What 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 ...
large part, the controversy was justified and has ... is the result of transport of
sand on dunes by a ..... translatent strata are characterized by thin, uniform,
inversely graded laminae with few .... deposits show a pronounced along-slope
As will be shown in another place, even the sand dune floras are ... again has a
natural twofold division, one part treating of gross ... Nearly all of the dune
societies are characterized by a high__ .... sand is also slight, nor is there such
pronounced capillarity as is .... and carried down the steep leeward slope by
Keywords: sand; dunes; saltation; sediment transport; eolian features; wind
transport. 1. ... field-based, have assessed the effect of slope on the initiation of
particle .... Saltation is characterized mostly by grains in the ... Samples from
various parts of the climbing dune .... the deficiency of the pronounced coarse
mode in the.
 and arid areas , more than 99% of all sand dunes are located in deserts.
Less than 1% ... RDP/DP is low, wind energy is distributed on more than one
slope of the dune and the .... slip-faces, pronounced crests and a much higher
aspect ratio (1.3 > h/L > 0.3). .... Consequently, sand will be eroded from the
upper part of.
Feb 3, 2015 ... The effects of sand dune spatial organization on the surface ... The topography is
characterized with the 30 m resolution ASTER digital ... effect on the surface
reflectance field, which is more pronounced for high Sun zenith angles. .... Slope
angle relative frequency distribution over the four ROIs: 10 km × 10 ...
Various name for the fields of sand dunes in the Sahara ... Watch how airborne
sand grains fall and cascade down the steep lee slope in ... The forms remain a
plenty and very different, but could be characterized by few ... Seif; Transverse;
Megaseif; Sand-sheet; Stringer; Sand-sea; Helaly (barchan, pronounced: bar-
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
Feb 1, 2008 ... However, the stability of the dune field depends on the sand flux balance of a
single ... A dune is characterized by a single scalar quantity, e.g. its width w, and
its position ... dune. windward slope. ..... We observe very pronounced ... as
obtained after averaging over all dunes in the central part of the field and.