ACP Atmospheric Chemistry and Physics ACP 1680-7324 Copernicus GmbH Göttingen, Germany 10.5194/acp-12-5147-2012 Dust resuspension under weak wind conditions: direct observations and model Chkhetiani O. G. 1 2 Gledzer E. B. 1 Artamonova M. S. 1 Iordanskii M. A. 3 A.M.Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences, Moscow, Russia Space Research Institute, Russian Academy of Sciences, Moscow, Russia State institution "Karpov Physics and Chemistry Institute", Moscow, Russia 12 06 2012 12 11 5147 5162 This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. This article is available from http://www.atmos-chem-phys.net/12/5147/2012/acp-12-5147-2012.html The full text article is available as a PDF file from http://www.atmos-chem-phys.net/12/5147/2012/acp-12-5147-2012.pdf

The results of direct observations of fine mineral dust aerosol (0.15–15 μm) were carried out on extensive sand areas in desertificated lands of Kalmykia in 2007, 2009, and 2010 under conditions of weak wind and strong heating of the surface, almost in the absence of saltation processes. These results show that the fine mineral dust aerosol (0.15–0.5 μm) in the region under consideration contributes considerably to the total aerosol content of the atmospheric surface layer. Data on the mass concentrations of fine aerosol are treated on the basis of physical model estimates obtained for fluid dynamic parameters in the viscous thermal boundary layer near the ground surface. Deviations of these mass concentrations from their background values are related to a temperature drop in the thermal layer at the surface and from the values of friction velocity. For small and moderate values of friction velocity, these mass concentrations increase proportionally to a temperature drop with an exponent of about 0.5, and, for high friction velocities, this exponent becomes negative (~−0.5), which implies a decrease in these concentrations with an increase in a temperature drop.

 References Bagnold, R. A.: The Physics of Blown Sand and Desert Dunes, Methuen, New York, 265 pp., 1941. Barenblatt, G. I. and Golitsyn, G. S.: Local structure of mature dust storms, J. Atmos. Sci., 31, 1917–1933, 1974. Borrmann, S. and Jaenicke, R.: Wind tunnel experiments on the resuspension of sub-micrometer particles from a sand surface, Atmos. Environ., 21, 1891–1898, 1987. Cakmur, R. V., Miller, R. L., and Torres, O.: Incorporating the effect of small-scale circulations upon dust emission in an atmospheric general circulation model, J. Geophys. Res., 109, D07201, http://dx.doi.org/10.1029/2003JD004067doi:10.1029/2003JD004067, 2004. Darmenova, K., Sokolik, I. N., Shao, Y., Marticorena, B., and Bergametti, G.: Development of a physically based dust emission module within the Weather Research and Forecasting (WRF) model: Assessment of dust emission parameterizations and input parameters for source regions in Central and East Asia, J. Geophys. Res., 114, D14201, http://dx.doi.org/10.1029/2008JD011236doi:10.1029/2008JD011236, 2009. Foken, T. H.: The molecular temperature boundary layer of the atmosphere over various surfaces, Arch.Met Geoph.Biokl., Ser.A, 27, 59–67, 1978. Foken, T. H.: Micrometeorology, Springer-Verlag Berlin Heidelberg, 306 pp., 2008. Gillette, D. A. and Sinclair, P. C.: Estimation of suspension of alkaline material by dust devils in the United States, Atmos. Environ., 24A, 1135–1142, 1990. Gillette, D. A., Fryear, D. W., Gill, T. E., Ley, T., Cahill, T. A., and Gearhart, E. A.: Relation of vertical flux of particles smaller than 10 μm to total aeolian horizontal mass flux at Owens Lake, J. Geophys. Res., 102, 26009–26015, 1997. Gillette, D. A., Lawson Jr., R. E., and Thompson, R. S. A.: "test of concept" comparison of aerodynamic and mechanical resuspension mechanizms for particles deposited on field rye grass. Part 1. Relative particle flux rates, Atmos. Environ., 38, 4789–4797, 2004. Gledzer, E. B., Granberg, I. G., and Chkhetiani, O. G.: Air dynamics near the soil surface and convective emission of aerosol, Izvestiya, Atmos. Ocean. Phys., 46, 29–40, 2010. Golitsyn, G. S.: Simple theoretical and experimental study of convection with some geophysical applications and analogies, J. Fluid Mech., 95, 567–608, 1980. Golitsyn, G. S. and Smirnov, V. V. (Eds.): Joint Soviet-American experiment on arid aerosol, St. Petersburg, Hydrometeoizdat, 220 pp., 1993. Golitsyn, G. S., Granberg, I. G., Aloyan, A. E., Andronova, A. V., Gorchakov, G. I., Ponomarev, V. M., and Shishkov, P. O.: Study of emissions and transport of dust aerosol in Kalmykia Black Lands, J. Aerosol. Sci., 28, Suppl. 