Vol. 34, issue 06, article # 6

Abstract:

Empirical model of the saltating aleurite and sand particle size distribution has been developed based on the measurements of the number differential concentration in the size range from 30 to 330 mm using size distribution approximation by sum of two lognormal distributions. Approximations of the vertical profiles of distribution parameters have been derived for the layer from 0 to 15 cm. Vertical profiles of the modal size of the large particle in the saltation layer from 3 to 15 cm and in the surface air layer from 0.125 to 16 m are compared with measurements in the Aral region.

Keywords:

desertification, windsand flux, saltation, aleurite particle mode, particle size distribution function, function distribution approximation, vertical profiles of function distribution parameters

References:

1. Tegen I., Lacis A., Fung I. The influence on climate forcing of numeral aerosols from disturbed soils // Nature. 1996. V. 380. P. 419–422.
2. Woodward S. Modeling the atmospheric life cycle and radiative impact of mineral dust in the Halley Centre climate model // J. Geophys. Res. 2001. V. D106. P. 18155–18106.
3. Zi F., Vogelman A., Ramanthan V. Saharan dust aerosol radiative forcing measurement from space // J. Clim. 2004. V. 17. P. 2558–2571.
4. Kok J.F., Parteli E.I.R., Michaels T.I., Bou Karam D. The physics of the wind-blown sand and dust // Rep. Prog. Phys. 2012. V. 75. P. 1–119.
5. Mahovald N., Albani S., Kok J.F., Engelstaeder S., Scanza R., Ward D.S., Flanner M.G. The size distribution of desert dust aerosols and its impact on the Earth system // Aeolian Res. 2014. V. 15. P. 53–71.
6. Gillette D.A. On the production of soil wind erosion having the potential for long range transport // J. Rech. Atmos. 1974. V. 8. P. 734–744.
7. Shao Y., Raupach M.R., Findlater D.A. Effect of saltation bombardment on the entertainment of dust by wind // J. Geophys. Res. 1993. V. D98. P. 12719–12726.
8. Alfaro S.C., Gaudichet A., Gomes L., Maille M. Modeling the size distribution of a soil aerosol produced by sandblasting // J. Geophys. Res. 1997. V. D102. P. 11239–11249.
9. Bagnold R.A. The Physics of Blown Sand and Desert Dunes. London: Methuen, 1941. 265 р.
10. Shao Y. Physics and Modeling of Wind Erosion. New York: Springer, 2000. 393 р.
11. Zheng X. Mechanics of Wind Blown Sand Movements. Berlin: Springer-Verlag, 2009. 290 p.
12. Semenov O.E. Vvedenie v eksperimental'nuyu meteorologiyu i klimatologiyu peschanyh bur'. Almaty: KazNIIEK, 2011. 580 p.
13. Buntov D.V., Gushchin R.A., Datsenko O.I. Chetyrekhkanal'nyj fotoelektricheskij schetchik sal'tiruyushchih peschinok // Optika atmosf. i okeana. 2018. V. 31, N 6. P. 485–488; Buntov D.V., Gushchin R.A., Datsenko O.I. Four-channel photoelectric counter of saltating sand particles // Atmos. Ocean. Opt. 2018. V. 31, N 5. P. 548–551.
14. Gorchakov G.I., Buntov D.V., Karpov A.V., Kopejkin V.M., Mirsaitov S.F., Gushchin R.A., Datsenko O.I. Alevritovaya fraktsiya sal'tiruyushchih chastits v vetropeschanom potoke na opustynennoj territorii // Dokl. RAN. Nauki o Zemle. 2019. V. 488, N 2. P. 193–196.
15. Pettijohn F.G. Sedimentary Rocks. New York: Harper, 1957. 526 р.
16. Gorchakov G.I., Buntov D.V., Karpov A.V., Kopejkin V.M., Mirsaitov S.F., Gushchin R.A., Datsenko O.I. Vliyanie vetra na raspredelenie sal'tiruyushchih chastits po razmeram // Optika atmosf. i okeana. 2019. V. 32, N 10. P. 848–855; Gorchakov G.I., Buntov D.V., Karpov A.V., Kopeikin V.M., Mirsaitov S.F., Gushchin R.A., Datsenko O.I. Wind effect on the size distribution of saltating particles // Atmos. Ocean. Opt. 2020. V. 33, N 2. P. 198–205.
17. Gorchakov G.I., Karpov A.V., Gushchin R.A., Datsenko O.I., Buntov D.V. Vertikal'nye profili kontsentratsij sal'tiruyushchih chastits na opustynennoj territorii // Dokl. RAN. Nauki o Zemle. 2021. V. 496, N 2. P. 211–214.
18. Namicas S.Z. Field measurement and numerical modeling of aeolian massflux distribution on a sandy beach / Sedimentology. 2003. V. 50. P. 303–326.
19. Mikami M., Yamada Y., Ishizuka M., Ishimaru T., Gao W., Zeng F.Y. Measurement of saltation process over Gobi and sand dunes in the Taklimakan desert, China, with newly developed sand particle counter // J. Geophys. Res. 2005. V. 110, N D18. P. S02.
20. Gorchakov G.I., Buntov D.V., Karpov A.V., Kopeikin V.M., Mirsaitov S.F., Gushchin R.A., Datsenko O.I. Vertical profile of saltating particle concentration over semidesert area // IOP Conf. Ser. 2020. DOI: 10.1088/1755-1315/606/1/012015.
21. Liu X, Dong Z. Experimental investigation of the concentration profile of a bowing sand cloud // Geomorphology. 2004. V. 60. P. 371–381.
22. Creyssels M., Dupont P., El Moctar A., Valance A., Cantat I., Jenkins J.T., Pasini J.M., Rasmussen K.R. Saltating particles in a turbulent boundary layer: experiment and theory // J. Fluid Mech. 2009. V. 625. P. 47–74.
23. Gorchakov G.I., Karpov A.V., Kopejkin V.M., Zlobin I.A., Buntov D.V., Sokolov A.V. Issledovanie dinamiki sal'tiruyushchih peschinok na opustynennyh territoriyah // Doklady AN. 2013. V. 452, N 6. P. 669–676.
24. Barenblatt G.I., Golitsyn G.S. Lokal'naya struktura razvityh pyl'nyh bur'. M.: MGU, 1973. 44 p.
25. Obuhov A.M. Turbulentnost' i dinamika atmosfery. L.: Gidrometeoizdat, 1988. 414 p.
26. Prandtl' L. Gidroaeromekhanika. M.: Inostrannaya literatura, 1995. 576 p.