"September is watching videos of oil rigs in storms
accessing toilets with UV torches
reacting to friends with tents under palm trees
Wind shear refers to the variation of wind velocity over either horizontal or vertical distances. Wind shear can have a pronounced effect upon sound propagation in the lower atmosphere, where waves can be "bent" by refraction phenomenon. The audibility of sounds from distant sources, such as thunder or gunshots, is very dependent on the amount of shear.
(...) low-level wind shear can cause a large bending moment in the shaft of a two-bladed turbine when the blades are vertical.The reduced wind shear over water means shorter and less expensive wind turbine towers can be used in shallow seas."
