Literature DB >> 31031414

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

Hannah C M Susorney1,2, Peter B James3, Catherine L Johnson1,2, Nancy L Chabot4, Carolyn M Ernst4, Erwan M Mazarico5, Gregory A Neumann5, Mallory L Kinczyk6.   

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.

Entities:  

Keywords:  Laser Altimeter; Mercury; Polar Deposits

Year:  2019        PMID： 31031414      PMCID： PMC6480407          DOI： 10.1016/j.icarus.2019.01.016

Source DB:  PubMed          Journal:  Icarus        ISSN： 0019-1035            Impact factor:   3.508


  9 in total

1.  Topography of the northern hemisphere of Mercury from MESSENGER laser altimetry.

Authors:  Maria T Zuber; David E Smith; Roger J Phillips; Sean C Solomon; Gregory A Neumann; Steven A Hauck; Stanton J Peale; Olivier S Barnouin; James W Head; Catherine L Johnson; Frank G Lemoine; Erwan Mazarico; Xiaoli Sun; Mark H Torrence; Andrew M Freed; Christian Klimczak; Jean-Luc Margot; Jürgen Oberst; Mark E Perry; Ralph L McNutt; Jeffrey A Balcerski; Nathalie Michel; Matthieu J Talpe; Di Yang
Journal:  Science       Date:  2012-03-21       Impact factor: 47.728

2.  Mercury radar imaging: evidence for polar ice.

Authors:  M A Slade; B J Butler; D O Muhleman
Journal:  Science       Date:  1992-10-23       Impact factor: 47.728

3.  Bright and dark polar deposits on Mercury: evidence for surface volatiles.

Authors:  Gregory A Neumann; John F Cavanaugh; Xiaoli Sun; Erwan M Mazarico; David E Smith; Maria T Zuber; Dandan Mao; David A Paige; Sean C Solomon; Carolyn M Ernst; Olivier S Barnouin
Journal:  Science       Date:  2012-11-29       Impact factor: 47.728

4.  Imaging Mercury's Polar Deposits during MESSENGER's Low-altitude Campaign.

Authors:  Nancy L Chabot; Carolyn M Ernst; David A Paige; Hari Nair; Brett W Denevi; David T Blewett; Scott L Murchie; Ariel N Deutsch; James W Head; Sean C Solomon
Journal:  Geophys Res Lett       Date:  2016-09-17       Impact factor: 4.720

5.  Investigating Mercury's South Polar Deposits: Arecibo Radar Observations and High-resolution Determination of Illumination Conditions.

Authors:  Nancy L Chabot; Evangela E Shread; John K Harmon
Journal:  J Geophys Res Planets       Date:  2018-02-28       Impact factor: 3.755

6.  Comparison of areas in shadow from imaging and altimetry in the north polar region of Mercury and implications for polar ice deposits.

Authors:  Ariel N Deutsch; Nancy L Chabot; Erwan Mazarico; Carolyn M Ernst; James W Head; Gregory A Neumann; Sean C Solomon
Journal:  Icarus       Date:  2016-06-25       Impact factor: 3.508

7.  Radar mapping of mercury: full-disk images and polar anomalies.

Authors:  J K Harmon; M A Slade
Journal:  Science       Date:  1992-10-23       Impact factor: 47.728

8.  Evidence for water ice near Mercury's north pole from MESSENGER Neutron Spectrometer measurements.

Authors:  David J Lawrence; William C Feldman; John O Goldsten; Sylvestre Maurice; Patrick N Peplowski; Brian J Anderson; David Bazell; Ralph L McNutt; Larry R Nittler; Thomas H Prettyman; Douglas J Rodgers; Sean C Solomon; Shoshana Z Weider
Journal:  Science       Date:  2012-11-29       Impact factor: 47.728

9.  Thermal stability of volatiles in the north polar region of Mercury.

Authors:  David A Paige; Matthew A Siegler; John K Harmon; Gregory A Neumann; Erwan M Mazarico; David E Smith; Maria T Zuber; Ellen Harju; Mona L Delitsky; Sean C Solomon
Journal:  Science       Date:  2012-11-29       Impact factor: 47.728
  9 in total

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