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Weak Dust Activity Near a Geologically Young Surface Revealed by Chang'E-3 Mission

机译:嫦娥三名任务透露出地质年轻表面附近的弱粉尘活动

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摘要

In spite of great scientific and engineering interests in lunar exploration, natural dust activity near the Moon surface remains unclear. According to distinct reflectance features of lunar rocks and regolith observed by Chang'E-3 mission, long-term dust activity near a young surface is quantified with a new method. We found that a dust deposition upper line on rocks is about 28 cm above the ground. Below this line, the quantity of dust deposits becomes smaller as the altitude ascends, whereas above the line, no visible or only negligible amount of dust is distributed on the rocks. This dust distribution pattern could be explained by dust electrostatic levitation process. The results indicate distinctively weak long-term dust activity near the young surface and suggest possible selection of geologically young regions as landing sites or lunar bases to minimize the effect of dust grains.
机译:尽管月球勘探中的科学和工程兴趣很大,但月球表面附近的自然粉尘活动仍然不清楚。 根据长安-3任务观察到的月球岩石和鲁代岩的不同反射特征,用新方法量化了年轻表面附近的长期粉尘活动。 我们发现岩石上的灰尘沉积占地面积在地上约28厘米。 在此线下方,随着高度上升的情况下,除尘器的数量变得更小,而在该线上以上,没有可见或唯一可忽略的灰尘量在岩石上分布。 这种粉尘分布图案可以通过灰尘静电悬浮过程来解释。 结果表明,在年轻表面附近的明显弱的长期粉尘活动,并表明了作为着陆位点或月球基地的地质年轻地区的可能选择,以尽量减少粉尘颗粒的影响。

著录项

  • 来源
    《Geophysical Research Letters》 |2019年第16期|共9页
  • 作者单位

    Macau Univ Sci &

    Technol State Key Lab Lunar &

    Planetary Sci Macau Peoples R China;

    Macau Univ Sci &

    Technol State Key Lab Lunar &

    Planetary Sci Macau Peoples R China;

    Macau Univ Sci &

    Technol State Key Lab Lunar &

    Planetary Sci Macau Peoples R China;

    Macau Univ Sci &

    Technol State Key Lab Lunar &

    Planetary Sci Macau Peoples R China;

    Macau Univ Sci &

    Technol State Key Lab Lunar &

    Planetary Sci Macau Peoples R China;

    Macau Univ Sci &

    Technol State Key Lab Lunar &

    Planetary Sci Macau Peoples R China;

    Macau Univ Sci &

    Technol State Key Lab Lunar &

    Planetary Sci Macau Peoples R China;

    Macau Univ Sci &

    Technol State Key Lab Lunar &

    Planetary Sci Macau Peoples R China;

    Macau Univ Sci &

    Technol State Key Lab Lunar &

    Planetary Sci Macau Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地球物理学;
  • 关键词

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