Wieczorek, M. A.
• The bulk density and porosity of the upper highland crust are revisited using a high-resolution GRAIL gravity field model (Park et al., 2015) in combination with LOLA topography (Smith et al., 2017) and independently estimated grain densities
• Using the estimated bulk densities in combination with grain densities estimated from surface composition, the porosity of the upper crust was determined. Each grid point with a spacing of 0.75 deg was calculated using a circular analysis region of 3 deg radius. The grids are equally sampled following the sample theorem of Driscoll and Healy (1994).
• For many impact basins, porosity is reduced within their peak ring and increased near and just exterior to the main rim
• Large impact basins show a stronger pronounced porosity signature than smaller basins, and old impact basins reveal a muted porosity signature compared to younger basins
* Wahl, Daniel (2020), “Lateral variations in bulk density and porosity of the upper crust of the Moon”, Mendeley Data, V1, doi: 10.17632/jmd84c6f64.1
* GRAIL gravity model GL1500 (Park et al., 2015) together with LOLA derived topography (Smith et al., 2017), both available on the Planetary Data System (https://pds.nasa.gov).
Astronomy and Astrophysics
Replication Data for: Crustal Porosity of Lunar Impact Basins
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