Inferring the Shallow Layered Structure at the Chang’E-4 Landing Site: A Novel Interpretation Approach Using Lunar Penetrating Radar

Giannakis, Iraklis, Zhou, Feng, Warren, Craig and Giannopoulos, Antonios (2021) Inferring the Shallow Layered Structure at the Chang’E-4 Landing Site: A Novel Interpretation Approach Using Lunar Penetrating Radar. Geophysical Research Letters, 48 (16). e2021GL092866. ISSN 0094-8276

[img] Text
2021GL092866.pdf - Published Version
Restricted to Repository staff only until 12 February 2022.

Download (1MB) | Request a copy
[img] Text
AGU_Manuscript_final_no_red.pdf - Accepted Version
Restricted to Repository staff only

Download (8MB) | Request a copy
Official URL: https://doi.org/10.1029/2021gl092866

Abstract

The current paper investigates the shallow layers of the lunar regolith at the Chang’E-4 landing site. Four layers between 0-10 meters were identified using lunar penetrating radar. Based on these outputs, a revised stratigraphic model is suggested for the post-Imbrian ejecta at the Von Ka\' rma\' n crater. The layers were previously unseen due to the smooth boundaries between them. The revised model was inferred using an advanced hyperbola-fitting scheme. Applying conventional hyperbola-fitting to non-homogeneous media results in errors and inaccuracies that are often wrongly assumed to be negligible. We propose a novel hyperbola-fitting scheme that is not constrained to homogeneous media and can be applied subject to any arbitrary one-dimensional permittivity distribution. Via this approach, we can estimate the permittivity profile of an investigated area and detect layered structures that were previously transparent to electromagnetic waves due to the gradational dielectric properties at their interfaces.

Item Type: Article
Uncontrolled Keywords: hyperbola-fitting, Ground 50 Penetrating Radar (GPR), Lunar Penetrating Radar (LPR), Chang’E-4, South-Pole Aitken (SPA)
Subjects: F600 Geology
F800 Physical and Terrestrial Geographical and Environmental Sciences
F900 Others in Physical Sciences
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Rachel Branson
Date Deposited: 12 Jul 2021 12:30
Last Modified: 08 Sep 2021 11:00
URI: http://nrl.northumbria.ac.uk/id/eprint/46652

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics