منابع مشابه
Dust Storms: Schwartz's Response
Coarse Particles and Dust Storm Mortality In a paper titled "Episodes of High Coarse Partide Concentrations Are Not Associated with Increased Mortality," Schwartz et al. (1) concluded that "coarse particles from windblown dust are not associated with mortality risk." The authors seem to have overlooked the medical literature on the health effects of the historic U.S. dust storms of the dust bow...
متن کاملDust Bowl 3 Drought and dust storms
A farmer and his two sons during a dust storm in Cimarron County, Oklahoma, 1936, Photo: Arthur Rothstein The Dust Bowl, or the Dirty Thirties, was a period of severe dust storms causing major ecological and agricultural damage to American and Canadian prairie lands in the 1930s, particularly in 1934 and 1936. The phenomenon was caused by severe drought coupled with decades of extensive farming...
متن کاملDust storms and ephemeral lakes
In drylands, both dust storms and ephemeral salt lakes (playas) are common. Observations using remote sensing and ground studies have shown that these playas can be major sources of saline dust storms. Some basins have recently become desiccated as a result of water abstraction by humans, and these have become significant sources of dust. The timing and amounts of dust emissions depends on such...
متن کاملDirect climate effect of black carbon in China and its impact on dust storms
[1] Dust storms originating in the Gobi desert and the surrounding areas critically impact weather, climate, and public health in China and neighboring Pacific Rim countries. In the decades between 1954 and 2007, reports of annual dust storm occurrences and the corresponding amount of total precipitation at 753 Chinese meteorological sites show a reduction in the occurrence and intensity of dus...
متن کاملMaking a Clean Sweep: Behavior Based Vacuuming
This position paper discusses how the techniques and building blocks in use at the Georgia Tech Mobile Robot Lab could be used to construct an autonomous vacuum cleaner. Previous research at Georgia Tech using the Autonomous Robot Architecture (AURA)[2, has demonstrated robust operation in dynamic and partially modeled environments[3, 12]. Although much of this work has been deployed and tested...
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ژورنال
عنوان ژورنال: Nature
سال: 2003
ISSN: 0028-0836,1476-4687
DOI: 10.1038/421101a