Dr Vincent Eke v.r.eke@durham.ac.uk
Associate Professor
An estimate is made of the thickness of the radar-bright deposits in craters near to Mercury’s north pole. To construct an objective set of craters for this measurement, an automated crater finding algorithm is developed and applied to a digital elevation model based on data from the Mercury Laser Altimeter onboard the MESSENGER spacecraft. This produces a catalogue of 663 craters with diameters exceeding 4 km, northwards of latitude +55∘. A subset of 12 larger, well-sampled and fresh polar craters are selected to search for correlations between topography and radar same-sense backscatter cross-section. It is found that the typical excess height associated with the radar-bright regions within these fresh polar craters is (50 ± 35) m. This puts an approximate upper limit on the total polar water ice deposits on Mercury of ∼ 3 × 1015 kg.
Eke, V. R., Lawrence, D. J., & Teodoro, L. F. (2017). How thick are Mercury's polar water ice deposits?. Icarus, 284, 407-415. https://doi.org/10.1016/j.icarus.2016.12.001
Journal Article Type | Article |
---|---|
Acceptance Date | Dec 1, 2016 |
Online Publication Date | Dec 5, 2016 |
Publication Date | Mar 1, 2017 |
Deposit Date | Dec 19, 2016 |
Publicly Available Date | Dec 5, 2017 |
Journal | Icarus |
Print ISSN | 0019-1035 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 284 |
Pages | 407-415 |
DOI | https://doi.org/10.1016/j.icarus.2016.12.001 |
Public URL | https://durham-repository.worktribe.com/output/1368017 |
Accepted Journal Article
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Publisher Licence URL
http://creativecommons.org/licenses/by-nc-nd/4.0/
Copyright Statement
© 2016 This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
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