Abstract
A time and height dependent eddy diffusion model is used to investigate possible scenarios for the size distribution of dust in the lower atmosphere of Mars. The dust is assumed to either have been advected from a distant source or to have originated locally. In the former case, the atmosphere is assumed to initially contain dust particles with sizes following a modified gamma distribution. Larger particles are deposited relatively rapidly while small particles are well mixed up to the maximum height of the afternoon boundary layer and are deposited more slowly. In other cases, a parameterization of the dust source at the surface is proposed. Model results show that smaller particles are rapidly mixed within the Martian boundary layer, while larger particles (r > 10 μm) are concentrated near the ground with a stronger diurnal cycle. In all simulations we assume that the initial concentration or surface source depend on a modified gamma function distribution. For small particles (cross-sectional area weighted mean radius, reff = 1.6 μm) distributions retain essentially the same form, though with variations in the mean and variance of the area-weighted radius, and the gamma function can be used to represent the particle size distribution reasonably well at most heights within the boundary layer. In the case of a surface source of larger particles (mean radius 50 μm) the modified gamma function does not fit the resulting particle size distribution. All results are normalised by a scaling factor that can be adjusted to correspond to an optical depth for assumed particle optical scattering properties.
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References
Bagnold RA (1941) (revised 1954) The physics of blown sand and desert dunes. Methuen, London, 265 pp
Blackadar AK (1962) The vertical distribution of wind and turbulent exchange in a neutral atmosphere. J Geophys Res. 67:3095–3102
Chapman S, Cowling TG (1964) The mathematical theory of non-uniform gases: an account of the kinetic theory of viscosity, thermal conduction, and diffusion in gases. Cambridge University Press, U.K. 431 pp
Chassefière E, Drossart P, Korablev O (1995) Post-Phobos model for the altitude and size distribution of dust in the low Martian atmosphere. J Geophys Res 100:5525–5539
Garratt JR (1994) The atmospheric boundary layer. Cambridge University Press, Cambridge, 316 pp
Greeley R, Iversen JD (1985) Wind as a geological process. No. 4 in Cambridge Planetary Science Series. Cambridge Univ. Press, New York, NY, 33 pp
Greeley R, Lacchia M, White B, Leach R, Trilling D, Pollack J (1994) Dust on Mars: new values for wind threshold. In XXV Lunar Planetary science Conference, pp 467–468
Hong CS, Lee KH, Kim YJ, Iwasaka Y (2004) LIDAR measurements of the vertical aerosol profile and optical depth during the ACE-Asia 2001 IOP at Gosan, Jeju Island, Korea. Environ Monitor Assess 92:43–57
Korablev O, Moroz VI, Petrova EV, Rodin AV (2005) Optical properties of dust and the opacity of the Martian atmosphere. Adv Space Res 35:21–30
Larsen SE, Jørgensen HE, Landberg L, Tillman JE (2002) Aspects of the atmospheric surface layers on mars and earth. Boundary-Layer Meteorol 105:451–470
McKenna Neuman C (2003) Effects of temperature and humidity upon the entrainment of sedimentary particles by the wind. Boundary-Layer Meteorol 108:61–89
Michelangeli DV, Toon OB, Haberle RM, Pollack JB (1993) Numerical simulations of the formation and evolution of water ice clouds in the Martian atmosphere. Icarus 102:261–285
Moudden Y, McConnell JC (2005) A new model for multiscale modeling of the Martian atmosphere, GM3. J Geophys Res 110: E04001 doi:10.1029/2004JE002354
Murphy JR, Toon OB, Haberle RM, Pollack JB (1990) Numerical simulations of the decay of Martian dust storms. J Geophys Res. 95:14629–14648
Newman CE, Lewis SRP, Read L, Forget F (2002a) Modeling the Martian dust cycle, 1, Representations of dust transport processes. J Geophys Res 107:E12–5123
Newman CE, Lewis SR, Read PL, Forget F (2002b) Modeling the Martian dust cycle, 2, Multiannual radiatively active dust transport simulations. J Geophys Res 107:E12–5124
Ockert-Bell ME, Bell JF, III, Pollack JB, McKay CP, Forget F (1997) Absorption and scattering properties of the Martian dust in the solar wavelengths. J Geophys Res 102:9039–9050
Pankine AA, Ingersoll AP (2004) Interannual variability of Mars global dust storms: an example of self-organized criticality? Icarus 170:514–518
Pollack JB, Ockert-Bell ME, Shepard MK (1995) Viking Lander image analysis of Martian atmospheric dust. J Geophys Res 100:5235–5250
Pruppacher HR, Klett JD (1997) Microphysics of clouds and precipitation. Kluwer Academic Publishers, Dordrecht, 976 pp
Rennó NO, Nash AA, Lunine J, Murphy J (2000) Martian and terrestrial dust devils: test of a scaling theory using Pathfinder data. J Geophys Res 105:1859–1865
Savijarvi H (1999) A model study of the atmospheric boundary layer in the Mars Pathfinder lander conditions. Quart J Roy Meteorol Soc 125:483–493
Seinfeld JH, Pandis SN (1998) Atmospheric chemistry and physics: from air pollution to climate change. Wiley, New York, 1326 pp
Shao Y (2000) Physics and modelling of wind erosion. Kluwer Academic Publishers, Dordrecht, 408 pp
Shao Y, Lu H (2000) A simple expression for wind erosion threshold friction velocity. J Geophys Res 105:22437–22443
Stull RB (1988) An introduction to boundary layer meteorology. Kluwer Academic Publishers, Dordrecht, 666 pp
Taylor PA, Li P-Y, Wilson JD (2002) Lagrangian simulation of suspended particles in the neutrally stratified atmospheric boundary layer. J Geophys Res 10.1029/2001 JD002049
Toigo AD, Richardson MI, Ewald SP, Gierasch PJ (2003) Numerical simulation of Martian dust devils. J Geophys Res 108(E6):5047 doi:10.1029/2002 JE002002
Tomasko MG, Doose LR, Lemmon M, Smith PH, Wegryn E (1999) Properties of dust in the Martian atmosphere from the Imager on Mars Pathfinder. J Geophys Res 104:8987–9007
Washington R, Todd MC, Engelstaedter S, Mbainayel S, Mitchell F (2006) Dust and the low-level circulation over the Bodélé Depression, Chad: Observations from BoDEx 2005. J Geophys Res 111: D03201, doi:10.1029/2005JD006502
Xiao J, Taylor PA (2002) On equilibrium profiles of suspended particles. Boundary-layer Meteorol. 105:471–482
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Taylor, P.A., Li, PY., Michelangeli, D.V., Pathak, J., Weng, W. (2007). Modelling dust distributions in the atmospheric boundary layer on Mars. In: Baklanov, A., Grisogono, B. (eds) Atmospheric Boundary Layers. Springer, New York, NY. https://doi.org/10.1007/978-0-387-74321-9_11
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DOI: https://doi.org/10.1007/978-0-387-74321-9_11
Publisher Name: Springer, New York, NY
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