Influence of springtime weather systems on vertical ozone distributions over three North American sites
The Atmosphere/Ocean Chemistry Experiment (AEROCE) '96 Springtime Intensive was designed to quantify major atmospheric chemical species transported from the United States east coast to the North Atlantic Ocean. During the study ozonesondes were launched almost every day between March 22 and May...
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ftunivrhodeislan:oai:digitalcommons.uri.edu:gsofacpubs-2880 2024-02-04T10:02:46+01:00 Influence of springtime weather systems on vertical ozone distributions over three North American sites Cooper, O. R. Moody, J. L. Davenport, J. C. Oltmans, S. J. Johnson, B. J. Chen, X. Shepson, P. B. Merrill, J. T. 1998-09-20T07:00:00Z https://digitalcommons.uri.edu/gsofacpubs/1911 https://doi.org/10.1029/98JD01801 unknown DigitalCommons@URI https://digitalcommons.uri.edu/gsofacpubs/1911 doi:10.1029/98JD01801 https://doi.org/10.1029/98JD01801 Graduate School of Oceanography Faculty Publications text 1998 ftunivrhodeislan https://doi.org/10.1029/98JD01801 2024-01-08T19:09:55Z The Atmosphere/Ocean Chemistry Experiment (AEROCE) '96 Springtime Intensive was designed to quantify major atmospheric chemical species transported from the United States east coast to the North Atlantic Ocean. During the study ozonesondes were launched almost every day between March 22 and May 3, 1996, from Charlottesville, Virginia; Purdue University, Indiana; and Bermuda. Whenever possible, the Charlottesville sondes were timed to fly behind passing cold fronts into midtropospheric to upper tropospheric bands of dry air. The dry air was hypothesized to contain ozone of stratospheric origin and was detected with color-enhanced satellite water vapor imagery. Soundings were placed in three categories: sondes launched ahead of an approaching cold front, sondes launched behind a passing cold front, and sondes launched into cutoff lows. This stratification explained much of the vertical ozone variation at each site. Tropospheric mean ozone increased with height at all three sites under postfrontal conditions, with relatively little increase with height under prefrontal conditions. Backward trajectories from Charlottesville indicated that the postfrontal air masses originated at high elevations to the northwest, while prefrontal air masses came from relatively lower elevations to the southwest. Transport also explained the lower tropospheric ozone differences between Charlottesville and Bermuda. The enhanced ozone observed in the upper troposphere over Charlottesville compared with the other sites may be linked to upwind conditions more favorable for tropopause folding. However, we believe that selective launching based on the operational use of satellite water vapor imagery allowed us to sample the full range of tropospheric ozone over Charlottesville. Copyright 1998 by the American Geophysical Union. Text North Atlantic University of Rhode Island: DigitalCommons@URI Journal of Geophysical Research: Atmospheres 103 D17 22001 22013 |
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University of Rhode Island: DigitalCommons@URI |
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ftunivrhodeislan |
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description |
The Atmosphere/Ocean Chemistry Experiment (AEROCE) '96 Springtime Intensive was designed to quantify major atmospheric chemical species transported from the United States east coast to the North Atlantic Ocean. During the study ozonesondes were launched almost every day between March 22 and May 3, 1996, from Charlottesville, Virginia; Purdue University, Indiana; and Bermuda. Whenever possible, the Charlottesville sondes were timed to fly behind passing cold fronts into midtropospheric to upper tropospheric bands of dry air. The dry air was hypothesized to contain ozone of stratospheric origin and was detected with color-enhanced satellite water vapor imagery. Soundings were placed in three categories: sondes launched ahead of an approaching cold front, sondes launched behind a passing cold front, and sondes launched into cutoff lows. This stratification explained much of the vertical ozone variation at each site. Tropospheric mean ozone increased with height at all three sites under postfrontal conditions, with relatively little increase with height under prefrontal conditions. Backward trajectories from Charlottesville indicated that the postfrontal air masses originated at high elevations to the northwest, while prefrontal air masses came from relatively lower elevations to the southwest. Transport also explained the lower tropospheric ozone differences between Charlottesville and Bermuda. The enhanced ozone observed in the upper troposphere over Charlottesville compared with the other sites may be linked to upwind conditions more favorable for tropopause folding. However, we believe that selective launching based on the operational use of satellite water vapor imagery allowed us to sample the full range of tropospheric ozone over Charlottesville. Copyright 1998 by the American Geophysical Union. |
format |
Text |
author |
Cooper, O. R. Moody, J. L. Davenport, J. C. Oltmans, S. J. Johnson, B. J. Chen, X. Shepson, P. B. Merrill, J. T. |
spellingShingle |
Cooper, O. R. Moody, J. L. Davenport, J. C. Oltmans, S. J. Johnson, B. J. Chen, X. Shepson, P. B. Merrill, J. T. Influence of springtime weather systems on vertical ozone distributions over three North American sites |
author_facet |
Cooper, O. R. Moody, J. L. Davenport, J. C. Oltmans, S. J. Johnson, B. J. Chen, X. Shepson, P. B. Merrill, J. T. |
author_sort |
Cooper, O. R. |
title |
Influence of springtime weather systems on vertical ozone distributions over three North American sites |
title_short |
Influence of springtime weather systems on vertical ozone distributions over three North American sites |
title_full |
Influence of springtime weather systems on vertical ozone distributions over three North American sites |
title_fullStr |
Influence of springtime weather systems on vertical ozone distributions over three North American sites |
title_full_unstemmed |
Influence of springtime weather systems on vertical ozone distributions over three North American sites |
title_sort |
influence of springtime weather systems on vertical ozone distributions over three north american sites |
publisher |
DigitalCommons@URI |
publishDate |
1998 |
url |
https://digitalcommons.uri.edu/gsofacpubs/1911 https://doi.org/10.1029/98JD01801 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Graduate School of Oceanography Faculty Publications |
op_relation |
https://digitalcommons.uri.edu/gsofacpubs/1911 doi:10.1029/98JD01801 https://doi.org/10.1029/98JD01801 |
op_doi |
https://doi.org/10.1029/98JD01801 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
103 |
container_issue |
D17 |
container_start_page |
22001 |
op_container_end_page |
22013 |
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1789969711808643072 |