

I study the changes in atmospheric composition happening now and the changes that have occurred over the last few decades. I am especially interested in the development and use of high-precision ground-based measurements that are sensitive to gas fluxes on local to regional to global scales. Sources and sinks can be quantified from these measurements using atmospheric transport models within a mathematical inversion framework. Developing novel measurement methods and improving the quality of information within this framework holds promise to reduce emissions estimate uncertainties, and most importantly, help focus climate change mitigation efforts.
Since 2024 I have been working at Lund University and at the University of Edinburgh. In 2016 I joined the University of Edinburgh and the National Physical Laboratory (London) in a joint position. Between 2014 and 2016 I was at the Met Office Hadley Centre. Prior to this, I was a postdoc at the University of California, San Diego at the Scripps Institution of Oceanography (2009-2014). My undergraduate studies were in Natural Sciences at the University of Cambridge (2001-2005), followed with a PhD in isotope geochemistry at Imperial College London (2005-2009).
Publications
Displaying of publications. Sorted by year, then title.
Combining Top-Down and Bottom-Up Approaches to Evaluate Recent Trends and Seasonal Patterns in UK N2O Emissions
Eric Saboya, Alistair J. Manning, Peter Levy, Kieran M. Stanley, Joseph Pitt, et al.
(2024) Journal of Geophysical Research: Atmospheres, 129
Journal articleFractionation of Methane Isotopologues during Preparation for Analysis from Ambient Air
Emmal Safi, Tim Arnold, Chris Rennick
(2024) Analytical Chemistry, 96 p.6139-6147
Journal articleAtmospheric oxygen as a tracer for fossil fuel carbon dioxide : a sensitivity study in the UK
Hannah Chawner, Eric Saboya, Karina E. Adcock, Tim Arnold, Yuri Artioli, et al.
(2024) Atmospheric Chemistry and Physics, 24 p.4231-4252
Journal articleStep Change in Improving the Accuracy of Nitrous Oxide Reference Materials for Underpinning Atmospheric Composition Measurements
Kanokrat Charoenpornpukdee, Simon O’Doherty, Eric Mussell Webber, Ruth Hill-Pearce, Aimee Hillier, et al.
(2023) Analytical Chemistry, 95 p.12867-12874
Journal articleAtmospheric data support a multi-decadal shift in the global methane budget towards natural tropical emissions
Alice Drinkwater, Paul I. Palmer, Liang Feng, Tim Arnold, Xin Lan, et al.
(2023) Atmospheric Chemistry and Physics, 23 p.8429-8452
Journal articleHigh-resolution inverse modelling of European CH4emissions using the novel FLEXPART-COSMO TM5 4DVAR inverse modelling system
Peter Bergamaschi, Arjo Segers, Dominik Brunner, Jean Matthieu Haussaire, Stephan Henne, et al.
(2022) Atmospheric Chemistry and Physics, 22 p.13243-13268
Journal articleQuantifying fossil fuel methane emissions using observations of atmospheric ethane and an uncertain emission ratio
Alice E. Ramsden, Anita L. Ganesan, Luke M. Western, Matthew Rigby, Alistair J. Manning, et al.
(2022) Atmospheric Chemistry and Physics, 22 p.3911-3929
Journal articleNew metrology for radon at the environmental level
Annette Röttger, Stefan Röttger, Claudia Grossi, Arturo Vargas, Roger Curcoll, et al.
(2021) Measurement Science and Technology, 32
Journal articleAtmospheric observations consistent with reported decline in the UK's methane emissions (2013-2020)
Mark F. Lunt, Alistair J. Manning, Grant Allen, Tim Arnold, Stéphane J.B. Bauguitte, et al.
(2021) Atmospheric Chemistry and Physics, 21 p.16257-16276
Journal articlePotential of Clumped Isotopes in Constraining the Global Atmospheric Methane Budget
Edward Chung, Tim Arnold
(2021) Global Biogeochemical Cycles, 35
Journal articleIsotope fractionation of zinc in the paddy rice soil-water environment and the role of 2’deoxymugineic acid (DMA) as zincophore under Zn limiting conditions
Dominik Weiss, George Northover, Md Hanif, Enrique García-España, Ramon Vilar, et al.
(2021) Chemical Geology, 577
Journal articleDetectability of COVID-19 global emissions reductions in local CO2concentration measurements
H. F. Dacre, L. M. Western, D. Say, S. O'Doherty, T. Arnold, et al.
(2021) Environmental Research Letters, 16
Journal articleEvidence of a recent decline in UK emissions of hydrofluorocarbons determined by the InTEM inverse model and atmospheric measurements
Alistair J. Manning, Alison L. Redington, Daniel Say, Simon O'Doherty, Dickon Young, et al.
(2021) Atmospheric Chemistry and Physics, 21 p.12739-12755
Journal articleBoreas : A Sample Preparation-Coupled Laser Spectrometer System for Simultaneous High-Precision in Situ Analysis of δ13C and δ2H from Ambient Air Methane
Chris Rennick, Tim Arnold, Emmal Safi, Alice Drinkwater, Caroline Dylag, et al.
