Dust devils on Earth and Mars
نویسندگان
چکیده
منابع مشابه
Retrieving Dust Properties by Radiative Transfer Modelling of Dust Devils on Earth and Mars
To date, characterisation of dust devils by interpreting spectral measurements taken during a transit over a spectroscopic instrument has yet to be done and would provide valuable information of the physical size, dust load and internal structure of transiting dust devils. A Monte Carlo Radiative Transfer model (MCRT) was developed to investigate the spectral variations during a dust devil tran...
متن کاملDust devils as observed by Mars Pathfinder
[1] Dust devils are localized meteorological phenomena frequently observed in terrestrial dry lands and desert landscapes as well as on Mars. They are low-pressure, warm core vortices that form at the bottom of convective plumes and loft dust from the surface. They move with the speed of the ambient wind and are tilted by wind shears. The Mars Pathfinder detected dust devils as dust plumes in t...
متن کاملPower law distribution of pressure drops in dust devils Observation techniques and Earth–Mars comparison
Data from the Pathfinder and Phoenix landers on Mars show transient pressure drops ( 1–4 per day) attributed to nearby encounters with dust devils or dust-free vortices. The distribution of pressure drop amplitudes is consistent with a truncated power law distribution with a slope of 2, similar to that suggested previously for the optical diameters of dust devils. Comparable data from terrestri...
متن کاملDust “ Drifts ” on Mars
Introduction: Eolian sedimentary deposits are important because they provide a record of the direction and strength of winds on Mars and the type and flux of sediments transported by the winds. While Martian sand dunes and transverse aeolian ridges ("TARs") have been thoroughly studied, the sedimentary deposits left behind by blowing dust have received comparatively little attention to date. Wi...
متن کاملField measurements of horizontal forward motion velocities of terrestrial dust devils: Towards a proxy for ambient winds on Mars and Earth
Please cite this article as: Balme, M.R., Pathare, A., Metzger, S.M., Towner, M.C., Lewis, S.R., Spiga, A., Fenton, L., Renno, N.O., Elliott, H.M., Saca, F.A., Michaels, T., Russell, P., Verdasca, J., Field measurements of horizontal forward motion velocities of terrestrial dust devils: Towards a proxy for ambient winds on Mars and Earth, Icarus (2012), doi: http://dx.doi.org/10.1016/j.icarus.2...
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ژورنال
عنوان ژورنال: Reviews of Geophysics
سال: 2006
ISSN: 8755-1209
DOI: 10.1029/2005rg000188