Upwind

Science / Weather / Upwind: The direction from which the wind is blowing. Also the windward side of an object. The opposite of the downwind or leeward side.

Upwind Turn

Technology / Aviation / Upwind Turn: Long a point of contest among pilots, there is in reality no such thing as far as the airplane is concerned. Proponents claim that airplanes lose air speed when turning upwind, while opponents (and th MORE

Windward

Science / Weather / Windward: The direction from which the wind is blowing. Also the upwind side of an object. The opposite of the downwind or leeward side. MORE

Barchan

Science / Geology / Barchan: A sand dune that is crescent-shaped in map view. Barchan dunes form in areas of limited sand supply. They move across the desert floor with their gently sloping convex sides facing upwind and their st 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

Windbreak

Business / Agriculture / Windbreak: A living barrier that usually includes several rows of trees, and perhaps shrubs, located upwind of a farm, field, feedlot or other area and intended to reduce wind velocities. Windbreaks, also called MORE

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