Subsonic Assessment - Ozone and Nitrogen Oxide Experiment
SONEX was conducted to understand a variety of NOx sources including the current subsonic aircraft fleet in the North Atlantic, with and without convection. To improve the models and our understanding, Photochemistry was collected to determine the impact of subsonic aircraft emissions on Tropospheric NOx and Ozone budgets. The experiment was conducted during October-November 1997 over Bangor, Maine; Sannon, Ireland; and the Azores, Portugal.
SONEX data and documentation is available at: http://www.espo.nasa.gov/sonex/