fig = plt.figure(figsize=(8,6))
ax = fig.add_subplot(projection=ccrs.Robinson())
ax.set_global()
ax.coastlines()
ax.gridlines()
ax.set_title('Fig. 1')
fig = plt.figure(figsize=(8,6))
ax = fig.add_subplot(projection=ccrs.Robinson(central_longitude=180))
ax.set_global()
ax.coastlines()
ax.gridlines(draw_labels='y', **glstyle)
ax.gridlines(draw_labels=['bottom'], **glstyle)
im = ax.imshow(v, cmap=plt.cm.jet,
extent=[-180,180,-90,90], transform=ccrs.PlateCarree())
fig.colorbar(im, shrink=0.5)
ax.set_title('Fig. 2')