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作者:J.P. Merrison , H.P. Gunnlaugsson ...
来源:[J].Icarus(IF 3.161), 2007, Vol.191 (2), pp.568-580Elsevier
摘要:Abstract(#br)Experimental results are presented of wind induced grain detachment under Mars simulation conditions. A simple force balance equation is applied to quantify the wind shear stress required for removal of glass spheres from a sand bed. The transport of fine grained mar...
作者:J.P. Merrison , H.P. Gunnlaugsson ...
来源:[J].Planetary and Space Science(IF 2.109), 2006, Vol.54 (11), pp.1065-1072Elsevier
摘要:Abstract(#br)Windborne dust is one of the most important and dynamic factors affecting the Martian surface and its atmosphere, yet there lacks a detailed physical understanding how it is transported. We present a miniature laser-based optoelectronic instrument for use on a Mars l...
作者:J.P. Merrison , H.P. Gunnlaugsson ...
来源:[J].Planetary and Space Science(IF 2.109), 2012, Vol.60 (1), pp.328-335Elsevier
摘要:Abstract(#br)The electrification of wind-blown dust grains was studied in a series of laboratory experiments to examine how grain electrification depends on grain size, grain mineralogy, atmospheric composition, atmospheric pressure, and the method of dust dispersal. This work is...
作者:J.P. Merrison , H.P. Gunnlaugsson ...
来源:[J].Planetary and Space Science(IF 2.109), 2004, Vol.52 (13), pp.1177-1186Elsevier
摘要:Abstract(#br)Suspended dust is a dominant component of the Martian environment. It has a major influence on atmospheric circulation and it is deposited widely over the planetary surface causing a serious hazard to instrumentation. In order to study dust transport, quantification ...
作者:J.P. Merrison
来源:[J].Aeolian Research(IF 2.52), 2012, Vol.4, pp.1-16Elsevier
摘要:Abstract(#br)The transport of granular materials by wind has a major impact on our environment through sand/soil erosion and the generation and transport of atmospheric dust aerosols. Terrestrially the transport of dust involves billions of tons of material every year, influencin...
作者:... J.J. Iversen , S. Knak Jensen , J.P. Merrison
来源:[J].Aeolian Research(IF 2.52), 2014, Vol.13, pp.77-80Elsevier
摘要:Abstract(#br)We have undertaken a set of wind erosion experiments on a simple and well defined mineral, quartz. In these experiments wind action is simulated by end over end tumbling of quartz grains in a sealed quartz flask. The tumbling induces collisions among the quartz ...
作者:J.P. Merrison , M.C. Mittelmeijer-Hazeleger ...
来源:[J].Planetary and Space Science(IF 2.109), 2014, Vol.103, pp.205-218Elsevier
摘要:Abstract(#br)Dunes in the northern lowlands on planet Mars are composed of volcanic sands with high contents of volcanic glass and these deposits are mobilised and transported by winds in the present-day surface environment. In this experimental study we measured fluid thres...
作者:J.P. Merrison , H.P. Gunnlaugsson ...
来源:[J].Planetary and Space Science(IF 2.109), 2005, Vol.54 (1), pp.28-44Elsevier
摘要:Abstract(#br)Motivated by questions raised by the magnetic properties experiments on the NASA Mars Pathfinder and Mars Exploration Rover (MER) missions, we have studied in detail the capture of airborne magnetic dust by permanent magnets using a computational fluid dynamics (CFD)...
作者:... H.P. Gunnlaugsson , J.P. Merrison , A.L. Vendelboe
来源:[J].Planetary and Space Science(IF 2.109), 2008, Vol.57 (5), pp.628-631Elsevier
摘要:Abstract(#br)A fine grained magnetic iron oxide precipitate found in Denmark has been studied with regard to grain size, magnetic properties, aerosol transport, grain electrification, aggregation and optical reflectance. It has shown itself to be a good Martian dust analogue...
作者:J.P. Merrison , C.F. Brædstrup
来源:[J].Icarus(IF 3.161), 2012, Vol.220 (1), pp.1-5Elsevier
摘要:Abstract(#br)The effects of external electric fields upon the wind driven detachment of granular material has been investigated experimentally using an environmental wind tunnel facility. It has been shown that for sand sized grains on an electrically conductive surface there is ...

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