The Sudans Nile within the Sudans has no significant tributaries. The amount of rainfall increases towards the south. In the north there is the very dry Nubian Desert; in the south there are swamps and rainforest. The Sudans’s rainy season lasts for about three months (July to September) in the north, and up to six months (June to November) in the south. The dry regions are plagued by sandstorms, known as haboob, which can completely block out the sun. In the northern and western semi-desert areas, people rely on the scant rainfall for basic agriculture and many are nomadic, travelling with their
Great Sandy-Tanami desert Great Sandy-Tanami desert The Great Sandy-Tanami desert is a World Wildlife Fund ecoregion of Western Australia extending into the Northern Territory. This very large ecoregion consists of the Little Sandy Desert, Great Sandy Desert, and Tanami Desert Interim Biogeographic Regionalisation for Australia (IBRA) regions. The landscape is desert sands with areas of wooded steppe and shrubby grassland. The Great Sandy Desert is a large area of red desert sand dunes, while the Tanami Desert to the east is flat sand broken up with areas of hills. One prominent landmark in the region is the large sandstone rock Uluru. The climate