Date of Award
2012-01-01
Degree Name
Master of Science
Department
Geological Sciences
Advisor(s)
Jose M. Hurtado
Abstract
Lava tubes have the potential to serve as a sustainable solution to long-term lunar habitation by providing protection from radiation and micrometeorite bombardment while potentially providing resources in the form of trapped water ice. They also pose compelling science targets in their own right. While the potential benefits of utilizing lunar lava tubes is clear, their discovery is less straightforward. Formation processes for lava tubes do not always result in a surface expression, making their discovery using remotely sensed imagery difficult. Furthermore, there is the potential for lava tubes to be covered by secondary lava flows, impact ejecta, or other deposits, masking their surface expression. We demonstrate that it is possible to detect and characterize subsurface lunar lava tubes with little or no surface expression through the integration of topographic and thermal inertia measurements derived from Lunar Reconnaissance Orbiter (LRO) data. We create topographic, thermal inertia, and morphologic maps over four potential lunar lava tube candidates. We are able to detect a thermal inertia high along the trend of the lava tube candidates, which we believe is the combined result of the subsurface lava tube void space and variations in the thickness and thermophysical properties of the lunar regolith over and adjacent to the subsurface cavity. The thermal inertia results are supported by the presence of a cylindrical, curvilinear topographic high along the trend of the thermal inertia high, specifically at the Ingenii Hole "skylight" location, which is inferred to result from overflow lava tube formation processes. The effectiveness of these new detection methods is supported by a periodic heating and cooling finite element model developed to determine the influence a subsurface cavity would have on surface temperatures. The modeled diurnal surface temperature pattern at a point over a subsurface tube agrees with observations made by the LRO Diviner Lunar Radiometer Experiment (DLRE).
Language
en
Provenance
Received from ProQuest
Copyright Date
2012
File Size
98 pages
File Format
application/pdf
Rights Holder
Jonathan Arthur Meyer
Recommended Citation
Meyer, Jonathan Arthur, "New Methods For The Discovery And Characterization Of Lunar Lava Tubes Using Lunar Reconnaissance Orbiter Data" (2012). Open Access Theses & Dissertations. 2347.
https://scholarworks.utep.edu/open_etd/2347
Included in
Geology Commons, Other Astrophysics and Astronomy Commons, Remote Sensing Commons, The Sun and the Solar System Commons