Abstract
In situ aircraft measurements of O{sub 3}, CO, HNO{sub 3}, and aerosol particles are presented, performed over the North Sea region in the summer lower stratosphere during the STREAM-II campaign (Stratosphere Troposphere Experiments by Aircraft Measurements). Elevated CO mixing ratios are attributed to mixing of polluted tropospheric air into the lowermost extra-tropical stratosphere. Model calculations illustrate that the O{sub 3} production efficiency of NO{sub x} is smaller than previously assumed, under conditions with relatively high HNO{sub 3} mixing ratios, as observed during STREAM-II. The model simulations further suggest a relatively high O{sub 3} production efficiency from CO oxidation, as a result of the relatively high ambient HNO{sub 3} and NO{sub x} concentrations, implying that upward transport of CO rich air enhances O{sub 3} production in the lowermost stratosphere. (author) 13 refs.
Bregman, A;
Lelieveld, J;
Scheeren, H A;
[1]
Arnold, F;
Buerger, V;
Schneider, J;
[2]
Fischer, H;
Waibel, A;
[3]
Siegmund, P C;
Wauben, W M.F.;
[4]
Stroem, J
[5]
- Institute for Marine and Atmospheric Sciences, Utrecht (Netherlands)
- Max-Planck-Inst. for Nuclear Physics, Heidelberg (Germany)
- Max-Planck-Inst. fuer Chemie, Mainz (Germany)
- Koninklijk Nederlands Meteorologisch Inst., De Bilt (Netherlands)
- Stockholm Univ. (Sweden). Dept. of Meteorology
Citation Formats
Bregman, A, Lelieveld, J, Scheeren, H A, Arnold, F, Buerger, V, Schneider, J, Fischer, H, Waibel, A, Siegmund, P C, Wauben, W M.F., and Stroem, J.
In situ trace gas and particle measurements in the summer lower stratosphere during STREAM II. Implications for O{sub 3} production.
France: N. p.,
1997.
Web.
Bregman, A, Lelieveld, J, Scheeren, H A, Arnold, F, Buerger, V, Schneider, J, Fischer, H, Waibel, A, Siegmund, P C, Wauben, W M.F., & Stroem, J.
In situ trace gas and particle measurements in the summer lower stratosphere during STREAM II. Implications for O{sub 3} production.
France.
Bregman, A, Lelieveld, J, Scheeren, H A, Arnold, F, Buerger, V, Schneider, J, Fischer, H, Waibel, A, Siegmund, P C, Wauben, W M.F., and Stroem, J.
1997.
"In situ trace gas and particle measurements in the summer lower stratosphere during STREAM II. Implications for O{sub 3} production."
France.
@misc{etde_623620,
title = {In situ trace gas and particle measurements in the summer lower stratosphere during STREAM II. Implications for O{sub 3} production}
author = {Bregman, A, Lelieveld, J, Scheeren, H A, Arnold, F, Buerger, V, Schneider, J, Fischer, H, Waibel, A, Siegmund, P C, Wauben, W M.F., and Stroem, J}
abstractNote = {In situ aircraft measurements of O{sub 3}, CO, HNO{sub 3}, and aerosol particles are presented, performed over the North Sea region in the summer lower stratosphere during the STREAM-II campaign (Stratosphere Troposphere Experiments by Aircraft Measurements). Elevated CO mixing ratios are attributed to mixing of polluted tropospheric air into the lowermost extra-tropical stratosphere. Model calculations illustrate that the O{sub 3} production efficiency of NO{sub x} is smaller than previously assumed, under conditions with relatively high HNO{sub 3} mixing ratios, as observed during STREAM-II. The model simulations further suggest a relatively high O{sub 3} production efficiency from CO oxidation, as a result of the relatively high ambient HNO{sub 3} and NO{sub x} concentrations, implying that upward transport of CO rich air enhances O{sub 3} production in the lowermost stratosphere. (author) 13 refs.}
place = {France}
year = {1997}
month = {Dec}
}
title = {In situ trace gas and particle measurements in the summer lower stratosphere during STREAM II. Implications for O{sub 3} production}
author = {Bregman, A, Lelieveld, J, Scheeren, H A, Arnold, F, Buerger, V, Schneider, J, Fischer, H, Waibel, A, Siegmund, P C, Wauben, W M.F., and Stroem, J}
abstractNote = {In situ aircraft measurements of O{sub 3}, CO, HNO{sub 3}, and aerosol particles are presented, performed over the North Sea region in the summer lower stratosphere during the STREAM-II campaign (Stratosphere Troposphere Experiments by Aircraft Measurements). Elevated CO mixing ratios are attributed to mixing of polluted tropospheric air into the lowermost extra-tropical stratosphere. Model calculations illustrate that the O{sub 3} production efficiency of NO{sub x} is smaller than previously assumed, under conditions with relatively high HNO{sub 3} mixing ratios, as observed during STREAM-II. The model simulations further suggest a relatively high O{sub 3} production efficiency from CO oxidation, as a result of the relatively high ambient HNO{sub 3} and NO{sub x} concentrations, implying that upward transport of CO rich air enhances O{sub 3} production in the lowermost stratosphere. (author) 13 refs.}
place = {France}
year = {1997}
month = {Dec}
}