edu.ucar.opensky::articles:25219 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T22:49:12.606022 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7p272qx https://doi.org/10.22033/ESGF/CMIP6.10033 https Related Dataset #1 NCAR CESM2-WACCM model output prepared for CMIP6 GeoMIP G6solar https://doi.org/10.22033/ESGF/CMIP6.15299 https Related Dataset #2 MPI-M MPI-ESM1.2-HR model output prepared for CMIP6 GeoMIP G6solar https://doi.org/10.22033/ESGF/CMIP6.4191 https Related Dataset #3 CNRM-CERFACS CNRM-ESM2-1 model output prepared for CMIP6 ScenarioMIP ssp245 https://doi.org/10.22033/ESGF/CMIP6.4226 https Related Dataset #4 CNRM-CERFACS CNRM-ESM2-1 model output prepared for CMIP6 ScenarioMIP ssp585 https://doi.org/10.22033/ESGF/CMIP6.4398 https Related Dataset #5 DKRZ MPI-ESM1.2-HR model output prepared for CMIP6 ScenarioMIP ssp245 https://doi.org/10.22033/ESGF/CMIP6.4403 https Related Dataset #6 DKRZ MPI-ESM1.2-HR model output prepared for CMIP6 ScenarioMIP ssp585 https://doi.org/10.22033/ESGF/CMIP6.5058 https Related Dataset #7 IPSL IPSL-CM6A-LR model output prepared for CMIP6 GeoMIP G6solar https://doi.org/10.22033/ESGF/CMIP6.5059 https Related Dataset #8 IPSL IPSL-CM6A-LR model output prepared for CMIP6 GeoMIP G6sulfur https://doi.org/10.22033/ESGF/CMIP6.5264 https Related Dataset #9 IPSL IPSL-CM6A-LR model output prepared for CMIP6 ScenarioMIP ssp245 https://doi.org/10.22033/ESGF/CMIP6.5271 https Related Dataset #10 IPSL IPSL-CM6A-LR model output prepared for CMIP6 ScenarioMIP ssp585 https://doi.org/10.22033/ESGF/CMIP6.5820 https Related Dataset #11 MOHC UKESM1.0-LL model output prepared for CMIP6 GeoMIP G6solar https://doi.org/10.22033/ESGF/CMIP6.5822 https Related Dataset #12 MOHC UKESM1.0-LL model output prepared for CMIP6 GeoMIP G6sulfur https://doi.org/10.22033/ESGF/CMIP6.6447 https Related Dataset #13 MPI-M MPI-ESM1.2-LR model output prepared for CMIP6 GeoMIP G6solar https://doi.org/10.22033/ESGF/CMIP6.6448 https Related Dataset #14 MPI-M MPI-ESM1.2-LR model output prepared for CMIP6 GeoMIP G6sulfur The impact of stratospheric aerosol intervention on the North Atlantic and Quasi-Biennial Oscillations in the Geoengineering Model Intercomparison Project (GeoMIP) G6sulfur experiment 2022-03-07T00:00:00Z publication https://n2t.org/ark:/85065/d7p272qx https://doi.org/10.5194/acp-22-2999-2022 Jones, A. author Haywood, J. M. author Scaife, A. A. author Boucher, O. author Henry, M. author Kravitz, B. author Lurton, T. author Nabat, P. author Niemeier, U. author Séférian, R. author Tilmes, Simone author Visioni, D. author UCAR/NCAR - Library publisher As part of the Geoengineering Model Intercomparison Project a numerical experiment known as G6sulfur has been designed in which temperatures under a high-forcing future scenario (SSP5-8.5) are reduced to those under a medium-forcing scenario (SSP2-4.5) using the proposed geoengineering technique of stratospheric aerosol intervention (SAI). G6sulfur involves introducing sulfuric acid aerosol into the tropical stratosphere where it reflects incoming sunlight back to space, thus cooling the planet. Here, we compare the results from six Earth-system models that have performed the G6sulfur experiment and examine how SAI affects two important modes of natural variability, the northern wintertime North Atlantic Oscillation (NAO) and the Quasi-Biennial Oscillation (QBO). Although all models show that SAI is successful in reducing global mean temperature as designed, they are also consistent in showing that it forces an increasingly positive phase of the NAO as the injection rate increases over the course of the 21st century, exacerbating precipitation reductions over parts of southern Europe compared with SSP5-8.5. In contrast to the robust result for the NAO, there is less consistency for the impact on the QBO, but the results nevertheless indicate a risk that equatorial SAI could cause the QBO to stall and become locked in a phase with permanent westerly winds in the lower stratosphere. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. None eng geoscientificInformation