Rock size-frequency distribution analysis at the Chang'E-3 landing site

作者:Di, KC (Di, Kaichang)[ 1 ] ; Xu, B (Xu, Bin)[ 1 ] ; Peng, M (Peng, Man)[ 1 ] ; Yue, ZY (Yue, Zongyu)[ 1 ] ; Liu, ZQ (Liu, Zhaoqin)[ 1 ] ; Wan, WH (Wan, Wenhui)[ 1 ] ; Li, LC (Li, Lichun)[ 2 ] ; Zhou, JL (Zhou, Jianliang)[ 2 ]

PLANETARY AND SPACE SCIENCE

卷: 120  页: 103-112

DOI: 10.1016/j.pss.2015.11.012

出版年: JAN 2016

摘要

This paper presents a comprehensive analysis of the rock size-frequency distribution at the Chang'E-3 landing site. Using 84 Navcam stereo images acquired at 7 waypoints by the Yutu rover and an interactive stereo image processing system, a total of 582 rocks larger than 0.05 m in diameter were identified and measured. The statistical results of the size-frequency distribution show that the cumulative fractional area covered by rocks versus their diameter follows a simple exponential function and has a convex-up shape on log-log graphs with the slope increasing with diameter. The cumulative number of rocks versus diameter derived by numerically integrating the cumulative fractional area also shows a good fit with the data. A diameter-height relationship was also determined from height and diameter ratios. The observed rock statistics were also compared with those from other lunar missions, including the Surveyor, Apollo, and Lunokhod missions; results suggest that the rock distribution at the Chang'E-3 landing site is similar to that found by Surveyor III. (C) 2015 Elsevier Ltd. All rights reserved.

通讯作者地址: Peng, M (通讯作者)

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

地址:

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

[ 2 ] BACC, Beijing 100094, Peoples R China