Meteorology of the Red Planet by dust devils

摘要

Many dust devils were detected by high resolution camera images on the surface of mars, that is remarkably similar in arid regions on Earth. The dust devils result from sunshine warming the ground, prompting convective rising of air. The hot air rises and begins to spin faster and faster as it compresses. The dust devils may serve a major role in the meteorology of the Red Planet. However, the derive scaling relations between dust devil radius, pressure profiles, wind speeds, and heights have remained unclear. In this work, we test a dust devil theoretical model that identify a relationship between these parameters. To do this, we used data which provides diameters and heights at different seasons. We extended the theoretical model by proposing an equation that estimate the eyewall velocity from a dust devil’s height.