Mars global digital dune database (MGD3)—Composition, stability, and thermal inertia

Open-File Report 2018-1164
By: , and 

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Abstract

The Mars Global Digital Dune Database (MGD3) is an online repository that has catalogued dune fields larger than 1 km2 located between latitudes 90° N. and 90° S. The work presented here expands upon previous MGD3 open-file reports, with a new emphasis upon characterizing dune fields through composition, stability, and thermal inertia. Included in this latest addition is a detailed compositional analysis and the associated observational data from Mars Global Surveyor (MGS) Thermal Emission Spectrometer (TES) for dune fields 300 km2 or larger; a near-global dune stability assessment; Mars Odyssey (MO1) Thermal Emission Imaging System (THEMIS) apparent thermal inertia values; and vertical near-surface thermophysical heterogeneities determined by fitting a two-layer thermal model to observed temperatures. These additional datasets are divided into two workbooks: equatorial and south polar regions. A detailed description for the layout of these workbooks can be found in the corresponding metadata document. The continuing goal of the MGD3 is to provide a reliable and multifaceted repository of data for Mars’ dunes, with the intention that such data be easily accessible and useful to future research.

Suggested Citation

Gullikson, A.L., Hayward, R.K., Titus, T.N., Charles, H., Fenton, L.K., Hoover, R., and Putzig, N.E., 2018, Mars global digital dune database (MGD3)—Composition, stability, and thermal inertia: U.S. Geological Survey Open-File Report 2018–1164, 17 p., https://doi.org/10.3133/ofr20181164.

ISSN: 2331-1258 (online)

Table of Contents

  • Acknowledgments
  • Abstract
  • Introduction
  • Database Organization and Terminology
  • MGD3 Data Processing and Methodology
  • Results
  • Summary
  • References Cited
  • Appendix

Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Mars global digital dune database (MGD3)—Composition, stability, and thermal inertia
Series title Open-File Report
Series number 2018-1164
DOI 10.3133/ofr20181164
Year Published 2018
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Astrogeology Science Center
Description Report: vi, 17 p.; Appendix 1; Dune Database
Online Only (Y/N) Y
Additional Online Files (Y/N) Y