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Barchan - Wikipedia

en.wikipedia.org/wiki/Barchan

A barchan or barkhan dune is a crescent-shaped dune. The term was introduced in 1881 by Russian naturalist Alexander von Middendorf, for crescent-shaped sand dunes in Turkestan and other inland dese...

This part of a sand dune is characterized by a pronounced slope

www.answers.com/Q/This_part_of_a_sand_dune_is_characterized_by_a_pronounced_slope

The upwind direction of a sand dune has a gentle slope. A steep slope is on the downwind side. The pronounced slope of a sand dune is called a slip face.

What part of a sand dune is characterized by a gentle slope

www.answers.com/Q/What_part_of_a_sand_dune_is_characterized_by_a_gentle_slope

The upwind direction of a sand dune has a gentle slope. A steep slope is on the downwind side. The pronounced slope of a sand dune is called a slip face.

This part of a sand dune faces the wind - Answers.com

www.answers.com/Q/This_part_of_a_sand_dune_faces_the_wind

What Part of a sand dune is characterized by a pronounced slope? The upwind ... When wind creates a sand dune the sheltered side of the dunes? Is more ...

Sand Dunes | SaharaSafaris.org

www.saharasafaris.org/sand-dunes

Various name for the fields of sand dunes in the Sahara. 3.1. ... The wind then drops any sand it was carrying at this leeward side of the obstacle. ... Watch how airborne sand grains fall and cascade down the steep lee slope in tiny avalanches. ... The forms remain a plenty and very different, but could be characterized by few .....

17 Types of Aeolian Sand Dunes and Their Formation

www.boker.org.il/meida/negev/desert_biking/bagnold/Types__of_Aeolian_sand_dunes.pdf

[5] and arid areas [6], more than 99% of all sand dunes are located in deserts. Less .... slip-faces, pronounced crests and a much higher aspect ratio (1.3 > h/L > 0.3). Despite the .... slope toward the crest and a decrease on the lee side [37,38, 39,40]. Sand ..... Such a flow over the concave parabolic dune is characterized by .

Calculation of dune morphology - Tjerry - 2005 - Journal of ...

onlinelibrary.wiley.com/doi/10.1029/2004JF000171/full

Nov 30, 2005 ... In nature, solitary sand dunes are also observed, [e.g., Termes, 1984; Engelund, .... The convex curvature along the stoss part of the dune gives ... Downstream of the dune crest, the flow separates and the slope of the sand wave is here ..... rate and make the peak in sediment-transport more pronounced.

Distinctions and Uses of Stratification Types in the Interpretation of ...

www.geo.arizona.edu/geo5xx/geos544/pdfs/kocurek&dott81.pdf

pretations of parts of the Entrada (Jurassic), Navajo (Triassic-Jurassic), and Galesville (Cambrian) Formations, ... is the result of transport of sand on dunes by a ..... translatent strata are characterized by thin, uniform, inversely graded laminae with few visible foresets. .... deposits show a pronounced along-slope migra-.

The Ecological Relations of the Vegetation on the Sand Dunes of ...

www.jstor.org/stable/2465177

PART I.- GEOGRAPHICAL RELATIONS OF THE DUNE. FLORAS. ... that the previous ecological studies of sand-dune floras have been carried on ..... Nearly all of the dune societies are characterized by a high degree of .... sand is also slight, nor is there such pronounced capillarity as is ... The direction of slope is a mat-.

Sand Dune Ridge Alignment Effects on Surface BRF over the Libya ...

www.ncbi.nlm.nih.gov/pmc/articles/PMC4367368/

Feb 3, 2015 ... The effects of sand dune spatial organization on the surface ... The topography is characterized with the 30 m resolution ASTER digital elevation model. .... is more pronounced for high Sun zenith angles as discussed in Section 6. ... Slope angle relative frequency distribution over the four ROIs: 10 km × 10 ...