Analysis of the global atmospheric background sulfur budget in a multi-model framework

Abstract 2) make up about 98 % % 2 strongly affects the sulfate aerosol burden in the northern hemispheric troposphere, while its importance is very uncertain in other regions, where emissions are much lower. Sulfate aerosol is the main deposited species in all models, but the values deviate by a factor of 2. Additionally, the partitioning between wet and dry deposition fluxes is highly model dependent. Inter-model variability in the sulfur species is low in the tropics and increases towards the poles. Differences are largest in the dynamically active northern hemispheric extratropical region and could be attributed to the representation of the stratospheric circulation. The differences in the atmospheric sulfur budget among the models arise from the representation of both chemical and dynamical processes, whose interplay complicates the bias attribution. Several problematic points identified for individual models are related to the specifics of the chemistry schemes, model resolution, and representation of cross-tropopause transport in the extratropics. Further model intercomparison research is needed with a focus on the clarification of the reasons for biases, given the importance of this topic for the stratospheric aerosol injection studies.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Analysis of the global atmospheric background sulfur budget in a multi-model framework ; volume:24 ; number:9 ; year:2024 ; pages:5513-5548 ; extent:36 ; Atmospheric chemistry and physics ; 24, Heft 9 (2024), 5513-5548 (gesamt 36)

Contributors, Places and Time

• Creator: Brodowsky, Christina V. ; Sukhodolov, Timofei ; Chiodo, Gabriel ; Aquila, Valentina ; Bekki, Slimane ; Dhomse, Sandip ; Höpfner, Michael ; Laakso, Anton ; Mann, Graham W. ; Niemeier, Ulrike ; Pitari, Giovanni ; Quaglia, Ilaria ; Rozanov, Eugene ; Schmidt, Anja ; Sekiya, Takashi ; Tilmes, Simone ; Timmreck, Claudia ; Vattioni, Sandro ; Visioni, Daniele ; Yu, Pengfei ; Zhu, Yunqian ; Peter, Thomas

Further information

• DOI: 10.5194/acp-24-5513-2024
• URN: urn:nbn:de:101:1-2405160423473.524644333769
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 11:03 AM CEST