(2021) Analytical Chemistry, 93 p.10141-10151
Journal articleThe increasing atmospheric burden of the greenhouse gas sulfur hexafluoride (SF6)
Stephan Henne, Stefan Reimann, Martin K. Vollmer, Jens Mühle, Ray F. Weiss, et al.
(2020) Atmospheric Chemistry and Physics, 20 p.7271-7290
Journal articleAdvancing Scientific Understanding of the Global Methane Budget in Support of the Paris Agreement
Anita L. Ganesan, Stefan Schwietzke, Benjamin Poulter, Tim Arnold, Xin Lan, et al.
(2019) Global Biogeochemical Cycles, 33 p.1475-1512
Journal articlePerfluorocyclobutane (PFC-318, c-C4F8) in the global atmosphere
Jens Mühle, Cathy M. Trudinger, Luke M. Western, Matthew Rigby, Martin K. Vollmer, et al.
(2019) Atmospheric Chemistry and Physics, 19 p.10335-10359
Journal articleCharacterizing uncertainties in atmospheric inversions of fossil fuel CO2 emissions in California
Kieran Brophy, Heather Graven, Alistair J. Manning, Emily White, Tim Arnold, et al.
(2019) Atmospheric Chemistry and Physics, 19 p.2991-3006
Journal articleUK greenhouse gas measurements at two new tall towers for aiding emissions verification
Ann R. Stavert, Simon O'Doherty, Kieran Stanley, Dickon Young, Alistair J. Manning, et al.
(2019) Atmospheric Measurement Techniques, 12 p.4495-4518
Journal articleInverse modelling of CF4 and NF3 emissions in East Asia
Tim Arnold, Alistair J. Manning, Jooil Kim, Shanlan Li, Helen Webster, et al.
(2018) Atmospheric Chemistry and Physics, 18 p.13305-13320
Journal articleHistory of chemically and radiatively important atmospheric gases from the Advanced Global Atmospheric Gases Experiment (AGAGE)
Ronald G. Prinn, Ray F. Weiss, Jgor Arduini, Tim Arnold, H. Langley Dewitt, et al.
(2018) Earth System Science Data, 10 p.985-1018
Journal articleInverse modelling of European CH4 emissions during 2006–2012 using different inverse models and reassessed atmospheric observations
Peter Bergamaschi, Ute Karstens, A.J. Manning, Marielle Saunois, Aki Tsurata, et al.
(2018) Atmospheric Chemistry and Physics, 18 p.901-920
Journal articleComparison of four inverse modelling systems applied to the estimation of HFC-125, HFC-134a, and SF6 emissions over Europe
Dominik Brunner, Tim Arnold, Stephan Henne, Alistair Manning, Rona L. Thompson, et al.
(2017) Atmospheric Chemistry and Physics, 17 p.10651-10674
Journal articleGlobal and regional emissions estimates of 1,1-difluoroethane (HFC-152a, CH3CHF2) from in situ and air archive observations
P. G. Simmonds, M. Rigby, A. J. Manning, M. F. Lunt, S. O'Doherty, et al.
(2016) Atmospheric Chemistry and Physics, 16 p.365-382
Journal articleIron and zinc isotope fractionation during uptake and translocation in rice (Oryza sativa) grown in oxic and anoxic soils
Tim Arnold, Tamara Markovic, Guy J.D. Kirk, Maria Schönbächler, Mark Rehkämper, et al.
(2015) Comptes Rendus - Geoscience, 347 p.397-404
Journal articleReconciling reported and unreported HFC emissions with atmospheric observations
Mark F. Lunt, Matthew Rigby, Anita L. Ganesan, Alistair J. Manning, Ronald G. Prinn, et al.
(2015) Proceedings of the National Academy of Sciences of the United States of America, 112 p.5927-5931
Journal articleObservational evidence for interhemispheric hydroxyl-radical parity
P. K. Patra, M. C. Krol, S. A. Montzka, T. Arnold, E. L. Atlas, et al.
(2014) Nature, 513 p.219-223
Journal articleQuantifying aluminum and semiconductor industry perfluorocarbon emissions from atmospheric measurements
Jooil Kim, Paul J. Fraser, Shanlan Li, Jens Mühle, Anita L. Ganesan, et al.
(2014) Geophysical Research Letters, 41 p.4787-4794
Journal articleRecent and future trends in synthetic greenhouse gas radiative forcing
M. Rigby, R. G. Prinn, S. O'Doherty, B. R. Miller, D. Ivy, et al.
(2014) Geophysical Research Letters, 41 p.2623-2630
Journal articleHFC-43-10mee atmospheric abundances and global emission estimates
Tim Arnold, Diane J. Ivy, Christina M. Harth, Martin K. Vollmer, Jens Mühle, et al.
