Zobrazeno 1 - 10
of 359
pro vyhledávání: '"M J, Evans"'
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 9899-9921 (2024)
Iodine at the ocean's surface impacts climate and health by removing ozone (O3) from the troposphere both directly via ozone deposition to seawater and indirectly via the formation of iodine gases that are released into the atmosphere. Here we presen
Externí odkaz:
https://doaj.org/article/f843594c7df541e9aebe0a3654ff68f1
Autor:
M. J. Rowlinson, M. J. Evans, L. J. Carpenter, K. A. Read, S. Punjabi, A. Adedeji, L. Fakes, A. Lewis, B. Richmond, N. Passant, T. Murrells, B. Henderson, K. H. Bates, D. Helmig
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 8317-8342 (2024)
Non-methane volatile organic compounds (NMVOCs) generate ozone (O3) when they are oxidised in the presence of oxides of nitrogen, modulate the oxidative capacity of the atmosphere and can lead to the formation of aerosol. Here, we assess the capabili
Externí odkaz:
https://doaj.org/article/614b456fc31f4dc6b69a2bb466df0c01
Publikováno v:
Geoscientific Model Development, Vol 17, Pp 1511-1524 (2024)
We updated the chemical mechanism of the GEOS-Chem global 3-D model of atmospheric chemistry to include new recommendations from the NASA Jet Propulsion Laboratory (JPL) chemical kinetics Data Evaluation 19-5 and from the International Union of Pure
Externí odkaz:
https://doaj.org/article/b6406967ba17403987cc2424a7c8e9d4
Autor:
A. R. Adedeji, S. J. Andrews, M. J. Rowlinson, M. J. Evans, A. C. Lewis, S. Hashimoto, H. Mukai, H. Tanimoto, Y. Tohjima, T. Saito
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 9229-9244 (2023)
The island of Hateruma is the southernmost inhabited island of Japan. Here we interpret observations of ethane (C2H6) and propane (C3H8) together with carbon monoxide (CO), nitrogen oxides (NOx and NOy) and ozone (O3) carried out in the island in 201
Externí odkaz:
https://doaj.org/article/b15e0dc0a7a8423bb627ea1a2d9c9e8e
Autor:
V. Shah, D. J. Jacob, R. Dang, L. N. Lamsal, S. A. Strode, S. D. Steenrod, K. F. Boersma, S. D. Eastham, T. M. Fritz, C. Thompson, J. Peischl, I. Bourgeois, I. B. Pollack, B. A. Nault, R. C. Cohen, P. Campuzano-Jost, J. L. Jimenez, S. T. Andersen, L. J. Carpenter, T. Sherwen, M. J. Evans
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 1227-1257 (2023)
Satellite-based retrievals of tropospheric NO2 columns are widely used to infer NOx (≡ NO + NO2) emissions. These retrievals rely on model information for the vertical distribution of NO2. The free tropospheric background above 2 km is particularly
Externí odkaz:
https://doaj.org/article/5437956e29114505a9448b1abc87fa0e
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 8, Pp n/a-n/a (2023)
Abstract Isoprene, arguably the most studied biogenically emitted gas, is thought to have a large impact on tropospheric composition. Other naturally emitted species have been considered to play a less important role. Here the GEOS‐Chem model is us
Externí odkaz:
https://doaj.org/article/d67ffde733984469835f3af6f1438ff6
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 18351-18374 (2021)
Aromatic hydrocarbons, including benzene, toluene, and xylenes, play an important role in atmospheric chemistry, but the associated chemical mechanisms are complex and uncertain. Sparing representation of this chemistry in models is needed for comput
Externí odkaz:
https://doaj.org/article/14e7e68d96944760a06fdc7f53dc555a
Autor:
X. Wang, D. J. Jacob, W. Downs, S. Zhai, L. Zhu, V. Shah, C. D. Holmes, T. Sherwen, B. Alexander, M. J. Evans, S. D. Eastham, J. A. Neuman, P. R. Veres, T. K. Koenig, R. Volkamer, L. G. Huey, T. J. Bannan, C. J. Percival, B. H. Lee, J. A. Thornton
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 13973-13996 (2021)
We present an updated mechanism for tropospheric halogen (Cl + Br + I) chemistry in the GEOS-Chem global atmospheric chemical transport model and apply it to investigate halogen radical cycling and implications for tropospheric oxidants. Improved rep
Externí odkaz:
https://doaj.org/article/16ef8cc9be854ba8b1a053ec2295f214
Autor:
C. A. Keller, M. J. Evans, K. E. Knowland, C. A. Hasenkopf, S. Modekurty, R. A. Lucchesi, T. Oda, B. B. Franca, F. C. Mandarino, M. V. Díaz Suárez, R. G. Ryan, L. H. Fakes, S. Pawson
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 3555-3592 (2021)
Social distancing to combat the COVID-19 pandemic has led to widespread reductions in air pollutant emissions. Quantifying these changes requires a business-as-usual counterfactual that accounts for the synoptic and seasonal variability of air pollut
Externí odkaz:
https://doaj.org/article/7e76dac4af184ffdaf71668e47656e41
Autor:
M. J. Newland, D. J. Bryant, R. E. Dunmore, T. J. Bannan, W. J. F. Acton, B. Langford, J. R. Hopkins, F. A. Squires, W. Dixon, W. S. Drysdale, P. D. Ivatt, M. J. Evans, P. M. Edwards, L. K. Whalley, D. E. Heard, E. J. Slater, R. Woodward-Massey, C. Ye, A. Mehra, S. D. Worrall, A. Bacak, H. Coe, C. J. Percival, C. N. Hewitt, J. D. Lee, T. Cui, J. D. Surratt, X. Wang, A. C. Lewis, A. R. Rickard, J. F. Hamilton
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 1613-1625 (2021)
The impact of emissions of volatile organic compounds (VOCs) to the atmosphere on the production of secondary pollutants, such as ozone and secondary organic aerosol (SOA), is mediated by the concentration of nitric oxide (NO). Polluted urban atmosph
Externí odkaz:
https://doaj.org/article/b9fb4394f93a4de1940b1eb184c07c30