Analysis and mapping of lunar wrinkle ridges (LWRs) using automated LWRs detection process with LROC-WAC and LOLA data

IF 2.6 3区 物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS
Aqil Tariq, Jianguo Yan, Qingyun Deng, Jean-Pierre Barriot
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Abstract

Maps of lunar wrinkle ridges (LWRs) were created from 70°N to 70°S and 140°E to 140°W (extracted and highlighted the major LWRs area) using automated LWRs detection process with Lunar Reconnaissance Orbiter Camera wide range angle camera and Lunar Orbiter Laser Altimeter data. Automatic detection of LWRs is challenging because the ridges are of irregular shapes and many ridges have been eroded and/or degraded over time. It’s a preliminary study of automated ridge detection from DEM data. Statistics and measurements of the extracted LWRs, including orientation, extent, length, height, and elevation offset, were performed based on the mapping of lunar ridges. The identified ridges were classified based on their orientation, distribution, direction, and each class were further divided over basalts, and nearby highlands. According to the findings, 3,375 segments with a total length of 26,455.01 km were identified, and the average elevation offset, width, and height of all the wrinkle ridges were 40.39 m, 3.47 km, and 0.29 km respectively after weighting by length. The LWRs were divided into three morphologies and distributions: parallel ridges, isolated ridges, and concentric ridges. The vast majority of LWRs were found in basalts area, with an extension into neighboring highland. The relations between the morphological parameters were further quantitatively analyzed, and a similar linear correlation between the width and height was found in each class of lunar ridges, implying that small and large ridges were formed as a continuum and that the three classes of ridges were probably formed by some common processes. Finally, the relations between the lunar wrinkle ridges and other geomorphic phenomena were analyzed, indicating that purely volcanic origin or buried premare structures are difficult to reconcile with the investigation. In addition, the consistency between the occurrence of the lunar wrinkle ridges and the thickness of lunar maria indicates that the formation of lunar wrinkle ridges is closely related to the lunar maria; nevertheless, the statistical NW direction of individual classes of LWRs also proposes the presence of an appropriate stress field during the process of their formation.
基于LROC-WAC和LOLA数据的月球褶皱脊自动探测分析与制图
利用月球轨道侦察相机(lunar Reconnaissance Orbiter Camera)的广角相机和月球轨道激光高度计(lunar Orbiter Laser Altimeter)数据,对月球褶皱脊(LWRs)进行自动探测,在70°N至70°S和140°E至140°W范围内绘制了褶皱脊(LWRs)地图(提取并突出显示了主要褶皱脊区域)。由于脊线形状不规则,而且随着时间的推移,许多脊线已经被侵蚀和/或退化,因此LWRs的自动检测具有挑战性。这是基于DEM数据的山脊自动探测的初步研究。基于月脊图,对提取的地表水波进行了方位、范围、长度、高度和仰角偏移等统计和测量。根据确定的脊的方位、分布、方向进行分类,并在玄武岩及其附近高地上进一步划分。结果表明,共识别出3375个区段,总长度为26455.01 km,经长度加权后,各褶皱脊的平均高程偏移量为40.39 m,宽度为3.47 km,高度为0.29 km。研究结果表明,低沸点可分为平行脊、孤立脊和同心脊三种形态和分布。绝大多数低沸点分布在玄武岩区,并向邻近高地延伸。进一步定量分析了形态参数之间的关系,发现每一类月脊的宽度和高度之间都有相似的线性相关关系,表明大小脊是连续形成的,这三类脊可能是由某种共同的过程形成的。最后,分析了月球褶皱脊与其他地貌现象的关系,认为单纯的火山成因或埋藏的地壳构造难以与调查结果相协调。此外,褶皱脊的出现与月玛丽亚厚度的一致性表明,褶皱脊的形成与月玛丽亚密切相关;然而,各类轻水堆的统计NW方向也表明其形成过程中存在适当的应力场。
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来源期刊
Frontiers in Astronomy and Space Sciences
Frontiers in Astronomy and Space Sciences ASTRONOMY & ASTROPHYSICS-
CiteScore
3.40
自引率
13.30%
发文量
363
审稿时长
14 weeks
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