摘要The Mars Global Surveyor Mars Orbiter Camera (MOC) took images of a series of strange horseshoe-shaped dunes at the North Martian pole in 2004. These dunes would be formed due to the strong Martian winds whose pattern is different from that on the Earth. We study the cause of the formation of these dunes and make a model for them. In this model, wind speed near the north Martian pole can be evaluated based on the shape of the dunes. We also estimate the surpassing speed of dunes of different sizes.
Abstract：The Mars Global Surveyor Mars Orbiter Camera (MOC) took images of a series of strange horseshoe-shaped dunes at the North Martian pole in 2004. These dunes would be formed due to the strong Martian winds whose pattern is different from that on the Earth. We study the cause of the formation of these dunes and make a model for them. In this model, wind speed near the north Martian pole can be evaluated based on the shape of the dunes. We also estimate the surpassing speed of dunes of different sizes.
ZHU Jie;CHEN Chu-Xin**. Model for Formation of Dunes at the North Martian Pole[J]. 中国物理快报, 2010, 27(11): 119601-119601.
ZHU Jie, CHEN Chu-Xin**. Model for Formation of Dunes at the North Martian Pole. Chin. Phys. Lett., 2010, 27(11): 119601-119601.
[1] Pettengill G H and Ford P G 2000 Geophy. Res. Lett. 27 5
[2] Zhen Y Q, Zhao B and Zhu Y W 2005 Discovery on Mars (Shanghai: Shanghai Scientific and Technological Literature Publishing House) (in Chinese)
[3] NASA Photojournal PIA06724 http://photojournal.jpl.nasa.gov/catalog/PIA06724
[4] NASA/JPL-Caltech/University of Arizona 2008 Image by Phoenix 's Robotic Arm Camera
[5] NASA Mars Fact Sheet http://nssdc.gsfc.nasa.gov/planetary/factsheet/marsfact.html
[6] Oertel H 2008 Prandtl's Essentials of Fluid Mechanics (Beijing: Science Press) (in Chinese)
[7] Yang W H 2004 Mechanics (Hefei: University of Science and Technology of China Press) (in Chinese)
2010, Vol. 27 
