Mars global digital dune database and initial science results

Rosalyn K. Hayward, Kevin F. Mullins, Lori K. Fenton, Trent M. Hare, Timothy N. Titus, Mary C. Bourke, Anthony Colaprete, Philip Christensen

Research output: Contribution to journalArticle

97 Citations (Scopus)

Abstract

A new Mars Global Digital Dune Database (MGD3) constructed using Thermal Emission Imaging System (THEMIS) infrared (IR) images provides a comprehensive and quantitative view of the geographic distribution of moderate- to large-size dune fields (area >1 kM2) that will help researchers to understand global climatic and sedimentary processes that have shaped the surface of Mars. MGD3 extends from 65°N to 65°S latitude and includes ∼550 dune fields, covering ∼70,000 km2, with an estimated total volume of ∼3,600 km3. This area, when combined with polar dune estimates, suggests moderate- to large-size dune field coverage on Mars may total ∼800,000 km2, ∼6 times less than the total areal estimate of ∼5,000,000 km2 for terrestrial dunes. Where availability and quality of THEMIS visible (VIS) or Mars Orbiter Camera. narrow-angle (MOC NA) images allow, we classify dunes and include dune slipface measurements, which are derived from gross dune morphology and represent the prevailing wind direction at the last time of significant dune modification. For dunes located within craters, the azimuth from crater centroid to dune field centroid (referred to as dune centroid azimuth) is calculated and can provide an accurate method for tracking dune migration within smooth-floored craters. These indicators of wind direction are compared to output from a general circulation model (GCM). Dune centroid azimuth values generally correlate to regional wind patterns. Slipface orientations are less well correlated, suggesting that local topographic effects may play a larger role in dune orientation than regional winds.

Original languageEnglish (US)
Article numberE11007
JournalJournal of Geophysical Research E: Planets
Volume112
Issue number11
DOIs
StatePublished - Nov 20 2007

Fingerprint

dunes
mars
dune
Mars
Imaging systems
dune field
centroids
azimuth
crater
Cameras
craters
Availability
Infrared radiation
wind direction
science
thermal emission
topographic effect
geographic distribution
Mars Global Surveyor
Hot Temperature

ASJC Scopus subject areas

  • Oceanography
  • Astronomy and Astrophysics
  • Atmospheric Science
  • Space and Planetary Science
  • Earth and Planetary Sciences (miscellaneous)
  • Geophysics
  • Geochemistry and Petrology

Cite this

Hayward, R. K., Mullins, K. F., Fenton, L. K., Hare, T. M., Titus, T. N., Bourke, M. C., ... Christensen, P. (2007). Mars global digital dune database and initial science results. Journal of Geophysical Research E: Planets, 112(11), [E11007]. https://doi.org/10.1029/2007JE002943

Mars global digital dune database and initial science results. / Hayward, Rosalyn K.; Mullins, Kevin F.; Fenton, Lori K.; Hare, Trent M.; Titus, Timothy N.; Bourke, Mary C.; Colaprete, Anthony; Christensen, Philip.

In: Journal of Geophysical Research E: Planets, Vol. 112, No. 11, E11007, 20.11.2007.

Research output: Contribution to journalArticle

Hayward, RK, Mullins, KF, Fenton, LK, Hare, TM, Titus, TN, Bourke, MC, Colaprete, A & Christensen, P 2007, 'Mars global digital dune database and initial science results', Journal of Geophysical Research E: Planets, vol. 112, no. 11, E11007. https://doi.org/10.1029/2007JE002943
Hayward RK, Mullins KF, Fenton LK, Hare TM, Titus TN, Bourke MC et al. Mars global digital dune database and initial science results. Journal of Geophysical Research E: Planets. 2007 Nov 20;112(11). E11007. https://doi.org/10.1029/2007JE002943
Hayward, Rosalyn K. ; Mullins, Kevin F. ; Fenton, Lori K. ; Hare, Trent M. ; Titus, Timothy N. ; Bourke, Mary C. ; Colaprete, Anthony ; Christensen, Philip. / Mars global digital dune database and initial science results. In: Journal of Geophysical Research E: Planets. 2007 ; Vol. 112, No. 11.
@article{20161bd3567f410a920d046e4fa6cd46,
title = "Mars global digital dune database and initial science results",
abstract = "A new Mars Global Digital Dune Database (MGD3) constructed using Thermal Emission Imaging System (THEMIS) infrared (IR) images provides a comprehensive and quantitative view of the geographic distribution of moderate- to large-size dune fields (area >1 kM2) that will help researchers to understand global climatic and sedimentary processes that have shaped the surface of Mars. MGD3 extends from 65°N to 65°S latitude and includes ∼550 dune fields, covering ∼70,000 km2, with an estimated total volume of ∼3,600 km3. This area, when combined with polar dune estimates, suggests moderate- to large-size dune field coverage on Mars may total ∼800,000 km2, ∼6 times less than the total areal estimate of ∼5,000,000 km2 for terrestrial dunes. Where availability and quality of THEMIS visible (VIS) or Mars Orbiter Camera. narrow-angle (MOC NA) images allow, we classify dunes and include dune slipface measurements, which are derived from gross dune morphology and represent the prevailing wind direction at the last time of significant dune modification. For dunes located within craters, the azimuth from crater centroid to dune field centroid (referred to as dune centroid azimuth) is calculated and can provide an accurate method for tracking dune migration within smooth-floored craters. These indicators of wind direction are compared to output from a general circulation model (GCM). Dune centroid azimuth values generally correlate to regional wind patterns. Slipface orientations are less well correlated, suggesting that local topographic effects may play a larger role in dune orientation than regional winds.",
author = "Hayward, {Rosalyn K.} and Mullins, {Kevin F.} and Fenton, {Lori K.} and Hare, {Trent M.} and Titus, {Timothy N.} and Bourke, {Mary C.} and Anthony Colaprete and Philip Christensen",
year = "2007",
month = "11",
day = "20",
doi = "10.1029/2007JE002943",
language = "English (US)",
volume = "112",
journal = "Journal of Geophysical Research: Atmospheres",
issn = "2169-897X",
publisher = "Wiley-Blackwell",
number = "11",

