Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
Full latitudinal marine atmospheric measurements of iodine monoxide
Takashima, H.; Kanaya, Y.; Kato, S.; Friedrich, M.M.; Van Roozendael, M.; Taketani, F.; Miyakawa, T.; Komazaki, Y.; Cuevas, C.A.; Saiz-Lopez, A.; Sekiya, T. (2022). Full latitudinal marine atmospheric measurements of iodine monoxide. Atmos. Chem. Phys. 22(6): 4005-4018. https://dx.doi.org/10.5194/acp-22-4005-2022
In: Atmospheric Chemistry and Physics. Copernicus Publ: Göttingen. ISSN 1680-7316; e-ISSN 1680-7324
|   |
| Auteurs | | Top |
- Takashima, H.
- Kanaya, Y.
- Kato, S.
- Friedrich, M.M.
|
- Van Roozendael, M.
- Taketani, F.
- Miyakawa, T.
- Komazaki, Y.
|
- Cuevas, C.A.
- Saiz-Lopez, A.
- Sekiya, T.
|
| Abstract |
Iodine compounds destroy ozone (O3) in the global troposphere and form new aerosols, thereby affecting the global radiative balance. However, few reports have described the latitudinal distribution of atmospheric iodine compounds. This work reports iodine monoxide (IO) measurements taken over unprecedented sampling areas from the Arctic to the Southern Hemisphere and spanning sea surface temperatures (SSTs) of approximately 0 to 31.5 ∘C. The highest IO concentrations were observed over the Western Pacific warm pool (WPWP), where O3 minima were also measured. There, a negative correlation was found between O3 and IO mixing ratios at extremely low O3 concentrations. This correlation is not explained readily by the O3-dependent oceanic fluxes of photolabile inorganic iodine compounds, which is the dominant source in recent global-scale chemistry transport models representing iodine chemistry. Actually, the correlation rather implies that O3-independent pathways can be similarly important in the WPWP. The O3-independent fluxes result in a 15 % greater O3 loss than that estimated for O3-dependent processes alone. The daily O3 loss rate related to iodine over the WPWP is as high as approximately 2 ppbv (parts per billion by volume) despite low O3 concentrations of approximately 10 ppbv, with the loss being up to 100 % greater than that without iodine. This finding suggests that warming SST driven by climate change might affect the marine atmospheric chemical balance through iodine–ozone chemistry. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
