J
Jim Haywood
Researcher at University of Exeter
Publications - 238
Citations - 22754
Jim Haywood is an academic researcher from University of Exeter. The author has contributed to research in topics: Aerosol & Radiative forcing. The author has an hindex of 67, co-authored 213 publications receiving 20503 citations. Previous affiliations of Jim Haywood include Met Office & Princeton University.
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Journal ArticleDOI
Estimating the climate impact of linear contrails using the UK Met Office climate model
TL;DR: In this paper, the HadGEM2 global climate model is employed to investigate some of the linear contrail effects on climate, and the authors find that at 100 times the air traffic of year 2000, linear contrails would change the equilibrium global-mean temperature by +0.13 K, corresponding to a climate sensitivity of 0.3 K/(Wm(-2)) and a climate efficacy of 31% (significantly smaller than the only previously published estimate of 59%).
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Prediction of visibility and aerosol within the operational Met Office Unified Model. II: Validation of model performance using observational data
Jim Haywood,Mike Bush,Steven J. Abel,Bernie Claxton,Hugh Coe,Jonathan Crosier,Mark Harrison,Bruce Macpherson,Mark Naylor,Simon R. Osborne +9 more
TL;DR: In this paper, aircraft and surface-based measurements are used to assess these parametrizations and to assess the performance of the modelled aerosol mass mixing ratio and visibility, while comparisons of visibility reveal a systematic bias to low visibilities in the model, particularly in clean atmospheric conditions.
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Vertical variability of the properties of highly aged biomass burning aerosol transported over the southeast Atlantic during CLARIFY-2017
Huihui Wu,Jonathan Taylor,Kate Szpek,Justin M. Langridge,Paul I. Williams,Michael Flynn,James Allan,Steven J. Abel,Joseph Pitt,Joseph Pitt,Michael I. Cotterell,Michael I. Cotterell,Michael I. Cotterell,Cathryn Fox,Nicholas W. Davies,Nicholas W. Davies,Jim Haywood,Jim Haywood,Hugh Coe +18 more
TL;DR: In this article, the vertical distribution of submicron aerosols and their properties were characterized over the remote southeast Atlantic for the first time, using airborne in-situ measurements made during the CLoud-Aerosol-Radiation Interactions and Forcing for Year 2017 (CLARIFY-2017) campaign.
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Comparison of Saharan dust aerosol optical depths retrieved using aircraft mounted Pyranometers and 2-channel AVHRR algorithms
TL;DR: In this paper, the 0.55 μm optical depth of the Saharan dust aerosol plume was determined from C-130 pyranometer data for two different days and the results compared to those from a 2-channel Advanced Very High Resolution Radiometer (AVHRR) retrieval algorithm.
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Are changes in atmospheric circulation important for black carbon aerosol impacts on clouds, precipitation, and radiation?
TL;DR: In this article, the role of large-scale circulation changes in governingsuch feedbacks was investigated, and the results showed that largescale dynamical responses to BC aerosols are important forregional impacts but have a limited role in determining the effective radiative forcing and global-meanclimate response.