High-Resolution Regional Digital Elevation Models and Derived Products from MESSENGER MDIS Images

Madeleine R. Manheim, Megan R. Henriksen, Mark S. Robinson, Hannah R. Kerner, Bradley A. Karas, Kris J. Becker, Matthew Chojnacki, Sarah S. Sutton, David T. Blewett

Research output: Contribution to journalArticlepeer-review

Abstract

The Mercury Dual Imaging System (MDIS) on the Mercury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft has provided global images of Mercury’s surface. A subset of off-nadir observations acquired at different times resulted in near-global stereo coverage and enabled the creation of local area digital elevation models (DEMs). We derived fifty-seven DEMs covering nine sites of scientific interest and tied each to a geodetic reference derived from Mercury Laser Altimeter (MLA) profiles. DEMs created as part of this study have pixel scales ranging from 78 m/px to 500 m/px, and have vertical precisions less than the DEM pixel scale. These DEMs allow detailed characterizations of key Mercurian features. We present a preliminary examination of small features called “hollows” in three DEM sites. Depth measurements from the new DEMs are consistent with previous shadow and stereo measurements.

Original languageEnglish (US)
Article number3564
JournalRemote Sensing
Volume14
Issue number15
DOIs
StatePublished - Aug 2022

Keywords

  • digital elevation models
  • high resolution
  • hollows
  • MDIS
  • Mercury
  • MESSENGER
  • stereophotogrammetry

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

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