Topographic Evolution of Von Kármán Crater Revealed by the Lunar Rover Yutu‐2
Year: 2019
Type: article
Abstract: Chang'e‐4 (CE‐4) achieved the first farside landing in Von Kármán crater. In the landing site, linear features have been identified previously from SLDEM and considered to be ejecta from the neighboring Finsen crater. The 5 cm grid spacing digital elevation model of the landing site, generated from the rover's panoramic images, provides more details of the rugged terrain. We further interpret the superimposition of NE‐SW ejecta from Finsen crater on the underlying SE‐NW dome‐like surface relief from Alder crater. The landing site is ~70 m higher than the mare basalts within Von Kármán crater. Numerical simulations predict ~30 and ~35 m ejecta deposited at the landing site from Finsen and Alder craters, respectively. The good agreement between the digital elevation model data and ejecta predicted thickness reveals the topographic evolution of Von Kármán crater, indicating that the rover‐measured material is excavated from Finsen crater with possible contributions from Alder crater.
Source: Geophysical Research Letters
DOI: 10.1029/2019gl085252
Institutions: Macau University of Science and Technology, Chinese Academy of Sciences, Institute of Remote Sensing and Digital Earth, State Key Laboratory of Remote Sensing Science, State Key Laboratory of Lunar and Planetary Sciences, Institute of Geology and Geophysics, Beijing Aerospace Flight Control Center, Xi'an Institute of Optics and Precision Mechanics
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2990519922