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Size distributions of saltating grains: an important variable in the production of suspended particles

โœ Scribed by Gillette, Dale A.; Chen, Weinan

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
368 KB
Volume
24
Category
Article
ISSN
0360-1269

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โœฆ Synopsis

Size distributions were obtained for airborne particles in the saltation layer for cases where the ratio of the vertical flux of suspended particles to the horizontal flux of particles of all sizes is known. The data can be used to test theories of emissions of suspended particles. All of our sampled erodible soils with textures of sand, loamy sand and loam had saltation-grain mean particle sizes in the range 117ยฑ160 "m. Our clay soil had saltation mean particle sizes ranging from 560 to 584 "m. In the light of these data, we interpret the results found previously as supporting sandblasting rather than direct aerodynamic entrainment. The data are consistent with sandblasting theories of Shao et al. and of Alfaro.

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