. "Speed is the magnitude of velocity. Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name upward_air_velocity.) The wind speed is the magnitude of the wind velocity. Wind speed shear is the derivative of wind speed with respect to height."@en . "2006-09-26 18:12:43.0" . . . . . "1" . . "SDN:P07::CFSN0040" . . "1" . . "SDN:P07::CFSN0040" . . "false" . . . "wind_speed_shear"@en . "" . "2006-09-26 18:12:43.0" . "SDN:P07::CFSN0040" . "accepted"@en .