In situ measurement of dust devil dynamics: Toward a strategy for Mars

David M. Tratt, Michael H. Hecht, David C. Catling, Eric C. Samulon, Peter H. Smith

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

An intensive 3-day dust devil investigation was conducted near Eloy, Arizona, during June of 2001. The goal was to evaluate strategies for observing dust devils on Mars by studying the physics of terrestrial dust devils. As part of this campaign, an instrumented vehicle outfitted with wind, temperature, and pressure sensors was used to intercept and penetrate numerous dust devils. Defined analysis of meteorological fields was only possible with knowledge of the whole body motion of a dust devil. One such data set analyzed revealed a dust devil structure characterized by a tangential wind proportional to radius, r, inside the warm, low-pressure core of a dust devil, and proportional to r-1/2 outside the core. We discuss the implications for optimum measurement strategies.

Original languageEnglish (US)
Pages (from-to)2-1 - 2-7
JournalJournal of Geophysical Research E: Planets
Volume108
Issue number11
DOIs
StatePublished - Nov 25 2003

Keywords

  • Dust devils
  • In situ measurements
  • Rankine vortex model
  • Vortex dynamics
  • Vortex structure

ASJC Scopus subject areas

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

Fingerprint Dive into the research topics of 'In situ measurement of dust devil dynamics: Toward a strategy for Mars'. Together they form a unique fingerprint.

Cite this