Agenda

Tue, Aug 19: Overview | Air quality | Gas-phase chemistry | Posters
Wed, Aug 20: Biosphere-atmosphere interactions | Persistent pollutants | Multiphase chemistry

Tuesday, 19 August

Model Overview and Opening Talks

• Welcome. Meeting and GEOS-Chem Model Overview (Eloise Marais, UCL)
• Broadening Scope of GEOS-Chem (Seb Eastham, Imperial)
• GEOS-Chem Software Engineers / Support Team update (Bob Yantosca, Harvard)
• Chemical uncertainties in chemistry transport modelling (Mat Evans, U. York)
• Investigating increasing levels of carbon monoxide across southern extratropical latitudes (Clara Nussbaumer, ETH Zurich)

Air quality and atmospheric composition

• KEYNOTE: Using global and regional climate models to estimate the impacts of climate change and urbanisation on health (Clare Heaviside, UCL)
• Multiphase HONO formation pathways in Central London (Eleanor Gershenson-Smith, UCL)
• Improved surface NO2 estimates over India using satellite retrievals and modelling (Ardra Divakaran, IIT Delhi)

ECMWF / GEOS-Chem gas-phase chemistry (mostly halogens!)

• KEYNOTE: ECMWF products and activities of appeal to the GEOS-Chem community (Vincent-Henri Peuch, ECMWF)
• Understanding chlorine chemistry in GEOS-Chem (Amy Lees, U. York)
• The role of iodine chemistry in a changing climate (Ryan Pound, U. York)
• The importance of speciated iodine aerosol in gas-phase reactive iodine abundance (Alli Moon, U. Washington)
• Impacts of aromatic peroxy radical chemistry on atmospheric ozone (Stephen MacFarlane, U. Wollongong)

Posters

• Inverse modeling of satellite and ¹³C observations highlights the role of wet tropics in driving the 2020–2022 methane surge (Zhen Qu, North Carolina State University)
• Climate impact of atmospheric methane removal strategies (Qimin Sun, U. Edinburgh)
• Implementation of the Global Forest Fire Emissions Prediction System in GEOS-Chem (Timothé Payette, Montréal University)
• Characterizing the air quality and health impacts from oil and gas emissions in Mexico using GCHP (Omar Nawaz, Cardiff University)
• Future projection of global air pollution in 2060 (Hiroo Hata, AIST)
• Modelling southern Africa air pollution (Mbavhi Maliage, U. York)
• Assessing the need for heterogeneous production of small acids in GEOS-Chem using DC8 aircraft observations (Huilin Zhan, UCL)
• Present day impacts of road transport on atmospheric chemistry and public health in India using GEOS-Chem (Karn Vohra, U. Birmingham)
• Impacts of the GAINS LRTAP MTFR emission scenario in Europe for 2040 (Coralina Hernández Trujillo, CIEMAT)
• Spatial and diurnally varying lightning NOx production rates for use in GEOS-Chem (Bex Horner, UCL)
• A GPU-Accelerated ALE Solver for Low-Diffusion Plume Transport (Oliver Marx, Imperial)

Day 2, Wednesday 20 August

Biosphere-Atmosphere Interactions

• KEYNOTE: Modelling atmospheric compositions with the EMEP atmospheric chemistry transport model (Massimo Vieno, UKCEH)
• Integration of atmospheric chemistry and terrestrial biogeochemistry to advance the understanding of global nitrogen cycle (Cheng Gong, Max Planck Institute for Biogeochemistry)
• Evaluating the effects of variability in biomass burning emission inventories on modeled smoke concentrations: Insights from the 2019 and 2021 Canadian wildfire seasons (Samaneh Ashraf, Montréal University)
• Influence of humidity-dependent stomatal conductance of VOCs on ozone and secondary organic aerosols (SOA) (Connor Barker, UCL)

Persistent Pollutants

• KEYNOTE: Met Office dispersion modelling tools for pollen and air quality (Lucy Neal, UK Met Office)
• PFAS species in the Arctic (Freja F. Oesterstroem, Aarhus University)
• Development and applications of the AWS-based Integrated Methane Inversion (IMI) tool for quantifying methane emissions with satellite observations (Daniel Varon, MIT)
• Modelling the atmospheric degradation of HFO-1234ze (Beth Killen, UNSW Sydney)
• Sectoral top-down emission estimates using TEMPO and LEO satellite observations (Zhen Qu, North Carolina State University)

Multiphase Chemistry

• KEYNOTE: Modelling the sources and fate of reduced sulfur compounds in the marine atmosphere (Alex Archibald, UK NCAS and U. Cambridge)
• Global impacts of organic aerosol phase state (Yumin Li, ETH Zurich)
• Updates on wet scavenging and its impacts on horizontal and vertical aerosol distributions (Gan Luo, SUNY-Albany)
• Closing Remarks (Seb + Eloise)