Longitudinal Dune

Science / Geology / Longitudinal Dune: A long, narrow sand dune that has its long dimension oriented parallel to the direction of the wind.

Seif Dune

Science / Geology / Seif Dune: A large sand dune that forms parallel to the direction of a strong wind that blows in a consistent direction throughout the year. Also called a longitudinal dune. MORE

Transverse Dune

Science / Geology / Transverse Dune: A dune that has its axis transverse to the prevailing winds or to a current. The upwind or upcurrent side has a gentle slope, and the downwind side lies at the angle of repose. MORE

Longitudinal Profile

Science / Geology / Longitudinal Profile: A cross section of a stream or valley beginning at the source and continuing to the mouth. These profiles are drawn to illustrate the gradient of the stream. MORE

Longitudinal Dune

Science / Geology / Longitudinal Dune: A long, narrow sand dune that has its long dimension oriented parallel to the direction of the wind. MORE

Dune

Science / Geology / Dune: A mound or ridge of wind-blown sand. Typically found in deserts and inland from a beach. Many dunes are moved by the wind. MORE

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