An Insolation Activated Dust Layer on Mars
An Insolation Activated Dust Layer on Mars
复制标题
火星上的绝缘激活尘埃层
DOI:
10.1016/j.icarus.2015.06.002
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发表时间:
2015
期刊:
影响因子:
3.2
通讯作者:
M. Kocifaj
中科院分区:
文献类型:
--
作者:
C. de Beule;G. Wurm;T. Kelling;M. Köster;M. Kocifaj
The illuminated dusty surface of Mars acts like a gas pump. It is driven by thermal creep at low pressure within the soil. In the top soil layer this gas flow has to be sustained by a pressure gradient. This is equivalent to a lifting force on the dust grains. The top layer is therefore under tension which reduces the threshold wind speed for saltation. We carried out laboratory experiments to quantify the thickness of this activated layer. We use basalt with an average particle size of 67 μm. We find a depth of the active layer of 100–200 μm. Scaled to Mars the activation will reduce threshold wind speeds for saltation by about 10%.
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DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
C. de Beule;T. Kelling;G. Wurm;J. Teiser;T. Jankowski
通讯作者:
T. Jankowski
影响因子:
19.6
作者:
de Beule, Caroline;Wurm, Gerhard;Teiser, Jens
通讯作者:
Teiser, Jens
影响因子:
--
作者:
B. White;B. M. Lacchia;R. Greeley;R. Leach
通讯作者:
B. White;B. M. Lacchia;R. Greeley;R. Leach
影响因子:
5.2
作者:
G. Wurm;J. Teiser;D. Reiss
通讯作者:
D. Reiss
影响因子:
6.5
作者:
T. Jankowski;G. Wurm;T. Kelling;J. Teiser;W. Sabolo;P. J. Guti'errez;I. Bertini
通讯作者:
I. Bertini