气候变化领域集成服务门户(CCPortal): Assessing the Roughness Properties of Circumpolar Lunar Craters: Implications for the Timing of Water-Ice Delivery to the Moon

CCPortal

DOI	10.1029/2020GL087782
	Assessing the Roughness Properties of Circumpolar Lunar Craters: Implications for the Timing of Water-Ice Delivery to the Moon
	Deutsch A.N.; Head J.W.; Neumann G.A.; Kreslavsky M.A.; Barker M.K.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:15
英文摘要	The roughness properties of impact craters are valuable indicators of crater degradation and can provide insight into crater ages. We evaluate the roughness of lunar craters from different geologic eras, confirming that young, Copernican craters are distinctly rougher than older craters. We evaluate the potential age of small (less than ~15 km) craters that are thought to host surface ice by quantifying the roughness inside these craters, as well as outside. Interior roughness may be subdued by slope processes or the presence of volatiles. The distribution of ice-bearing craters is skewed toward roughness values higher than those of pre-Imbrian craters, although no ice-bearing craters are within the Copernican-only domain in roughness space. All of the 15 rough, permanently shadowed craters that are found within the Copernican-only domain lack water-ice detections, suggesting that either ice has not been delivered to these young craters or that it has since been destroyed. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Moon; Timing circuits; Crater degradations; Impact craters; Slope process; Water ice; Ice; crater; degradation; ice; Moon; quantitative analysis; roughness
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170045
作者单位	Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; Department of Earth and Planetary Sciences, University of California, Santa Cruz, CA, United States
推荐引用方式 GB/T 7714	Deutsch A.N.,Head J.W.,Neumann G.A.,et al. Assessing the Roughness Properties of Circumpolar Lunar Craters: Implications for the Timing of Water-Ice Delivery to the Moon[J],2020,47(15).
APA	Deutsch A.N.,Head J.W.,Neumann G.A.,Kreslavsky M.A.,&Barker M.K..(2020).Assessing the Roughness Properties of Circumpolar Lunar Craters: Implications for the Timing of Water-Ice Delivery to the Moon.Geophysical Research Letters,47(15).
MLA	Deutsch A.N.,et al."Assessing the Roughness Properties of Circumpolar Lunar Craters: Implications for the Timing of Water-Ice Delivery to the Moon".Geophysical Research Letters 47.15(2020).