Progress in Weather Observations Airborne Meteorological Data Reporting Airborne Turbulence Hazard Detection Advanced Satellite Aviation-weather Products Friends/Partners in Aviation Weather Forum October 8, 2003 Paul Stough NASA Langley Research Center

TAMDAR - Tropospheric Airborne Meteorological Data Reporting Objective: Develop means to expand automated airborne in-situ weather reporting for altitudes below 25,000 ft. FY 2003 Accomplishments: Conducted sensor system flight tests on Naval Postgraduate School Twin Otter and University of North Dakota Cessna Citation II Performed wind tunnel tests, CFD flow studies, and humidity chamber tests to refine sensor system design Partnered with Mesaba Airlines for fleet evaluation in Great Lakes Region FY 2004 Plans: Perform flight evaluations on NOAA WP3 and NASA C-206 Perform DO-160 testing and gain approval for Saab 340 installation Install sensors on Mesaba aircraft and conduct fleet evaluation Develop cockpit display

Airborne Turbulence Hazard Detection Objective: Develop en-route turbulence hazard prediction and warning technologies for reducing injuries to passengers and crew FY 2003 Accomplishments: Completed aircraft warning experiment at CAMI Validated Turbulence AutoPIREP algorithms on NASA B-757 Validated radar-based turbulence hazard metric for 8 transport types Implemented several datasets and simulation tools for turbulence technology certification process Evaluated Lidar-based system on NASA DC-8 FY 2004 Plans: Complete Turbulence AutoPIREP experiment with LaRC 757 and Glenn Learjet. Finalize certification process with FAA, implement and deliver all datasets, models, and tools.

ASAP - Advanced Satellite Aviation-weather Products Objective: Develop methods to use advanced satellite atmospheric-sounding and weather-observation capabilities to improve aviation weather products being developed by the FAA Aviation Weather Research Program - feasible products include convection, turbulence, icing, volcanic ash, and winds. FY 2003 Accomplishments: Completed cost/benefits analysis for candidate products Collected data sets during Pacific THORPEX Teamed with FAA Aviation Weather Research Program FY 2004 Plans: Collect data sets during Atlantic THORPEX and AIRS II Perform field evaluation of ASAP In-Flight Icing Algorithms