Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1802345115 |
Direct evidence of surface exposed water ice in the lunar polar regions | |
Li, Shuai1,2; Lucey, Paul G.1; Milliken, Ralph E.2; Hayne, Paul O.3; Fisher, Elizabeth2; Williams, Jean-Pierre4; Hurley, Dana M.5; Elphic, Richard C.6 | |
2018-09-04 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2018 |
卷号 | 115期号:36页码:8907-8912 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Water ice may be allowed to accumulate in permanently shaded regions on airless bodies in the inner solar system such as Mercury, the Moon, and Ceres [Watson K, et al. (1961) J Geophys Res 66: 3033-3045]. Unlike Mercury and Ceres, direct evidence for water ice exposed at the lunar surface has remained elusive. We utilize indirect lighting in regions of permanent shadow to report the detection of diagnostic near-infrared absorption features of water ice in reflectance spectra acquired by the Moon Mineralogy Mapper [M (3)] instrument. Several thousand M (3) pixels (similar to 280 x 280 m) with signatures of water ice at the optical surface (depth of less than a few millimeters) are identified within 20 degrees latitude of both poles, including locations where independent measurements have suggested that water ice may be present. Most ice locations detected in M (3) data also exhibit lunar orbiter laser altimeter reflectance values and Lyman Alpha Mapping Project instrument UV ratio values consistent with the presence of water ice and also exhibit annual maximum temperatures below 110 K. However, only similar to 3.5% of cold traps exhibit ice exposures. Spectral modeling shows that some ice-bearing pixels may contain similar to 30 wt % ice that is intimately mixed with dry regolith. The patchy distribution and low abundance of lunar surface-exposed water ice might be associated with the true polar wander and impact gardening. The observation of spectral features of H2O confirms that water ice is trapped and accumulates in permanently shadowed regions of the Moon, and in some locations, it is exposed at the modern optical surface. |
英文关键词 | lunar polar regions permanently shaded regions lunar water ice near-infrared spectroscopy Moon mineralogy mapper |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000443555000045 |
WOS关键词 | MOON ; MERCURY ; STABILITY ; SPECTRA ; TEMPERATURES ; VOLATILES ; DEPOSITS ; CRATERS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204980 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Hawaii, Dept Geol & Geophys, Honolulu, HI 96822 USA; 2.Brown Univ, Dept Earth Environm & Planetary Sci, Providence, RI 02912 USA; 3.Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA; 4.Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA 90095 USA; 5.Johns Hopkins Univ, Appl Phys Lab, Johns Hopkins Rd, Laurel, MD 20723 USA; 6.NASA, Ames Res Ctr, Mountain View, CA 94035 USA |
推荐引用方式 GB/T 7714 | Li, Shuai,Lucey, Paul G.,Milliken, Ralph E.,et al. Direct evidence of surface exposed water ice in the lunar polar regions[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2018,115(36):8907-8912. |
APA | Li, Shuai.,Lucey, Paul G..,Milliken, Ralph E..,Hayne, Paul O..,Fisher, Elizabeth.,...&Elphic, Richard C..(2018).Direct evidence of surface exposed water ice in the lunar polar regions.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,115(36),8907-8912. |
MLA | Li, Shuai,et al."Direct evidence of surface exposed water ice in the lunar polar regions".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 115.36(2018):8907-8912. |
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