Why is "Antidune" trending?
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Trend Analysis
- Ranking position: #
- Date: 2026-03-11 17:06:00
This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
Based on Wikipedia pageviews and search interest, this topic gained significant attention on the selected date.
Trend Insight
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Wikipedia Overview
An antidune is a bedform found in fluvial and other channeled environments. Antidunes occur in supercritical flow, meaning that the Froude number is greater than 1.0 or the flow velocity exceeds the wave velocity; this is also known as upper flow regime. In antidunes, sediment is deposited on the upstream (stoss) side and eroded from the downstream (lee) side, opposite lower flow regime bedforms. As a result, antidunes migrate in an upstream direction, counter to the current flow. Antidunes are called in-phase bedforms, meaning that the water surface elevation mimics the bed elevation; this is due to the supercritical flow regime. Antidune bedforms evolve rapidly, growing in amplitude as they migrate upstream. The resultant wave at the water's surface also increases in amplitude. When that wave becomes unstable, breaks and washes downstream, much of the antidune bedform may be destroyed.
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Search Interest Perspective
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A numerical model predicting lenticular sedimentary structures formed by breaking waves over antidunes - Wiley Online Library
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Particle-resolved simulation of antidunes in free-surface flows - Cambridge University Press & Assessment
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Relating the Flow Processes and Bedforms of Steady-State and Waning Density Currents - Frontiers
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Deposits from giant floods in Gale crater and their implications for the climate of early Mars - Nature
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Three‐dimensional antidunes coexisting with alternate bars - Wiley Online Library
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Restaurant owner holds ‘quiet protest’ for anti-dune advocates - Press of Atlantic City
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Detailed simulation of morphodynamics: 3. Ripples and dunes - Nabi - 2013 - Water Resources Research - AGU Publications
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The supercritical question for pyroclastic dune bedforms: An overview - Douillet - 2021 - Sedimentology - Wiley Online Library
Why This Topic Is Trending
This topic has recently gained attention due to increased public interest. Search activity and Wikipedia pageviews suggest growing global engagement.
Search Interest & Related Topics
Search interest data over the past 12 months indicates that this topic periodically attracts global attention. Sudden spikes often correlate with major news events, public statements, or geopolitical developments.