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A new model for dust emission by saltation bombardment
Abstract
In this paper, we present an analysis on the mechanism of dust emission and describe a new model for the prediction of dust emission rate caused by saltation bombardment, based on the volume removal by impacting sand grains as they plough into the soil surface. The model predicts a relationship between the removed volume V and the particle impacting velocity U of the form V ∝ U n, with n = 2 ∼ 3. The dust emission rate is found to be proportional to u*n + 1, where u* is friction velocity. These model predictions are consistent with wind tunnel and field observations. The model offers a new interpretation of observed data and a simple scheme for the calculation of dust emission.
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Cited by
The physics of wind-blown sand and dust
Kok, J. F., Parteli, E. J. R., Michaels, T. I., & Karam, D. B. (2012) · Reports on Progress in Physics · doi:10.1088/0034-4885/75/10/106901 · Cited by 1,608
The role of dust in climate changes today, at the last glacial maximum and in the future
Harrison, S. P., Kohfeld, K. E., Roelandt, C., & Claquin, T. (2001) · Earth-Science Reviews · doi:10.1016/s0012-8252(01)00041-1 · Cited by 447
Knippertz, P., & Todd, M. C. (2012) · Reviews of Geophysics · doi:10.1029/2011rg000362 · Cited by 406
Simplification of a dust emission scheme and comparison with data
Shao, Y. (2004) · Journal of Geophysical Research: Atmospheres · doi:10.1029/2003jd004372 · Cited by 324
Self-citationPérez, C., Haustein, K., Janjic, Z., Jorba, O., Huneeus, N., Baldasano, J. M., Black, T., Basart, S., Nickovic, S., Miller, R. L., et al. (2011) · Atmospheric Chemistry and Physics · doi:10.5194/acp-11-13001-2011 · Cited by 254
Metadata
- Authors
- Lu, H., & Shao, Y.
- Venue
- Journal of Geophysical Research: Atmospheres
- Publisher
- American Geophysical Union (AGU)
- Published
- 1999-07
- Volume
- 104
- Issue
- D14
- Pages
- 16827-16842
- ISSN
- 0148-0227 (ISSN-L)
- OpenAlex
- W2003747578
- Cited by
- 197
- References
- 0
- FWCI
- 4.88
- Type
- journal article
- Language
- en
- Open access
- closed
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- Lu, H., & Shao, Y. (1999). A new model for dust emission by saltation bombardment. Journal of Geophysical Research: Atmospheres. https://doi.org/10.1029/1999jd900169
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
