Predicting rooftop boundary-layer wind shears and building wake vortices before aircraft arrival.
Buildings create severe mechanical turbulence and downdrafts that exceed eVTOL roll authority. Continuous scanning Doppler lidar systems measure 3D wind velocity vectors up to 2 kilometers along the approach corridor, generating real-time turbulence heatmaps.
When a strong lee-wave or thermal plume is detected, the vertiport system shifts the final approach path by up to 15 degrees into clean air, preventing uncomfortable passenger turbulence and dangerous motor over-current spikes.