Demonstrating feasibility of tactical turbulence alerts
Tactical turbulence information is provided by in-cloud turbulence measurements from the NEXRAD Turbulence Detection Algorithm (NTDA), which have been incorporated into the Graphical Turbulence Guidance Nowcast product. The combined product runs at NCAR, providing real-time data fusion of WRF-RAP model, radar, satellite and lightning data along with in-situ turbulence observations and pilot reports to produce a comprehensive, rapid-update, 3-D assessment of turbulence over the CONUS. In preparation for the simulator demonstration, the NCAR system monitors the positions of all aircraft in the National Airspace System via Aircraft Situation Display to Industry data, creating and archiving alerts for aircraft whose trajectories will intersect turbulence in the following few minutes. Alert thresholds are based on the intensity, size and proximity of the turbulence region. Case studies of the tactical turbulence data and alerts will be described, and plans for the simulator demonstration outlined.