Tabuk province in Saudi Arabia is famous among Remote Sensing specialists because it has an amazing view of irrigated fields surrounded by the deserted territory. Primarily it happens because of just 1935 mm annual precipitation.
This is the image of Saudi Arabia is taken by Landmapper-BC satellite on 30th of April:
Multispectral imagery highlights these differences between irrigated and non-irrigated territories even more. This is zoomed in image processed in Natural color and NDVI: