The wind vector represents the motion of the airmass over the ground.
Solve for the wind vector.
The back scattered power in each beam from the ocean surface is measured to derive wind vector.
Actually, they continued to give wind vectors after the aircraft had already crashed.
Animation of the crash, indicating wind vectors and synchronized to voice recorder data (description here)
Compact-beam sodars are more accurate in complex terrain where the wind vector can change across the measurement area of the sodar.
By providing a more compact beam angle, these sodars reduce the effect of any change in the wind vector.
Turning the milled head also rotated the "wind bar", through a geared shaft, to the selected angle in order to mechanically represent the wind vector.
Given the uncertainties, the intersection of the flight path and the wind vectors corresponded to an area maybe fifty kilometers on a side.
My personal decisions have nothing to do with atmospheric pressure, force-field mechanics, wind vectors, planetary realignment, or any other aspect of this terraforming project.
