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Related Experiment Videos

Dust devils on Mars.

P Thomas, P J Gierasch

    Science (New York, N.Y.)
    |October 11, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Columnar clouds on Mars, identified in Viking Orbiter images, are confirmed as dust devils. This provides evidence for Martian dust devils and a specific mechanism of dust entrainment.

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    Area of Science:

    • Planetary Science
    • Atmospheric Science on Mars

    Background:

    • Martian dust devils were predicted but not directly observed.
    • Understanding dust entrainment is crucial for Martian atmospheric studies.

    Purpose of the Study:

    • To identify and confirm the existence of dust devils on Mars.
    • To provide evidence for a specific dust entrainment mechanism.

    Main Methods:

    • Analysis of Viking Orbiter images.
    • Identification of columnar, cone-shaped, and funnel-shaped cloud structures.

    Main Results:

    • Observed clouds ranging from 1 to 6 kilometers in height.
    • Interpretation of these clouds as Martian dust devils.

    Conclusions:

    • Direct evidence for dust devils on Mars has been found.
    • These observations support theories of dust devils playing a role in Martian dust transport.