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Morphological Features-Based Descriptive Index System for Lunar Impact Craters

1,2,3, 1,2,3,*, 1,2,3, 4, 4 and 5
Key Lab of Virtual Geographic Environment, Ministry of Education of PRC, Nanjing Normal University, Nanjing 210023, China
State Key Laboratory Cultivation Base of Geographical Environment Evolution (Jiangsu Province), Nanjing 210023, China
Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China
School of Geography and Tourism, Shaanxi Normal University, Xi’an 710062, China
Superengine Graphics Software Technology Development Co. Ltd., Suzhou 215000, China
Author to whom correspondence should be addressed.
ISPRS Int. J. Geo-Inf. 2018, 7(1), 5;
Received: 9 November 2017 / Revised: 19 December 2017 / Accepted: 22 December 2017 / Published: 29 December 2017
PDF [6858 KB, uploaded 29 December 2017]


Lunar impact craters are important for studying lunar surface morphology because they are the most typical morphological units of the Moon. Impact crater descriptive indices can be used to describe morphological features and thus provide direct evidence for both the current state and evolution history of the Moon. Current description methods for lunar impact craters are predominantly qualitative, and mostly focus on their morphological profiles. Less attention is paid to the detailed morphological features inside and outside of the craters. A well-established and descriptive index system is required to describe the real morphological features of lunar impact craters, which are complex in a systematic way, and further improve study, such as heterogeneity analyses of lunar impact craters. This study employs a detailed lunar surface morphological analysis to propose a descriptive index system for lunar impact craters, including indices for the description of individual craters based on their morphological characteristics, spatial structures and basic composition (i.e., crater rim, crater wall, crater floor, central uplift, and ejecta), and indices for crater groups, including spatial distribution and statistical characteristics. Based on the proposed descriptive index system, a description standard for lunar impact craters is designed for categorising and describing these indices in a structured manner. To test their usability and effectiveness, lunar impact craters from different locations are manually detected, and corresponding values for different indices are extracted and organised for a heterogeneity analysis. The results demonstrate that the proposed index system can effectively depict the basic morphological features and spatial characteristics of lunar impact craters. View Full-Text
Keywords: lunar impact craters; morphological features; descriptive index system lunar impact craters; morphological features; descriptive index system

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Chen, M.; Lei, M.; Liu, D.; Zhou, Y.; Zhao, H.; Qian, K. Morphological Features-Based Descriptive Index System for Lunar Impact Craters. ISPRS Int. J. Geo-Inf. 2018, 7, 5.

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