期刊
GEOPHYSICAL RESEARCH LETTERS
卷 33, 期 19, 页码 -出版社
AMER GEOPHYSICAL UNION
DOI: 10.1029/2006GL026798
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The heat input to Martian dust devils due to solar warming of suspended particles is assessed based on a prior estimate of dust loading and from an analysis of shadows cast by dust devils in images taken from orbit. Estimated values for solar heating range from 0.12 to 0.57 W/m(3) with associated temperature increases of 0.011 to 0.051 degrees C per second. These warming rates are comparable to the adiabatic cooling rate expected for a gas parcel rising on Mars with a vertical velocity of 10 m/s. Solar warming of suspended dust serves to maintain buoyancy in a rising dust plume and may be one cause for the large scale of dust devils observed on Mars.
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