Morphological differentiation characteristics and classification criteria of lunar surface relief amplitude

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