Merge pull request #558 from clarkfitzg/cartopy_example

cartopy example using real data

Author: clarkfitzg

doc/examples/atlantic_noise.png

@@ -0,0 +1,16 @@
+import xray
+import matplotlib.pyplot as plt
+import cartopy.crs as ccrs
+
+
+air = (xray.tutorial
+       .load_dataset('air_temperature')
+       .air
+       .isel(time=0))
+
+ax = plt.axes(projection=ccrs.Orthographic(-80, 35))
+ax.set_global()
+air.plot.contourf(ax=ax, transform=ccrs.PlateCarree())
+ax.coastlines()
+
+plt.savefig('cartopy_example.png')

doc/examples/cartopy_atlantic.py

@@ -309,17 +309,15 @@ since levels are chosen automatically).
 Maps
 ----
 
-TODO - Update this example to use the tutorial data.
-
 To follow this section you'll need to have Cartopy installed and working.
 
-This script will plot an image over the Atlantic ocean.
+This script will plot the air temperature on a map.
 
-.. literalinclude:: examples/cartopy_atlantic.py
+.. literalinclude:: examples/cartopy_example.py
 
 Here is the resulting image:
 
-.. image:: examples/atlantic_noise.png
+.. image:: examples/cartopy_example.png
 
 Details
 -------