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Morphological differentiation characteristics and classification criteria of lunar surface relief amplitude

Journal of Geographical Sciences 2022年第11期32卷 2365-2378页

作者： DENG Jiayin CHENG Weiming LIU Qiangyi JIAO Yimeng LIU Jianzhong State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources ResearchCASBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China CAS Center for Excellence in Comparative Planetology Hefei 230052China lunar and Planetary Science Research Center Institute of GeochemistryCASGuiyang 550002China

lunar landforms are the results of geological and geomorphic processes on the lunar *** is very important to identify the types of lunar *** is the scientific study of the origin and evolution of morphological landforms on planetary *** and relief amplitude are the most commonly used geomorphic indices in geomorphological classification *** studies have determined the elevation classification criteria of the lunar *** this paper,we focus on the classification criteria of the topographic relief amplitude of the lunar *** estimate the optimal window for calculating the relief amplitude of the lunar surface,we use the mean change-point method based on LOLA(lunar Orbiter Laser Altimeter)Digital Elevation Model(DEM)data and SLDEM2015 DEM data combining observations from LOLA and SELenological and Engineering Explorer Terrain Camera(SELENE TC).The classification criterion of the lunar surface relief amplitude is then determined according to the statistical analysis of basic lunar *** the topographic relief amplitudes of 100 m,200 m,300 m,700 m,1500 m and 2500 m as thresholds,the lunar surface is divided into seven geomorphic types,including minor microrelief plains(<100 m),minor microrelief platforms[100 m,200 m),microrelief landforms[200 m,300 m),small relief landforms[300 m,700 m),medium relief landforms[700 m,1500 m),large relief landforms[1500 m,2500 m)and extremely large relief landforms(≥2500 m).The minor microrelief plains are mainly distributed in the maria and the basalt filled floors of craters and basins,while the minor microrelief platforms are mainly in the transition regions between the maria and *** microrelief landforms are mainly located in regions with relatively high topography,such as wrinkle ridges and sinuous rilles in the *** small relief landforms are mainly scattered in the central peak and floor fractures of *** medium relief landforms are mai

关键词： lunar geomorphological classification schemes morphometric features lunar relief amplitude characteristics analysis classification criterion

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