Photochemical Impact on Ozone Fluxes in Coastal Waters
Ozone fluxes, derived from gradient measurements in Northeast Atlantic coastal waters, were observed to depend on both tide height and solar radiation. Peak ozone fluxes of −0.26±0.04 μg m-2 s-1 occurred during low-tide conditions when exposed microalgae fields contributed to the flux footprint. Add...
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ftdoajarticles:oai:doaj.org/article:eb378ee466e64710b1fbc64e33f0cfec 2024-09-15T18:25:23+00:00 Photochemical Impact on Ozone Fluxes in Coastal Waters L. Coleman P. McVeigh H. Berresheim M. Martino C. D. O'Dowd 2012-01-01T00:00:00Z https://doi.org/10.1155/2012/943785 https://doaj.org/article/eb378ee466e64710b1fbc64e33f0cfec EN eng Wiley http://dx.doi.org/10.1155/2012/943785 https://doaj.org/toc/1687-9309 https://doaj.org/toc/1687-9317 1687-9309 1687-9317 doi:10.1155/2012/943785 https://doaj.org/article/eb378ee466e64710b1fbc64e33f0cfec Advances in Meteorology, Vol 2012 (2012) Meteorology. Climatology QC851-999 article 2012 ftdoajarticles https://doi.org/10.1155/2012/943785 2024-08-05T17:48:43Z Ozone fluxes, derived from gradient measurements in Northeast Atlantic coastal waters, were observed to depend on both tide height and solar radiation. Peak ozone fluxes of −0.26±0.04 μg m-2 s-1 occurred during low-tide conditions when exposed microalgae fields contributed to the flux footprint. Additionally, at mid-to-high tide, when water surfaces contribute predominantly to the flux footprint, fluxes of the order of −0.12±0.03 μg m-2 s-1 were observed. Considering only fluxes over water covered surfaces, and using an advanced ozone deposition model that accounts for surface-water chemistry enhancing the deposition sink, it is demonstrated that a photochemical enhancement reaction with dissolved organic carbon (DOC) is required to explain the enhanced ozone deposition during daylight hours. This sink amounts to an ozone loss rate of up to 0.6 ppb per hour under peak solar irradiance and points to a missing sink in the marine boundary layer ozone budget. Article in Journal/Newspaper Northeast Atlantic Directory of Open Access Journals: DOAJ Articles Advances in Meteorology 2012 1 6 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Meteorology. Climatology QC851-999 |
spellingShingle |
Meteorology. Climatology QC851-999 L. Coleman P. McVeigh H. Berresheim M. Martino C. D. O'Dowd Photochemical Impact on Ozone Fluxes in Coastal Waters |
topic_facet |
Meteorology. Climatology QC851-999 |
description |
Ozone fluxes, derived from gradient measurements in Northeast Atlantic coastal waters, were observed to depend on both tide height and solar radiation. Peak ozone fluxes of −0.26±0.04 μg m-2 s-1 occurred during low-tide conditions when exposed microalgae fields contributed to the flux footprint. Additionally, at mid-to-high tide, when water surfaces contribute predominantly to the flux footprint, fluxes of the order of −0.12±0.03 μg m-2 s-1 were observed. Considering only fluxes over water covered surfaces, and using an advanced ozone deposition model that accounts for surface-water chemistry enhancing the deposition sink, it is demonstrated that a photochemical enhancement reaction with dissolved organic carbon (DOC) is required to explain the enhanced ozone deposition during daylight hours. This sink amounts to an ozone loss rate of up to 0.6 ppb per hour under peak solar irradiance and points to a missing sink in the marine boundary layer ozone budget. |
format |
Article in Journal/Newspaper |
author |
L. Coleman P. McVeigh H. Berresheim M. Martino C. D. O'Dowd |
author_facet |
L. Coleman P. McVeigh H. Berresheim M. Martino C. D. O'Dowd |
author_sort |
L. Coleman |
title |
Photochemical Impact on Ozone Fluxes in Coastal Waters |
title_short |
Photochemical Impact on Ozone Fluxes in Coastal Waters |
title_full |
Photochemical Impact on Ozone Fluxes in Coastal Waters |
title_fullStr |
Photochemical Impact on Ozone Fluxes in Coastal Waters |
title_full_unstemmed |
Photochemical Impact on Ozone Fluxes in Coastal Waters |
title_sort |
photochemical impact on ozone fluxes in coastal waters |
publisher |
Wiley |
publishDate |
2012 |
url |
https://doi.org/10.1155/2012/943785 https://doaj.org/article/eb378ee466e64710b1fbc64e33f0cfec |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Advances in Meteorology, Vol 2012 (2012) |
op_relation |
http://dx.doi.org/10.1155/2012/943785 https://doaj.org/toc/1687-9309 https://doaj.org/toc/1687-9317 1687-9309 1687-9317 doi:10.1155/2012/943785 https://doaj.org/article/eb378ee466e64710b1fbc64e33f0cfec |
op_doi |
https://doi.org/10.1155/2012/943785 |
container_title |
Advances in Meteorology |
container_volume |
2012 |
container_start_page |
1 |
op_container_end_page |
6 |
_version_ |
1810465896050720768 |