Does sand have a limited elevation?
During sand storms in a desert, is there a limited height to which the wind can carry the sand?
- 8 years agoFavorite Answer
It can be lifted as high as 20,000 ft (6,100 m) for dust but not sand. Sand is only found at low levels since wind pushes it at a whoppering 75 miles per hour
- RandalLv 78 years ago
strong wind that occurs along the southern edges of the Sahara in The Sudan and is associated with large sandstorms and duststorms and may be accompanied by thunderstorms. It usually lasts about three hours, is most common during the summer, and may blow from any direction. A haboob may transport huge quantities of sand or dust, which move as a dense wall that can reach a height of 900 metres (about 3,000 feet). The term haboob is taken from the Arabic word habb meaning wind.
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Irregularities in the surface or the presence of sand grains may create sufficient turbulence, so that sand grains gain sufficient wind energy to initiate saltation. Saltation-free dust emissions are possible, but rare, found in fine material where sand grains or sand-sized aggregates are not found. Vertical downdrafts of chilled air during thunderstorms may locally strike the ground with velocities of 40 to 80 km/hour (25 to 50 miles/hour). Under such conditions, fine particles may also be swept upwards hundreds or thousands of feet into the air. The average height of a dust storm is 3,000-6,000 feet and stronger storms have dust to 8,000-10,000 feet. Haze and dust with extreme storms have been documented as high as 35,000-40,000 feet.
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Basically, the maximum height is a function of the speed of the wind and the weight of the individual particles of sand.
I hope this is helpful.Source(s): http://dictionary.reference.com/browse/haboob http://www.magazine.noaa.gov/stories/mag86.htm
- 6 years ago
sophisticated issue. query on to yahoo. it can help!