The thickness of radar-bright deposits in Mercury's northern hemisphere from individual Mercury Laser Altimeter tracks

Hannah C.M. Susorney, Peter B. James, Catherine L. Johnson, Nancy L. Chabot, Carolyn M Ernst, Erwan M. Mazarico, Gregory A. Neumann, Mallory J Kinczyk

Research output: Contribution to journalArticle (Academic Journal)peer-review

4 Citations (Scopus)
83 Downloads (Pure)

Abstract

The discovery of Mercury's radar-bright deposits has expanded our understanding of volatiles in the solar system. Key to deciphering the history and origin of the radar-bright deposits is an estimate of the volume of radar-bright material that in turn requires a measure of the average thickness of the deposits. In this study we investigate changes in topography across radar-bright deposits hosted in flat-floored, complex craters using individual edited Mercury Laser Altimeter (MLA) tracks. We compare the difference in heights of radar-bright regions and non-radar-bright regions of the crater floor and the difference of similarly sized and located regions in non-radar-bright craters and show that the two populations cannot be distinguished. The similarity of topography in these two sets of craters allows an upper limit of 15 m to be placed on the thickness of the radar-bright deposits.
Original languageEnglish
Pages (from-to)40-45
Number of pages6
JournalIcarus
Volume323
Early online date1 Feb 2019
DOIs
Publication statusPublished - 1 May 2019

Keywords

  • Mercury
  • Polar deposits
  • Laser altimeter

Fingerprint Dive into the research topics of 'The thickness of radar-bright deposits in Mercury's northern hemisphere from individual Mercury Laser Altimeter tracks'. Together they form a unique fingerprint.

Cite this