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6	6	|**Organisation** |School of sustainability, Interdisciplinary Center (IDC) Herzliya
7	7	|**Co-Investigators**|Itzhak Katra, Dep. of Geography and Environmental Development, Ben-Gurion Univ. of the Negev, Israel
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	9	+=== Summary ===
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	13	+[[image:SANDEE_manifest.png]]
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	16	+The BGU portable wind tunnel, (c) SANDEE team
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	20	+When small airborne dust particles, carried by the wind, collide and rub against other
	21	+suspended particles or against the surface, they may redistribute charge between them. This
	22	+leads to the phenomenon of the electrification of mineral dust clouds. The efficiency of the
	23	+process and the sign of the charge a particle acquires depends on its properties, like e.g. shape
	24	+or mineralogy. By analogy to these processes on Earth, it is to be expected that sand- and dust
	25	+storms on Mars are electrically charged to some degree, as well. This would have important
	26	+implications for lander operations, orbiter-lander communication and future human missions.
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	28	+The SANDEE experiment aims to address several scientific questions regarding the described
	29	+phenomenon by simulating sandstorms and measuring their dynamic, mineralogical and
	30	+electrical characteristics. In the experiment the behavior of soil samples collected on-site in a
	31	+BGU boundary layer wind tunnel is to be investigated. In the tunnel, the soil samples will be
	32	+subjected to various wind speeds comparable with typical winds in the Negev desert.
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	34	+The team plans for two measurement runs, one at daytime and one at night-time. The aim of
	35	+the night-time run is to include high-speed imaging of the sand movement inside the wind-
	36	+tunnel, in an attempt to detect corona discharges and light emission during eolian transport.