Program with Links to Abstracts

8:20 AM

Session Introduction

8:25 AM

Jia W. Y.* Luo X. Z. Ding M. Zhu M. H.

Effects of Megaregolith Porosity Structure on the Gravity Signature of Lunar Craters: Insights from Numerical Simulations [#1920]
Porous lunar megaregolith. Different pre-impact porosities and thickness of the top porous layer. Different gravity anomalies of impact craters.

8:35 AM

Hundal C. B.* Evans A. J. Mustard J. F.

Factor Analysis Applied to Gravity Profiles of Lunar Impact Craters [#2197]
Impact craters greatly influence crustal porosity. We improve crater signal isolation in GRAIL data by reducing to zonal harmonics and applying factor analysis.

8:45 AM

Luo X.-Z.* Zhu M.-H. Ding M. Manske L. Luther R. et al.

Numerical Simulations of Shock Melting in Oblique Impacts [#1427]
We performed a systematic suite of numerical simulations to quantify melt production for oblique impacts on the Moon.

8:55 AM

Collins G. S.* Miljković K. Wójcicka N. Rajšić A. Lognonné P. et al.

Modeling the 150-m Diameter "Christmas Eve" Impact Crater on Mars [#2297]
Meteoroids falling, all around us / Scientists singing, having fun / It’s the reason for deeper understanding / Merry Christmas Eve crater everyone.

9:05 AM

Panel Q&A

9:25 AM

Harwell M. L.* Stewart S. T. Citron R. I. Caldwell W. K. Plesko C. S.

Gaining Insights into Impact Events Through Rheology Regime Tracking [#2838]
Tracking rheology / Gives insights into impacts / Nice animations.

9:35 AM

Gao Y.* Zhu M.-H. Luther R. Wünnemann K.

Numerical Simulation of Impact-Induced Seismic Wave Generation and Propagation Using a Coupled Approach [#1990]
We use iSALE and classical seismic wave simulation coupled approach to implement numerical simulation of impact-induced seismic wave generation and propagation.

9:45 AM

Lee S.* Johnson B. C.

Spatial Variation of Dwell Time Induced by a Hypervelocity Impact [#2320]
We tested the spatial dwell time variation in a target to get a better understanding of impact process and check the validity of old estimation for dwell time.

9:55 AM

Rajsic A.* Johnson B. C. Hay H. C. F. C. Collins G. S.

Reproducing Crater Morphologies Using the Melosh Model of Acoustic Fluidisation [#1813]
We investigate the acoustic fluidization process during crater collapse using iSALE-2D shock physics code to simulate simple to complex crater transition.

10:05 AM

Panel Q&A

10:25 AM

Rae A. S. P.* Kenkmann T. Collins G. S. Poelchau M. H. Padmanabha V. et al.

Rate-Dependent Strength and the Scaling of Impact Craters [#1571]
Strain rate controls strength / Strength controls crater scaling / My FORTRAN’s working!

10:35 AM

Du J.* Minton D. A. Blevins A. M.

Modeling the Realistic Rim Outlines of Fresh Lunar Craters Based on Their Power Spectral Densities [#1290]
We create a crater rim that mimics a real lunar crater based on its power spectral density, from which the simple-to-complex transition can be found at D = 20 km.

10:45 AM

Yamamoto Y.* Arakawa M. Yasui M. Hasegawa S. Yokota Y.

Impact Experiments for Crater Size Scaling Laws on Rubble-Pile Asteroids [#2081]
We conducted impact experiments on granular targets composed by low-strength coarse-grains to study the effects of size and strength on the crater scaling law.

10:55 AM

Sandtorf-McDonald J. R.* Chevrier V. F.

Clathrate Crater Profiles: Impact Modeling in Clathrate-Rich Locations [#2635]
This work uses iSALE shock physics program to model differences between craters produced in water ice and methane clathrate target surfaces.

11:05 AM

Panel Q&A

11:25 AM

Session Closure