Saltation transport on Mars

被引:40
作者
Parteli, Eric J. R.
Herrmann, Hans J.
机构
[1] Univ Stuttgart, ICP, Inst Comp Phys, D-70569 Stuttgart, Germany
[2] ETH Honggerberg, Inst Baustoffe, CH-8093 Zurich, Switzerland
[3] Univ Fed Ceara, Dept Fis, BR-60455760 Fortaleza, Ceara, Brazil
关键词
D O I
10.1103/PhysRevLett.98.198001
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present the first calculation of saltation transport and dune formation on Mars and compare it to real dunes. We find that the rate at which grains are entrained into saltation on Mars is 1 order of magnitude higher than on Earth. With this fundamental novel ingredient, we reproduce the size and different shapes of Mars dunes, and give an estimate for the wind velocity on Mars.
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页数:4
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