(2014) Geophysical Research Letters, 41 p.2228-2235
Journal articleGlobal emissions of HFC-143a (CH3CF3) and HFC-32 (CH2F2) from in situ and air archive atmospheric observations
S. O'Doherty, M. Rigby, J. Mühle, D. J. Ivy, B. R. Miller, et al.
(2014) Atmospheric Chemistry and Physics, 14 p.9249-9258
Journal articleNitrogen trifluoride global emissions estimated from updated atmospheric measurements
Tim Arnold, Christina M. Harth, Jens Mühle, Alistair J. Manning, Peter K. Salameh, et al.
(2013) Proceedings of the National Academy of Sciences of the United States of America, 110 p.2029-2034
Journal articleAutomated measurement of nitrogen trifluoride in ambient air
Tim Arnold, Jens Mühle, Peter K. Salameh, Christina M. Harth, Diane J. Ivy, et al.
(2012) Analytical Chemistry, 84 p.4798-4804
Journal articleAtmospheric histories and growth trends of C 4F 10, C 5F 12, C 6F 14, C 7F 16 and C 8F 18
D. J. Ivy, T. Arnold, C. M. Harth, L. P. Steele, J. Mühle, et al.
(2012) Atmospheric Chemistry and Physics, 12 p.4313-4325
Journal articleEmissions of halogenated compounds in east asia determined from measurements at Jeju Island, Korea
Shanlan Li, Jooil Kim, Kyung Ryul Kim, Jens Mühle, Seung Kyu Kim, et al.
(2011) Environmental Science and Technology, 45 p.5668-5675
Journal articleErratum : Measurement of zinc stable isotope ratios in biogeochemical matrices by double-spike MC-ICPMS and determination of the isotope ratio pool available for plants from soil (Analytical and Bioanalytical Chemistry (DOI: 10.1007/s00216-010-4231-5))
Tim Arnold, Maria Schönbächler, Mark Rehkämper, Schuofei Dong, Fang Jie Zhao, et al.
(2011) Analytical and Bioanalytical Chemistry, 399 p.1397-1397
Journal article (comment)Atmospheric histories and global emissions of the anthropogenic hydrofluorocarbons HFC-365mfc, HFC-245fa, HFC-227ea, and HFC-236fa
Martin K. Vollmer, Benjamin R. Miller, Matthew Rigby, Stefan Reimann, Jens Mühle, et al.
(2011) Journal of Geophysical Research Atmospheres, 116
Journal articleMeasurement of zinc stable isotope ratios in biogeochemical matrices by double-spike MC-ICPMS and determination of the isotope ratio pool available for plants from soil
Tim Arnold, Maria Schönbächler, Mark Rehkämper, Schuofei Dong, Fang Jie Zhao, et al.
(2010) Analytical and Bioanalytical Chemistry, 398 p.3115-3125
Journal articleMetalliferous sediments from the H.M.S. Challenger voyage (1872-1876)
Vesselin M. Dekov, Javier Cuadros, George D. Kamenov, Dominik Weiss, Tim Arnold, et al.
(2010) Geochimica et Cosmochimica Acta, 74 p.5019-5038
Journal articleEvidence for the mechanisms of zinc uptake by rice using isotope fractionation
Tim Arnold, Guy J.D. Kirk, Matthias Wissuwa, Michael Frei, Fang Jie Zhao, et al.
(2010) Plant, Cell and Environment, 33 p.370-381
Journal articleAccurate and precise zinc isotope ratio measurements in urban aerosols
Simone Gioia, Dominik Weiss, Barry Coles, Tim Arnold, Marly Babinski
(2008) Analytical Chemistry, 80 p.9776-9780
Journal articleAn experimental and theoretical investigation into the use of H2 for the simultaneous removal of ArO+ and ArOH+ isobaric interferences during Fe isotope ratio analysis with collision cell based Multi-Collector Inductively Coupled Plasma Mass Spectrometry
T. Arnold, J. N. Harvey, D. J. Weiss
(2008) Spectrochimica Acta - Part B Atomic Spectroscopy, 63 p.666-672
Journal articleApplication of nontraditional stable-isotope systems to the study of sources and fate of metals in the environment
Dominik J. Weiss, Mark Rehkämper, Ronny Schoenberg, Mike McLaughlin, Jason Kirby, et al.
(2008) Environmental Science and Technology, 42 p.655-664
Journal article reviewA simple combined sample-standard bracketing and inter-element correction procedure for accurate mass bias correction and precise Zn and Cu isotope ratio measurements
Kate Peel, Dominik Weiss, John Chapman, Tim Arnold, Barry Coles
(2008) Journal of Analytical Atomic Spectrometry, 23 p.103-110
Journal articleAtmospheric deposition and isotope biogeochemistry of zinc in ombrotrophic peat
Dominik J. Weiss, Nicole Rausch, Thomas F.D. Mason, Barry J. Coles, Jamie J. Wilkinson, et al.
(2007) Geochimica et Cosmochimica Acta, 71 p.3498-3517
Journal articleInvestigations into the kinetics and thermodynamics of Sb(III) adsorption on goethite (α-FeOOH)
Rhyadd Watkins, Dominik Weiss, William Dubbin, Kate Peel, Barry Coles, et al.
(2006) Journal of Colloid and Interface Science, 303 p.639-646
Journal article