Zobrazeno 1 - 10 of 317 pro vyhledávání: '"John A. Pyle"'
1
Akademický článek
Prescribing Zonally Asymmetric Ozone Climatologies in Climate Models: Performance Compared to a Chemistry‐Climate Model
Autor: Cameron D. Rae, James Keeble, Peter Hitchcock, John A. Pyle
Publikováno v: Journal of Advances in Modeling Earth Systems, Vol 11, Iss 4, Pp 918-933 (2019)
Abstract Three different methods of specifying ozone in an atmosphere‐only version of the HadGEM3‐A global circulation model are compared to the coupled chemistry configuration of this model. These methods include a specified zonal‐mean ozone c
Externí odkaz: https://doaj.org/article/7872a4b15ce84ebda8ae0d96243b19e5
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2
Akademický článek
Using Machine Learning to Make Computationally Inexpensive Projections of 21st Century Stratospheric Column Ozone Changes in the Tropics
Autor: James Keeble, Yu Yeung Scott Yiu, Alexander T. Archibald, Fiona O’Connor, Alistair Sellar, Jeremy Walton, John A. Pyle
Publikováno v: Frontiers in Earth Science, Vol 8 (2021)
Stratospheric ozone projections in the tropics, modeled using the UKESM1 Earth system model, are explored under different Shared Socioeconomic Pathways (SSPs). Consistent with other studies, it is found that tropical stratospheric column ozone does n
Externí odkaz: https://doaj.org/article/2f01a7705eab4286835a1729773bdda4
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3
Akademický článek
The increasing threat to stratospheric ozone from dichloromethane
Autor: Ryan Hossaini, Martyn P. Chipperfield, Stephen A. Montzka, Amber A. Leeson, Sandip S. Dhomse, John A. Pyle
Publikováno v: Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
Chlorine-containing species deplete stratospheric ozone and while chlorofluorocarbons have been drastically reduced, dichloromethane concentrations have recently increased rapidly. Hossainiet al. show that continued growth at this rate could result i
Externí odkaz: https://doaj.org/article/c1d479325204481baafd33b2e9cd26d7
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4
Akademický článek
The stratospheric response to changes in ozone and carbon dioxide as modelled with a GCM including parameterised ozone chemistry
Autor: Peter Braesicke, Margaret M. Hurwitz, John A. Pyle
Publikováno v: Meteorologische Zeitschrift, Vol 15, Iss 3, Pp 343-354 (2006)
To disentangle the combined effect of CO2 and O3 changes on both the large-scale circulation and global distribution of ozone, we have conducted four idealised climate change experiments using a version of the Met Office's Unified Model (UM) with a w
Externí odkaz: https://doaj.org/article/009701ff38ab4eee8c7b69b5f089b0dd
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5
Isoprene chemistry in pristine and polluted Amazon environments: Eulerian and Lagrangian model frameworks and the strong bearing they have on our understanding of surface ozone and predictions of rainforest exposure to this priority pollutant
Autor: James R. Hopkins, James D. Lee, David E. Oram, J. Lathière, C. N. Hewitt, Nathan Luke Abraham, Alastair C. Lewis, Joel Brito, Alexander T. Archibald, G. Forster, Stephane Bauguitte, John A. Pyle, E. House, Eiko Nemitz, Didier Hauglustaine, A. R. MacKenzie, Paul T. Griffiths, Palmira Messina, C. F. Demarco, J. G. Levine, O. J. Squire, Paulo Artaxo
Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
This study explores our ability to simulate the atmospheric chemistry stemming from isoprene emissions in pristine and polluted regions of the Amazon basin. We confront two atmospheric chemistry models – a global, Eulerian chemistry-climate model (
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6be476bb72356064031c4737f90ab14
https://hal.science/hal-04114757
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6
Responses of Arctic sea ice to stratospheric ozone depletion
Autor: Jiankai Zhang, Wenshou Tian, John A. Pyle, James Keeble, Nathan Luke Abraham, Martyn P. Chipperfield, Fei Xie, Qinghua Yang, Longjiang Mu, Hong-Li Ren, Lin Wang, Mian Xu
Publikováno v: Science Bulletin. 67:1182-1190
The Arctic has experienced several extreme springtime stratospheric ozone depletion events over the past four decades, particularly in 1997, 2011 and 2020. However, the impact of this stratospheric ozone depletion on the climate system remains poorly
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8608912241423e1c4dd194e2692dec74
https://doi.org/10.1016/j.scib.2022.03.015
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8
Atmospheric composition and climate impacts of a future hydrogen economy
Autor: Nicola J. Warwick, Alex T. Archibald, Paul T. Griffiths, James Keeble, Fiona M. O'Connor, John A. Pyle, Keith P. Shine
Hydrogen is expected to play a key role in the global energy transition to net zero emissions in many scenarios. However, fugitive emissions of hydrogen into the atmosphere during its production, storage, distribution and use could reduce the climate
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da332bac3a978e11c4a417af50e45174
https://acp.copernicus.org/preprints/acp-2023-29/
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