- term in 1881,
working from the
occurrence of
barchans in
Turkestan and in
other inland desert regions.
Barchans "face" the wind,
appearing convex, and are...
- The
Barchans is a
group of
small snow-capped
islands marking the west end of the
Argentine Islands, in the
Wilhelm Archipelago.
Charted by the British...
-
unidirectional wind. In the
sheltered troughs between highly developed seif dunes,
barchans may be formed,
because the wind is
constrained to be
unidirectional by...
-
areas of
bedrock or reg.
Barchans migrate up to 30
meters (98 ft) per year, with the
taller dunes migrating faster.
Barchans first form when some minor...
-
drift like the sand
grains in
barchan dunes, and the
resulting drifting snow
shapes are also po****rly
referred to as
barchans.
Inuit of
Canada call them...
-
transverse dunes,
simple barchan dunes, mega-
barchans, and
complex barchanoid ridges. All of
these dune
types occur on
Earth too.
Barchans are isolated, crescent-shaped...
-
beach protected by a
ledge of
exposed beach rock. Dunes,
including some
barchans, are
migrating across the
southern part of the
isthmus towards the Gulf...
- up to 120
metres (390 ft) high.
Certain crescent-shaped dunes,
known as
barchans, are
actually mobile; the wind can push
these dunes as much as 20 to 30...
-
highlands (Sultanuizdag, Bukantau). Most of the area is
covered with
dunes (
barchans); in the
northwest large areas are
covered with
takirs (clay coatings);...
- to a loud low-pitch rumble. It
emanates from crescent-shaped dunes, or
barchans. The
sound emission accompanies a
slumping or
avalanching movement of sand...
