xr.DataArra
     but the window_bound extents will be correct
     """
 
-    with xr.open_mfdataset(paths=filepaths, concat_dim=None) as dataset:
+    with xr.open_mfdataset(
+        paths=filepaths, combine="nested", concat_dim=None
+    ) as dataset:
         # Retrieve dataarray from NetCDF datasets
         dataarray = dataset.z.isel(indexers=indexers)