Related topics: mars

New research offers global drylands solution to climate change

A new study published in the Journal for Geographical Research: Biogeosciences, led by a University of Derby academic, has shed new light on how microorganisms move through dryland landscapes attached to wind-blown dust and ...

Dust storms and giant hail batter bushfire-weary Australia

Thunderstorms and giant hail battered parts of Australia's east coast on Monday after "apocalyptic" dust storms swept across drought-stricken areas, as extreme weather patterns collided in the bushfire-fatigued country.

132 grams to communicate with Mars

Dust storms, ionising cosmic radiation, extreme cold at night ... Mars is not very hospitable! It's for these extreme conditions that the research team of Christophe Craeye, a professor at the UCLouvain Louvain School of ...

Megadrought caused mega biodiversity loss

Researchers at CSIRO, Australia's national science agency, have painstakingly reconstructed the nation's 'once in a century drought' in the early 1900s, revealing that it caused mass ecosystem collapse and dramatic declines ...

Dust storms swirl at the north pole of Mars

ESA's Mars Express has been keeping an eye on local and regional dust storms brewing at the north pole of the Red Planet over the last month, watching as they disperse towards the equator.

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Dust storm

A dust storm or sandstorm is a meteorological phenomenon common in arid and semi-arid regions and arises when a gust front passes or when the wind force exceeds the threshold value where loose sand and dust are removed from the dry surface. Particles are transported by saltation and suspension, causing soil erosion from one place and deposition in another. The Sahara and drylands around the Arabian peninsula are the main source of airborne dust, with some contributions from Iran, Pakistan and India into the Arabian Sea, and China's storms deposit dust in the Pacific. It has been argued that recently, poor management of the Earth's drylands, such as neglecting the fallow system, are increasing dust storms from desert margins and changing both the local and global climate, and also impacting local economies.

The term sandstorm is used most often in the context of desert sandstorms, especially in the Sahara, when, in addition to fine particles obscuring visibility, a considerable amount of larger sand particles are blown closer to the surface. The term dust storm is more likely to be used when finer particles are blown long distances, especially when the dust storm affects urban areas.

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