}

TY - JOUR

T1 - Mars global digital dune database and initial science results

AU - Hayward, Rosalyn K.

AU - Mullins, Kevin F.

AU - Fenton, Lori K.

AU - Hare, Trent M.

AU - Titus, Timothy N.

AU - Bourke, Mary C.

AU - Colaprete, Anthony

AU - Christensen, Philip

PY - 2007/11/20

Y1 - 2007/11/20

N2 - A new Mars Global Digital Dune Database (MGD3) constructed using Thermal Emission Imaging System (THEMIS) infrared (IR) images provides a comprehensive and quantitative view of the geographic distribution of moderate- to large-size dune fields (area >1 kM2) that will help researchers to understand global climatic and sedimentary processes that have shaped the surface of Mars. MGD3 extends from 65°N to 65°S latitude and includes ∼550 dune fields, covering ∼70,000 km2, with an estimated total volume of ∼3,600 km3. This area, when combined with polar dune estimates, suggests moderate- to large-size dune field coverage on Mars may total ∼800,000 km2, ∼6 times less than the total areal estimate of ∼5,000,000 km2 for terrestrial dunes. Where availability and quality of THEMIS visible (VIS) or Mars Orbiter Camera. narrow-angle (MOC NA) images allow, we classify dunes and include dune slipface measurements, which are derived from gross dune morphology and represent the prevailing wind direction at the last time of significant dune modification. For dunes located within craters, the azimuth from crater centroid to dune field centroid (referred to as dune centroid azimuth) is calculated and can provide an accurate method for tracking dune migration within smooth-floored craters. These indicators of wind direction are compared to output from a general circulation model (GCM). Dune centroid azimuth values generally correlate to regional wind patterns. Slipface orientations are less well correlated, suggesting that local topographic effects may play a larger role in dune orientation than regional winds.

AB - A new Mars Global Digital Dune Database (MGD3) constructed using Thermal Emission Imaging System (THEMIS) infrared (IR) images provides a comprehensive and quantitative view of the geographic distribution of moderate- to large-size dune fields (area >1 kM2) that will help researchers to understand global climatic and sedimentary processes that have shaped the surface of Mars. MGD3 extends from 65°N to 65°S latitude and includes ∼550 dune fields, covering ∼70,000 km2, with an estimated total volume of ∼3,600 km3. This area, when combined with polar dune estimates, suggests moderate- to large-size dune field coverage on Mars may total ∼800,000 km2, ∼6 times less than the total areal estimate of ∼5,000,000 km2 for terrestrial dunes. Where availability and quality of THEMIS visible (VIS) or Mars Orbiter Camera. narrow-angle (MOC NA) images allow, we classify dunes and include dune slipface measurements, which are derived from gross dune morphology and represent the prevailing wind direction at the last time of significant dune modification. For dunes located within craters, the azimuth from crater centroid to dune field centroid (referred to as dune centroid azimuth) is calculated and can provide an accurate method for tracking dune migration within smooth-floored craters. These indicators of wind direction are compared to output from a general circulation model (GCM). Dune centroid azimuth values generally correlate to regional wind patterns. Slipface orientations are less well correlated, suggesting that local topographic effects may play a larger role in dune orientation than regional winds.

UR - http://www.scopus.com/inward/record.url?scp=38149012264&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=38149012264&partnerID=8YFLogxK

U2 - 10.1029/2007JE002943

DO - 10.1029/2007JE002943

M3 - Article

VL - 112

JO - Journal of Geophysical Research: Atmospheres

JF - Journal of Geophysical Research: Atmospheres

SN - 2169-897X

IS - 11

M1 - E11007

ER -