parabolic dune

parabolic dune

[¦par·ə¦bäl·ik ′dün]
(geology)
A long, scoop-shaped sand dune having a ground plan approximating the form of a parabola, with the horns pointing windward (upwind). Also known as blowout dune.
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References in periodicals archive ?
However, paleosols were also mapped in the interior of one large parabolic dune (Figures 3 and 5c).
Green Mountain Beach Dune is a migrating parabolic dune, 400 m long and over 30 m high, 9 km southwest of Holland, Michigan.
Pattern of Sand Transport and Deposition in an Actively Migrating Parabolic Dune Southwest of Holland, Michigan.
Hoffmaster State Park: a foredune, a 10-meter high blowout dune, and a 60-meter high parabolic dune.
Rates of parabolic dune migration in this area are not currently known, but are believed to be comparable to dune migration rates at Aberffraw, Anglesey, North Wales, ranging from 0-3.
The result looks like a boomerang and is called a parabolic dune - the final growth stage of White Sands' dunes.
The western edge abuts against a large parabolic dune.
The following sections describe the geomorphic expression of these lake level changes along the coasts of southern Lake Superior and northern Lake Michigan and parabolic dune distributions along the coast of southern Lake Michigan.
Lakeshore erosion along eastern Lake Michigan has exposed a series of buried soils in the massive (up to 45 m high) parabolic dunes at Van Buren State Park, Michigan.
A quantitative analysis of the near-surface wind flow pattern over coastal parabolic dunes.
Not all arid regions of Earth have been surveyed for dune types, so parabolic dunes might be out there in grass- and shrub-bare areas.