Results 1 to 10 of about 32,835 (209)
Microbial Characterization of Qatari Barchan Sand Dunes. [PDF]
PLoS ONE, 2016 This study represents the first characterization of sand microbiota in migrating barchan sand dunes. Bacterial communities were studied through direct counts and cultivation, as well as 16S rRNA gene and metagenomic sequence analysis to gain an ...
Sara Abdul Majid +8 more
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Barchan Dunes Cruising Dune-Size Obstacles
Geophysical Research Letters, 2023 We investigate the behavior of subaqueous barchans reaching dune‐size obstacles by carrying out experiments where we varied the obstacle shape and size, the flow strength, and the grains' properties.
Willian R Assis +2 more
exaly +4 more sources
A distinct ripple-formation regime on Mars revealed by the morphometrics of barchan dunes [PDF]
Nature Communications, 2022 Dust storms on Mars drive water escape to space. Here, the authors show the impact Martian dust storms have on the abundance of atmospheric hydrogen and oxygen, and how this helps to overall oxidize the Martian atmosphere.
Lior Rubanenko +4 more
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 The morphology of isolated barchan dunes on Mars and Earth may shed light on the dynamic conditions that form them, their migration direction and the physical properties of the sediments composing them.
Mathieu G.A. Lapotre, Lior Rubanenko
exaly +3 more sources
Dataset of turbulent flow over interacting barchan dunes [PDF]
Data in BriefBarchans are dunes commonly found in dune fields on Earth, Mars and other celestial bodies, where they can interact with each other. This article concerns experimental data for the flow over subaqueous barchans that are either isolated or interacting ...
Jimmy G. Alvarez +2 more
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The distribution of Earth’s wind-blown sand dunes [PDF]
Nature CommunicationsSand dunes develop when there is a source of sediment and adequate wind. Dune morphology and occurrence can then be used to infer sediment source distribution and formative climate conditions.
Andrew Gunn
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Detection and tracking of barchan dunes using artificial intelligence [PDF]
Scientific ReportsBarchans are crescent-shape dunes ubiquitous on Earth and other celestial bodies, which are organized in barchan fields where they interact with each other.
Esteban A. Cúñez, Erick M. Franklin
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Quantitative Study on Morphological Characteristics of Barchan Dunes in Yamarak Desert, China
Frontiers in Earth Science, 2022 Although scholars have conducted many studies on barchan dunes in deserts and sandy areas around the world, few studies have been conducted on the morphological characteristics and changes in movement patterns of barchan dunes in the Yamarak Desert ...
Jia Guang-Pu +4 more
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Vegetation covers change and its impact on Barchan Dune morphology in Parangtritis Coast, Indonesia [PDF]
E3S Web of Conferences, 2020 Barchan dune is a peculiar type of dune that forms in wind corridors at the Inner Zone of Parangtritis Sand Dune. Their existence is increasingly threatened by land-use changes, especially vegetation coverage.
Laksono Agung +4 more
doaj +1 more source
Acta Universitatis Carolinae Geographica, 2022 Morphology of barchan dunes plays a key role in the rate of movement of barchan dunes and accordingly, the areas that are in the path of barchan dunes can be identified.
Mehdi Feyzolahpour +2 more
doaj +1 more source