Paul Griffiths

Paul Griffiths

Ozone, methane, aerosols, atmospheric chemistry, climate modelling

Research

Active Reseach     -     Publications     -     (Google Scholar Profile)

Active Research

  • High resolution atmospheric chemistry modelling - see a recent post
  • Impact of the COP26 Global Methane Pledge - with colleagues at Met Office Hadley Centre
  • TerraFIRMA: Future Impacts, Risks and Mitigation Actions in a changing Earth system - WP2 co-lead
  • RAMIP (starting 2024)

Working Papers

AerChemMIP retrospective Effect of Montreal Protocol on tropospheric oxidising capacity

Selected Works in Progress

Published papers

2022

  • The role of future anthropogenic methane emissions in air quality and climate. DOI:10.1038/s41612-022-00247-5

  • Description and Evaluation of an Emission-Driven and Fully Coupled Methane Cycle in UKESM1. DOI:10.1029/2021MS002982 (evaluation of OH, CH4 and CO model performance)

  • Attribution of stratospheric and tropospheric ozone changes between 1850 and 2014 in CMIP6 models. 10.1029/2022JD036452 (histSST-piCH4 and -piO3 experiments)

2021

  • The role of natural halogens in global tropospheric ozone chemistry and budget under different 21st century climate scenarios (comparison with tropospheric ozone burdens in CMIP6 models) DOI:10.1029/2021JD034859

  • Tropospheric ozone in CMIP6 models (co-lead) DOI:10.5194/acp-21-4187-2021 - final version featured an extended look at STE (https://github.com/paultgriffiths/Tropospheric-ozone-in-CMIP6-simulations_data_analysis/tree/main/STE)

  • Ascorbate oxidation by iron, copper and reactive oxygen species: review, model development, and derivation of key rate constants (early-stages development of box model). DOI:10.1038/s41598-021-86477-8

  • Opinion: The Germicidal Effect of Ambient Air (Open Air Factor) Revisited (early data analysis). DOI:10.5194/acp-2021-375

  • Climate Change 2021. The Physical Science Basis. Chapter 6 “Short-lived climate forcers” Contributing Author

  • The Impacts of Aerosol Emissions on Historical Climate in UKESM1. DOI: 10.3390/atmos11101095 (histSST-piCH4 and -piO3 experiments)

2020

  • Methane mitigation: methods to reduce emissions, on the path to the Paris Agreement (box modelling of future methane pathways). DOI:10.1029/2019RG000675

  • Trends in global tropospheric hydroxyl radical and methane lifetime since 1850 from AerChemMIP (I led the UKESM-1 histSST-piCH4 and histSST-piO3 AerChemMIP integrations for the UKESM-1 team, and these were used in this paper) DOI:10.5194/acp-2019-1219

  • Assessment of pre-industrial to present-day anthropogenic climate forcing in UKESM1 (Together with James Keeble, contributed to the analysis for the ozone/OH/aerosol coupling in parts of section 4.4) DOI:10.5194/acp-2019-1152

2019

  • Modelling the potential impacts of the recent, unexpected increase in CFC-11 emissions on total column ozone recovery (box modelling). DOI:10.5194/acp-2019-747

  • Description and evaluation of the UKCA stratosphere-troposphere chemistry scheme (StratTrop vn 1.0) implemented in UKESM1 (some analysis e.g. Lawrence plots). DOI:10.5194/gmd-2019-246

  • Influence of Sea Ice-Derived Halogens on Atmospheric HOx as Observed in Springtime Coastal Antarctica -(box modelling of BrO levels using BOXMOX). DOI:10.1029/2019GL083825

  • UKESM1: Description and Evaluation of the U.K. Earth System Model (some analysis, e.g. ozone analysis). DOI:/10.1029/2019MS001739

  • Measuring Aerosol Phase Changes and Hygroscopicity with a Microresonator Mass Sensor. DOI:10.1021/acs.analchem.8b00114

2018

  • Comprehensive modeling study of ozonolysis of oleic acid aerosol based on real‐time, online measurements of aerosol composition (contributed the aerosol box modelling). DOI:10.1002/2016JD026221