孙淑娟等：Investigation of the depth and diameter relationship of subkilometer-diameter lunar craters

Investigation of the depth and diameter relationship of subkilometer-diameter lunar craters

作者:Sun, SJ (Sun, Shujuan)[ 1 ] ; Yue, ZY (Yue, Zongyu)[ 2 ] ; Di, KC (Di, Kaichang)[ 2 ]

ICARUS

卷: 309  页: 61-68

DOI: 10.1016/j.icarus.2018.02.031

出版年: JUL 15 2018

文献类型:Article

摘要

The depth and diameter relationship is one of the most important characteristics of craters; however, previous studies have focused mostly on large-diameter craters because of the limitations of image resolution. Recently, very high resolution images have been obtained that make it possible to expand this field of study to craters with diameters of <1 km. Using images with resolution of up to 0.5 m, acquired by the Lunar Reconnaissance Orbiter, we investigated the depth and diameter relationship of fresh craters with subkilometer diameters. We selected craters from lunar maria and highlands, and we made precise measurements of their diameters and depths. The results show that the d/D ratio of small craters in the lunar maria and highlands, which varies from similar to 0.2 to similar to 0.1, is generally shallower than that of larger craters. We propose that the reason for the difference is because of the low strength of the lunar surface material. The fitted power law parameters of lunar mare and highland craters were found to be different, and that might be explained by terrain-related differences. (C) 2018 Elsevier Inc. All rights reserved.

通讯作者地址: Yue, ZY (通讯作者)

Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China.

地址:

[ 1 ] Natl Adm Surveying Mapping & Geoinformat, Remote Sensing Geoinformat Inst 3, Chengdu 610100, Sichuan, Peoples R China

[ 2 ] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing 100101, Peoples R China