Crater Populations on the Walls of Complex Craters found near the Lunar Southern Pole
Creators
- 1. Department of Geosciences, Auburn University, Auburn, AL
Contributors
- 1. NASA Ames Research Center, Mountain View, CA
- 2. NASA Marshall Space Flight Center, Huntsville, AL
- 3. Department of Geosciences, Auburn University, Auburn, AL; Department of Aerospace Engineering, Auburn University, Auburn, AL
Description
Date: June 23, 2022
Authors: C. L. Talkington and P. E. Montalvo
Notes: Data sets contain crater counts on floors of 16 lunar south polar complex craters and surface slopes at all counted craters.
Data sets in crater_data.xlsx are updated from the previous version to improve the model age calculation. The current version uses an approach using Poisson’s statistics (Michael and Neukum, 2010; Michael et al., 2016).
ArcMap 10.7.1 was used in addition to the CraterTools Add in toolset (Kniessl et al., 2011) and DEM data from the PDS Geosciences Node (https://pds-geosciences.wustl.edu/lro/lro-l-lola-3-rdr-v1/lrolol_1xxx/data/lola_gdr/polar/jp2/) to visualize the craters.Complex craters were selected from previous studies (Cannon et al., 2020; Deutsch et al., 2020; Tye et al., 2015) as regions of interest. The counts from this work span the walls of 16 complex craters found near the lunar southern pole, while those cited refer to the floor regions (Cannon et al., 2020; Deutsch et al., 2020), or the entire crater (Tye et al., 2015). Craters were included within the analysis from definitions described by Deutsch et al., (2020) as circular features with central depressions. We considered primary craters only, and those with morphologies reflecting secondary crater populations (crater chains or clusters) were omitted. Crater sizes range from sub km range to 35 km in diameter. Their slope conditions range from very shallow to very steep.
PDS Geoscience Node DEM used ldem_80s_20m. This DEM has a resolution of 20 m/pixel and was updated 6/2/2017.
Data format, .csv files:
- Column A: Diameter. Crater diameter [km]
- Column B: Slope angle of crater [deg] determined by the 500 m buffer size from the determined crater radius.
Notes
Files
Crater Data.zip
Files
(115.5 kB)
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Additional details
References
- Cannon, K. M., Deutsch, A. N., Head, J. W., & Britt, D. T (2020). Stratigraphy of Ice and Ejecta Deposits at the Lunar Poles. Geophysical Research Letters, 46, e2020GL088920. doi:10.1029/2020GL088920
- Deutsch, A. N., Head, J. W., & Neumann, G. A. (2020). Analyzing the ages of south polar crater on the moon: Implications for the sources and evolution of surface water ice. Icarus, 336, 113455, doi: 10.1016/j.icarus.2019.113455
- Kniessl, T., van Gasselt, S., & Neukum, G. (2011). Map-projection-independent crater size-frequency determination in GIS environments. New software tool for ArcGIS. Planetary and Space Science, 59, 1243-1254, doi:10.1016/j.pss.2010.03.015
- Michael and Neukum (2010), Planetary surface dating from crater size-frequency distribution measurements: Partial resurfacing events and statistical age uncertainty, Earth and Planetary Science Letters, 294, 3, doi:10.1016/j.epsl.2009.12.041
- Michael et al. (2016), Planetary surface dating from crater size-frequency distribution measurements: Poisson timing analysis, Icarus, 277, p.279-285, doi:10.1016/j.icarus.2016.05.019.
- PDS Geosciences Node: https://pds-geosciences.wustl.edu/lro/lro-l-lola-3-rdr-v1/lrolol_1xxx/data/lola_gdr/polar/jp2/
- Tye, A. R., Fassett, C. I., Head, J. W., Mazrico, E., Basilevsky, A. T., Neumann, G. A., et al. (2015). The age of lunar south circumpolar craters Haworth, Shoemaker, Faustini, and Shackleton: Implications for regional geology, surface processes, and volatile sequestration. Icarus, 255, 70-77. doi:10.1016/j.icarus.2015.03.016