Introduction: Atmospheric dust is one of the key constituents of the Martian atmosphere, and variations in dust loading can have a profound effect on the development of the mean circulation [1], and affect ice cloud formation [2] and other aspects of the climate system. While parameterisations for predicting rates of dust emission from the surface are now an important part of Martian general ci...

Significance Reproducing aeolian transport of grains in low-pressure conditions, we have discovered a saltation regime where the threshold is significantly lower than one would expect from extrapolation what observed ambient conditions. This relevant for Martian environment, wind-blown bedforms reveal sediment as major geomorphic agent shaping landscape planet. surprising result reveals existen...

Improving wind erosion prediction and control requires correct estimates of the suspended dust (ss) and saltation (sn) components from field erosion events. The objectives of this study were to (a) develop an improved methodology (HPS) to estimate the fractions of sn and ss in the sediment discharge, and (b) compare HPS predictions to those of LM (Leys and McTainsh, 1996) and CN (Chepil and Woo...

This paper provides a general overview of tactual displays (i.e., devices that communicate to a user through the sense of touch) and issues concerning the development of such displays for wearable computing. A wearable tactile directional display is presented. It takes advantage of a sensory phenomenon called 'sensory saltation' and simulates directional lines and simple geometric patterns dyna...

The soils at the Opportunity site are fine-grained basaltic sands mixed with dust and sulfate-rich outcrop debris. Hematite is concentrated in spherules eroded from the strata. Ongoing saltation exhumes the spherules and their fragments, concentrating them at the surface. Spherules emerge from soils coated, perhaps from subsurface cementation, by salts. Two types of vesicular clasts may represe...