Abstract:

Lunar mare ridge is one of the most common linear structures of the moon surface; it can reflect the regional tectonic characteristics and stress state; and it is of great significance for studying the geological evolution. Previous mode of the interpretation of the lineaments was usually artificial visual interpretation. We use the data of remote sensing image,  laser altimeter data and so on for interpretation and extraction lineaments of the lunar surface. With the improvement of the data and the requirement of the efficiency, an effective method for the automatic extraction of linear structure is of necessity. This study is based on the landform curvature method and the digital datasets including CE-1-LAM (Chang’E-1, Laser Altimeter) data, LRO-WAC (Lunar Reconnaissance Orbiter, Wide Angle Camera) data, and LRO-LOLA (Lunar Reconnaissance Orbiter, Lunar Orbiter Laser Altimeter) data with resolution of 60 m/pix; the study area is Mare Serenitatis and its linear structures were automatically extracted. The result shows that the method of using landform curvature is feasible. Compared with the results of the artificial interpretation, the accuracy of this method is higher, and the efficiency was improved. It can provide the basis for further study of the tectonic evolution and improve the interpretation precision and efficiency.

Key words:  linear structures, automatic detection, landform curvature