1, S725–S726, 1997. Golitsyn, G. S., Granberg, I. G., Andronova, A. V., Ponomarev, V. M., Zilitinkevich, S. S., Smirnov, V. V., and Yablokov, M. Y.: Investigation of boundary layer fine structure in arid regions, Water Air Soil Pollut., Focus, 3, 245–257, 2003. Gorchakov, G. I., Koprov, B. M., and Shukurov, K. A.: Arid aerosol transport by vortices, Izvestia, Atmos. Ocean. Phys., 39, 596–608, 2003. Greeley, R. and Iversen, J. D.: Wind as a geological process on Earth, Mars, Venus and Titan, Cambridge University Press, New York, 333 pp., 1985. IPCC IV: Climate Change 2007: The Physical Science Basis, Cambridge Univ. Press, New York, 940 pp., 2007. Junge, C.: Air chemistry and radioactivity, Academic Press, New York, 382 pp., 1963. Kandler, K., Schütz, L., Deutscher, C., Ebert, M., Hofmann, H., Jäckel, S., Jaenicke, R., Knippertz, P., Lieke, K., Massling, A., Petzold, A., Schladitz, A., Weinzierl, B., Wiedensohler, A., Zorn, S., and Weinbruch, S.: Size distribution, mass concentration, chemical and mineralogical composition and derived optical parameters of the boundary layer aerosol at Tinfou, Morocco, during SAMUM 2006, Tellus, 61B, 32–50, http://dx.doi.org/10.1111/j.1600-0889.2008.00385.xdoi:10.1111/j.1600-0889.2008.00385.x, 2009. Klose, M. and Shao, Y.: Stochastic parameterization of dust emission and application to convective atmospheric conditions, Atmos. Chem. Phys. Discuss., 12, 3263–3293, http://dx.doi.org/10.5194/acpd-12-3263-2012doi:10.5194/acpd-12-3263-2012, 2012. Kok, J. F. and Renno, N. O.: Enhancement of the emission of mineral dust aerosols by electric forces, Geophys. Res. Lett., 33, L19S10, http://dx.doi.org/10.1029/2006GL026284doi:10.1029/2006GL026284, 2006. Kok, J. F. and Renno, N. O.: A comprehensive numerical model of steady state saltation (COMSALT), J. Geophys. Res., 114, D17204, http://dx.doi.org/10.1029/2009JD011702doi:10.1029/2009JD011702, 2009. Kozlov, A. S., Ankilov, A. N., Baklanov, A. M., Vlasenko, A. L., Eremenko, S. I., and Malyshkin, S. B.: Investigation of mechanical processes of submicron aerosol formation, Atmos. Ocean. Opt. C, 13, 617–619, 2000. Larsen, S. E., Jorgensen, H. E., Landberg, L., and Tillman, J. E.: Aspects of the atmospheric surface layers on Mars and Earth, Bound.-Lay. Meteorol., 105, 451–470, 2002. Lumley, J. L. and Panofsky, H. A.: The Structure of Atmospheric Turbulence, Interscience Publishers, New York, 239 pp., 1964. Loosmore, G. A. and Hunt, J. R.: Dust resuspension without saltation, J. Geophys.Res, 105, 20663–20671, 2000. Marsham, J. H., Parker, D. J., Grams, C. M., Johnson, B. T., Grey, W. M. F., and Ross, A. N.: Observations of mesoscale and boundary-layer scale circulations affecting dust transport and uplift over the Sahara, Atmos. Chem. Phys., 8, 6979–6993, http://dx.doi.org/10.5194/acp-8-6979-2008doi:10.5194/acp-8-6979-2008, 2008. Monin, A. S. and Yaglom, A. M.: Statistical Fluid Mechanics. V.1, MIT Press, Cambridge, London, 769 pp., 1971. Mikami, M., Aoki, T., Ishizuka, M., Yabuki, S., Yamada, Y., Gao, W., and Zeng, F.: Observation of Number Concentration of Desert Aerosols in the South of the Taklimakan Desert, China, J. Met. Soc. Jap., 83A, 31–43, 2005. Obukhov, A. M.: Turbulence in an atmosphere with a non-uniform temperature, Bound.-Lay. Meteorol., 2, 7–29, 1971. Ponomarev, V. M.: Micro-scale modelling of pollution dispersion in atmospheric boundary layer, Syst. Anal. Model. Sim., 30, 39–44, 1998. Shao, Y.: Physics and modelling of wind erosion, Kluwer Academic, Boston, 452 pp., 2000. \bibitem[Takemi et al.(2006)] Takemi2006 Takemi, T., Yasui, M., Zhou, J., and Lichao Liu, L.: Role of boundary layer and cumulus convection on dust emission and transport over a midlatitude desert area, J. Geophys. Res., 111, D11203, http://dx.doi.org/10.1029/2005JD006666doi:10.1029/2005JD006666, 2006. Wang, X., Huang, J., Zhang, R., Chen, B., and Bi, J.: Surface measurements of aerosol properties over northwest China during ARM China 2008 deployment, J. Geophys. Res., 115, D00K27, http://dx.doi.org/10.1029/2009JD013467doi:10.1029/2009JD013467, 2010. Weinzierl, B., Petzold, A., Esselborn, M., Wirth, M., Rasp, K., Kandler, K., Schütz, L., Koepke, P., and Fiebig, M.: Airborne measurements of dust layer properties, particle size distribution and mixing state of Saharan dust during SAMUM 2006, Tellus B, 61, 96–117, http://dx.doi.org/10.1111/j.1600-0889.2008.00392.xdoi:10.1111/j.1600-0889.2008.00392.x, 2009. Yablokov, M. Y. and Andronova, A. V.: A model of takeoff processes of desert sand aerosols in windless conditions, J. Aerosol. Sci., 28, Suppl. 1, S563–S564, 1997. Zhulanov, Yu. V., Zagaynov, Lushnikov, A. A., Lyubovtseva, Yu. S., Nevskiy, I. A., and Stulov, L. D.: Highly dispersed submicron atmospheric aerosols of the arid zone, Izvestiya, Atmos. Ocean. Phys., 22, 29–40, 1986. Zhou, Y., Guo, X., and Zheng, X. J.: Experimental measurements of wind-sand flux and sand transport for naturally mixed sands, Phys. Rev. E, 66, 021305, http://dx.doi.org/10.1103/PhysRevE.66.021305doi:10.1103/PhysRevE.66.021305, 2002.