Use of Aircraft-Based Data to Evaluate Factors in Pilot Decision Making in Enroute Airspace
The 17 July flight missions were conducted in and around embedded convection while the aircraft was operating in primarily Instrument Meteorological Conditions (IMC). Flight altitudes were restricted to 34,000 ft. or less. The 14 August flight, by contrast, was conducted primarily in Visually Meteorological Conditions (VMC), and a reduced instrumentation payload made possible a flight envelope that included altitudes up to 40,000 ft. The 14 August flight was able to probe areas of convection at multiple flight levels, providing data from different vertical strata of the same storm cells. The nature of the convection encountered during the fourth flight was also significantly different, consisting primarily of isolated or multi-cellular thunderstorms, rather than the more organized, mesoscale systems observed on 17 July.
An analysis of the differences discovered during the fourth flight will be presented comparing and contrasting data from the 17 July mission and the 14 August mission. Data fields from the CIT algorithm will be compared to WAF, onboard weather radar, and aircraft accelerometer data to determine if the CIT fields can be used to improve CWAM performance.
1. DeLaura, Rich, Brad Crowe, Richard Ferris, John F. Love, William N. Chan : “Comparing Convective Weather Avoidance Models and Aircraft-based data”, 89th AMS Annual Meeting Conference on Aviation, Range and Aerospace Meteorology Special Symposium on weather-Air Traffic, American Meteorological Society, Phoenix, AZ, Jan., 2009.