Regional-Scale Ozone Deposition to North-East Atlantic Waters
Joint Authors
Varghese, Saji
Coleman, L.
Jennings, S. Gerard
Tripathi, O. P.
O'Dowd, Colin D.
Source
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-08-24
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
A regional climate model is used to evaluate dry deposition of ozone over the North East Atlantic.
Results are presented for a deposition scheme accounting for turbulent and chemical enhancement of oceanic ozone deposition and a second non-chemical, parameterised gaseous dry deposition scheme.
The first deposition scheme was constrained to account for sea-surface ozone-iodide reactions and the sensitivity of modelled ozone concentrations to oceanic iodide concentration was investigated.
Simulations were also performed using nominal reaction rate derived from in-situ ozone deposition measurements and using a preliminary representation of organic chemistry.
Results show insensitivity of ambient ozone concentrations modelled by the chemical-enhanced scheme to oceanic iodide concentrations, and iodide reactions alone cannot account for observed deposition velocities.
Consequently, we suggest a missing chemical sink due to reactions of ozone with organic matter at the air-sea interface.
Ozone loss rates are estimated to be in the range of 0.5–6 ppb per day.
A potentially significant ozone-driven flux of iodine to the atmosphere is estimated to be in the range of 2.5–500 M molec cm−2 s−1, leading to a mixing-layer enhancement of organo-iodine concentrations of 0.1–22.0 ppt, with an average increase in the N.E.
Atlantic of around 4 ppt per day.
American Psychological Association (APA)
Coleman, L.& Varghese, Saji& Tripathi, O. P.& Jennings, S. Gerard& O'Dowd, Colin D.. 2010. Regional-Scale Ozone Deposition to North-East Atlantic Waters. Advances in Meteorology،Vol. 2010, no. 2010, pp.1-16.
https://search.emarefa.net/detail/BIM-456819
Modern Language Association (MLA)
Coleman, L.…[et al.]. Regional-Scale Ozone Deposition to North-East Atlantic Waters. Advances in Meteorology No. 2010 (2010), pp.1-16.
https://search.emarefa.net/detail/BIM-456819
American Medical Association (AMA)
Coleman, L.& Varghese, Saji& Tripathi, O. P.& Jennings, S. Gerard& O'Dowd, Colin D.. Regional-Scale Ozone Deposition to North-East Atlantic Waters. Advances in Meteorology. 2010. Vol. 2010, no. 2010, pp.1-16.
https://search.emarefa.net/detail/BIM-456819
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-456819