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Detection of lightning-produced NO in the midlatitude upper troposphere during STREAM 1998

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Lange,  Lutz
Frank Arnold - Atmospheric Trace Gases and Ions, Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Hoor,  Peter
Prof. Konrad Mauersberger, Emeriti, MPI for Nuclear Physics, Max Planck Society;

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Helas,  Günter
Frank Arnold - Atmospheric Trace Gases and Ions, Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Fischer,  Horst
Frank Arnold - Atmospheric Trace Gases and Ions, Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Williams,  Jonathan
Elisa Resconi - Emmy Noether Junior Research Group, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Wong,  Stefanie
Frank Arnold - Atmospheric Trace Gases and Ions, Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Wohlfrom,  Karl-Heinz
Frank Arnold - Atmospheric Trace Gases and Ions, Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Arnold,  Frank
Frank Arnold - Atmospheric Trace Gases and Ions, Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Lelieveld,  Jos
Frank Arnold - Atmospheric Trace Gases and Ions, Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Andreae,  Meinrad O.
Frank Arnold - Atmospheric Trace Gases and Ions, Research Groups, MPI for Nuclear Physics, Max Planck Society;

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Citation

Lange, L., Hoor, P., Helas, G., Fischer, H., Brunner, D., Scheeren, B., et al. (2001). Detection of lightning-produced NO in the midlatitude upper troposphere during STREAM 1998. Journal of Geophysical Research, Atmospheres, 106(D21), 27777-27785.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-8550-4
Abstract
Simultaneous in situ measurements of NO, NOy, HNO3, CO, CO2, O3, and aerosols were performed in the midlatitude upper troposphere (UT) and lower stratosphere during the Stratosphere-Trophosphere Experiment by Aircraft Measurements (STREAM) 1998 summer campaign. The campaign focused on the region around Timmins in the Canadian province of Ontario (79.3°W, 48.2°N), close to the polar jet stream that rapidly transports trace species across the Atlantic Ocean. This paper focuses on the origin of total reactive nitrogen (NOy) in the UT, as our measurements show strong variations, which reflect large local sources. In situ production by lightning, stratospheric downdraft, aircraft emissions, and upward transport of polluted boundary layer air are discussed in two case studies as potential contributors. We use correlations among NO, NOy and CO to distinguish between transport form the boundary layer and in situ formations. Lightning production of NOx is found to be a strong contributor to the budget of NOy during high NOy episodes.