Model calculations of the impact of NO x from air traffic, lightning, and surface emissions, compared with measurements ...

• Main Authors: Meijer, E. W., Van Velthoven, P. F. J., Thompson, Anne M., Pfister, L., Schlager, H., Schulte, P., Kelder, H.
• Format: Text
• Language: English
• Published: AGU 2000
• Subjects: North Atlantic
• Online Access: https://dx.doi.org/10.13016/m2vbbc-j0sk; https://mdsoar.org/handle/11603/34942

The impact of NOx from aircraft emissions, lightning, and surface contributions on atmospheric nitrogen oxides and ozone in the North Atlantic flight corridor has been investigated with the three-dimensional global chemistry transport model TM3 by partitioning the nitrogen oxides and ozone according to source category. The results have been compared with Pollution from Aircraft Emissions in the North Atlantic flight corridor (POLINAT 2) and Subsonic Assessment Ozone and Nitrogen Oxide Experiment (SONEX) airborne measurements in the North Atlantic flight corridor in 1997. Various cases have been investigated: measurements during a stagnant anticyclone and an almost cutoff low, both with expected high aircraft contributions, a southward bound flight with an expected strong flight corridor gradient and lightning contributions in the south, and a transatlantic flight with expected boundary layer pollution near the U.S. coast. The agreement between modeled results and measurements is reasonably good for NO and ...