dc.creator | Fernandez, Rafael Pedro | |
dc.creator | Barrera, Javier Alejandro | |
dc.creator | Lopez Noreña, Ana Isabel | |
dc.creator | Kinnison, Douglas E. | |
dc.creator | Nicely, Julie M. | |
dc.creator | Salawitch, Ross J. | |
dc.creator | Wales, Pamela A. | |
dc.creator | Toselli, Beatriz Margarita | |
dc.creator | Tilmes, Simone | |
dc.creator | Lamarque, Jean François | |
dc.creator | Cuevas, Carlos Alberto | |
dc.creator | Saiz López, Alfonso | |
dc.date.accessioned | 2022-09-07T18:22:21Z | |
dc.date.accessioned | 2022-10-15T08:33:01Z | |
dc.date.available | 2022-09-07T18:22:21Z | |
dc.date.available | 2022-10-15T08:33:01Z | |
dc.date.created | 2022-09-07T18:22:21Z | |
dc.date.issued | 2021-02 | |
dc.identifier | Fernandez, Rafael Pedro; Barrera, Javier Alejandro; Lopez Noreña, Ana Isabel; Kinnison, Douglas E.; Nicely, Julie M.; et al.; Intercomparison between surrogate, explicit, and full treatments of VSL bromine chemistry within the CAM-Chem chemistry-climate model; American Geophysical Union; Geophysical Research Letters; 48; 4; 2-2021; 1-10 | |
dc.identifier | 0094-8276 | |
dc.identifier | http://hdl.handle.net/11336/167805 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/4365439 | |
dc.description.abstract | Many Chemistry-Climate Models (CCMs) include a simplified treatment of brominated very short-lived (VSLBr) species by assuming CH3Br as a surrogate for VSLBr. However, neglecting a comprehensive treatment of VSLBr in CCMs may yield an unrealistic representation of the associated impacts. Here, we use the Community Atmospheric Model with Chemistry (CAM-Chem) CCM to quantify the tropospheric and stratospheric changes between various VSLBr chemical approaches with increasing degrees of complexity (i.e., surrogate, explicit, and full). Our CAM-Chem results highlight the improved accuracy achieved by considering a detailed treatment of VSLBr photochemistry, including sea-salt aerosol dehalogenation and heterogeneous recycling on ice-crystals. Differences between the full and surrogate schemes maximize in the lowermost stratosphere and midlatitude free troposphere, resulting in a latitudinally dependent reduction of ∼1–7 DU in total ozone column and a ∼5%–15% decrease of the OH/HO2 ratio. We encourage all CCMs to include a complete chemical treatment of VSLBr in the troposphere and stratosphere. | |
dc.language | eng | |
dc.publisher | American Geophysical Union | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2020GL091125 | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1029/2020GL091125 | |
dc.rights | https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.subject | CAM-CHEM | |
dc.subject | CCMI | |
dc.subject | LOWERMOST STRATOSPHERIC OZONE | |
dc.subject | TROPOSPHERIC OXIDATION CAPACITY | |
dc.subject | VERY-SHORT LIVED BROMINE | |
dc.title | Intercomparison between surrogate, explicit, and full treatments of VSL bromine chemistry within the CAM-Chem chemistry-climate model | |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:ar-repo/semantics/artículo | |
dc.type | info:eu-repo/semantics/publishedVersion | |