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It forms above the mountain range, usually at the beginning of a chinook wind as a result of orographic lifting over the range. It appears when seen from downwind to form an arch over the mountain range. A layer of clear air separates it from the mountain. [3] A view of the Front Range of the Rockies capped by a föhn wall.
In general, Egypt is a very dry country. The Western Desert receives only occasional rainfall, the winters being mild and the summers very hot. The Eastern Desert receives some precipitation in the south in the form of orographic rainfall from winds that have crossed the Red Sea; this may cause torrential flows in the wadis. The winters here ...
An orographic map of Eastern Siberia from 1875 by Peter Kropotkin. Orography is the study of the topographic relief of mountains, [1] and can more broadly include hills, and any part of a region's elevated terrain. [2] Orography (also known as oreography, orology, or oreology) falls within the broader discipline of geomorphology. [3]
Wind and moist air are drawn by the prevailing winds towards the top of the mountains, condensing and precipitating before it crosses the top. In an effect opposite that of orographic lift, the air, without much moisture left, advances behind the mountains, creating a drier side called the "rain shadow". [citation needed]
This phenomenon is due to the proximity of the Red Sea coast (some 15–30 km (9.3–18.6 miles) east of the mountains) and also to the fact that the coast, slightly curved to the east at this point, presents an unusually broad front to the sea across a 20–25 km (12–16 miles) strip of relatively flat land, [2] which facilitates interception ...
The Eastern Desert (known archaically as Arabia or the Arabian Desert [1] [2]) is the part of the Sahara Desert that is located east of the Nile River. It spans 223,000 square kilometres (86,000 sq mi) of northeastern Africa and is bordered by the Gulf of Suez and the Red Sea to the east, and the Nile River to the west.
Egypt’s Red Sea resorts, including Hurghada and Sharm El-Sheikh, boast some of the country’s most renowned beach destinations and are popular with European tourists.
Effect of a rain shadow The Tibetan Plateau (center), perhaps the best example of a rain shadow. Rainfalls from the southern South Asian monsoon do not make it far past the Himalayas (seen by the snow line at the bottom), leading to an arid climate on the leeward (north) side of the mountain range and the desertification of the Tarim Basin (top).