Aerodynamic Roughness Height of Gravel-covered Plains in the Puna of Argentina

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 01 Jun 2023 Argentina Publisher:American Astronomical SocietyJournal:The Planetary Science Journal, volume 4, page 102 (eissn: 2632-3338,

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Authors: James R. Zimbelman; Mauro G. Spagnuolo; Shanaka L. de Silva;

doi: 10.3847/psj/accdd9 , 10.5281/zenodo.7574371 , 10.60692/f8270-s6e63 , 10.60692/avk9w-pr238 , 10.5281/zenodo.7574372

handle: 11336/213163

Aerodynamic Roughness Height of Gravel-covered Plains in the Puna of Argentina

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Abstract

Abstract Plains covered by gravel-dominated desert pavement in the Puna of Argentina have an aerodynamic roughness height (or length) z 0 of ∼1 cm, likely representing a skimming flow regime above the closely spaced gravel particles. Aerodynamic roughness height locally may transition from that of skimming flow over the gravels to a z 0 that includes the effects of obstacles considerably larger than those of the gravel particles alone. Among large (>60 cm tall) megaripples, z 0 is elevated beyond that of the gravels alone to values of 2–4 cm. These results represent an analog for an improved understanding of the aerodynamics of gravel-dominated desert pavement and megaripples documented by multiple rovers on Mars.

Country

Argentina

Related Organizations

National Air and Space Museum
United States
National Scientific and Technical Research Council
Argentina
Oregon State University
United States
Institute of Astronomy and Space Physics
Argentina
Smithsonian Institution Archives
United States

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Keywords

Composite material, Atmospheric Science, Astronomy, Surface finish, QB1-991, Surface Composition, Epistemology, SURFACE PROCESSES, Mechanics, Aerodynamics, Mars Exploration Program, https://purl.org/becyt/ford/1.5, https://purl.org/becyt/ford/1.3, https://purl.org/becyt/ford/1, Earth-Surface Processes, Surface processes, Aeolian Geomorphology and Wind Erosion Dynamics, Physics, EARTH (PLANET), Astronomy and Astrophysics, Geology, Geomorphology, Hydrology (agriculture), wind tower, FOS: Earth and related environmental sciences, Desert (philosophy), Materials science, FOS: Philosophy, ethics and religion, Earth and Planetary Sciences, Geotechnical engineering, Philosophy, Climate Change and Paleoclimatology, Physics and Astronomy, GEOLOGICAL PROCESSES, Earth (planet), Physical Sciences, anemometer, Exploration and Study of Mars, Geological processes, Flow (mathematics)

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