Molas 3D Doppler Scanning Wind LiDAR Australia

Wind shear is an atmospheric phenomenon that is a sudden change in wind speed in the horizontal and vertical directions. Wind shear, especially low-altitude wind shear, is a major factor in many aviation accidents, particularly those involving aircraft. Until recent decades, little was known about its effect on aviation safety, but recent advances in LiDAR technology have helped to improve our understanding of the effects of wind shear. Today, onboard LiDAR is often used to monitor the wind in flight, while the ground-based doppler 3D scanning wind LiDAR can detect changes in wind speed near the airport. 

Wind shear is extremely harmful to aviation flight, especially during takeoff and landing, due to the low flight speed, wind shear can have a great effect on the airspeed of the aircraft, resulting in sudden changes in the aircraft’s attitude and altitude, sometimes with disastrous results at low altitudes. In 1985, a plane crashed at Dallas-Fox Airport in the United States, killed 137 people. Since then, wind shear has been studied as an international topic. According to Coleman, director of the National Center for Atmospheric Research in Boulder, after 1985, all aircraft in the United States have been equipped with wind shear detectors, and in Canada in the 1990s.