This vertical view shows the smaller Blue Nile merging with the White Nile. Khartoum, the capital city of Sudan, lies at the confluence (on both sides of the Nile). Water from the two rivers allow vast areas in between to be irrigated. The checker-board pattern along the top of the frame is just a small part of the El Gezira cotton-growing project, one of the largest in the world.
NASA
Bild von der NASA bzw. <a rel="nofollow" class="external free" href="http://gimp-savvy.com/cgi-bin/img.cgi?nasahJQ7GP16pJw4817">http://gimp-savvy.com/cgi-bin/img.cgi?nasahJQ7GP16pJw4817</a>