Aeolian processes in Proctor Crater on Mars: Mesoscale modeling of dune-forming winds
نویسندگان
چکیده
منابع مشابه
Dune-Yardang Interactions in Becquerel Crater, Mars.
Isolated landscapes largely shaped by aeolian processes can occur on Earth, while the majority of Mars' recent history has been dominated by wind-driven activity. Resultantly, Martian landscapes often exhibit large-scale aeolian features, including yardang landforms carved from sedimentary-layered deposits. High-resolution orbital monitoring has revealed that persistent bedform activity is occu...
متن کاملThe dune effect on sand-transporting winds on Mars
Wind on Mars is a significant agent of contemporary surface change, yet the absence of in situ meteorological data hampers the understanding of surface-atmospheric interactions. Airflow models at length scales relevant to landform size now enable examination of conditions that might activate even small-scale bedforms (ripples) under certain contemporary wind regimes. Ripples have the potential ...
متن کاملHigh albedo dune features suggest past dune migration and possible geochemical cementation of aeolian sediments on Mars
0019-1035/$ see front matter 2011 Elsevier Inc. A doi:10.1016/j.icarus.2011.01.005 ⇑ Corresponding author. Fax: +33 4 72 44 85 93. E-mail address: [email protected] (E. Ga High albedo features are identified in association with barchan dunes in an equatorial inter-crater dune field on Mars using images from the MRO mission. This paper describes the morphometric properties of these fea...
متن کاملImpact Crater and Basin Control of Igneous Processes on Mars
Numerous martian impact craters have been heavily modified by processes restricted to the crater interior. A common expression of this modification is the presence of extensive fractures arranged in a concentric plan and typically forming moats that engulf the old crater wall. Although similar styles of modification occur on the moon, martian floor-fractured craters display a greater diversity ...
متن کاملModeling the Effect of Obliquity on Mars Elliptical Crater Orientations
Introduction: Obliquity is a strong control on post-Noachian Martian climate [1]. However, Martian obliquity is chaotic and dynamical models produce a wide range of instantaneous and long-term average values [2]. Here, we model the effect of Mars mean obliquity on the distribution of fresh elliptic crater orientations. To achieve this we used an N-body simulation to estimate the time-averaged d...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research
سال: 2005
ISSN: 0148-0227
DOI: 10.1029/2004je002309