Impact of HO2 aerosol uptake on radical levels and O3 production during summertime in Beijing

Autor: Joanna E. Dyson, Lisa K. Whalley, Eloise J. Slater, Robert Woodward-Massey, Chunxiang Ye, James D. Lee, Freya Squires, James R. Hopkins, Rachel E. Dunmore, Marvin Shaw, Jacqueline F. Hamilton, Alastair C. Lewis, Stephen D. Worrall, Asan Bacak, Archit Mehra, Thomas J. Bannan, Hugh Coe, Carl J. Percival, Bin Ouyang, C. Nicholas Hewitt, Roderic L. Jones, Leigh R. Crilley, Louisa J. Kramer, W. Joe F. Acton, William J. Bloss, Supattarachai Saksakulkrai, Jingsha Xu, Zongbo Shi, Roy M. Harrison, Simone Kotthaus, Sue Grimmond, Yele Sun, Weiqi Xu, Siyao Yue, Lianfang Wei, Pingqing Fu, Xinming Wang, Stephen R. Arnold, Dwayne E. Heard

Publikováno v: Atmospheric Chemistry and Physics. 23:5679-5697

The impact of heterogeneous uptake of HO2 on aerosol surfaces on radical concentrations and the O3 production regime in Beijing in summertime was investigated. The uptake coefficient of HO2 onto aerosol surfaces, γHO2, was calculated for the AIRPRO

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::843e79df095f127d1d4e8edca75c0f0a
https://doi.org/10.5194/acp-23-5679-2023

Photo-tautomerization of acetaldehyde as a photochemical source of formic acid in the troposphere

Autor: Miranda F. Shaw, Bálint Sztáray, Lisa K. Whalley, Dwayne E. Heard, Dylan B. Millet, Meredith J. T. Jordan, David L. Osborn, Scott H. Kable

Publikováno v: Nature Communications, Vol 9, Iss 1, Pp 1-7 (2018)

The concentration of formic acid in Earth’s atmosphere is under-predicted by atmospheric models. Here the authors show that acetaldehyde photo-tautomerizes to vinyl alcohol under tropospheric conditions, with subsequent oxidation via OH radicals su

Externí odkaz: https://doaj.org/article/7f096c4e0fca4600b0291c13acfeec05

Kinetics of the cross‐reaction of CH 3 O 2 + HO 2 radicals measured in the Highly Instrumented Reactor for Atmospheric Chemistry

Autor: Freja F. Østerstrøm, Lavinia Onel, Alexander Brennan, Joseph M. Parr, Lisa K. Whalley, Paul W. Seakins, Dwayne E. Heard

Publikováno v: International Journal of Chemical Kinetics.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::31e12cbdf03a143fc96ab7875dd2a6f6
https://doi.org/10.1002/kin.21651

Extensive field evidence for the release of HONO from the photolysis of nitrate aerosols

Autor: Simone T. Andersen, Lucy J. Carpenter, Chris Reed, James D. Lee, Rosie Chance, Tomás Sherwen, Adam R. Vaughan, Jordan Stewart, Pete M. Edwards, William J. Bloss, Roberto Sommariva, Leigh R. Crilley, Graeme J. Nott, Luis Neves, Katie Read, Dwayne E. Heard, Paul W. Seakins, Lisa K. Whalley, Graham A. Boustead, Lauren T. Fleming, Daniel Stone, Khanneh Wadinga Fomba

Publikováno v: Science Advances. 9

Particulate nitrate ( pNO 3 − ) has long been considered a permanent sink for NO x (NO and NO 2 ), removing a gaseous pollutant that is central to air quality and that influences the global self-cleansing capacity of the atmosphere. Evidence is eme

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::90aba41dbc5fe58c1fad464eb4247487
https://doi.org/10.1126/sciadv.add6266

Evaluation of local measurement-driven adjustments of modelled cloud-free atmospheric photolysis rate coefficients

Autor: Hannah L. Walker, Mathew R. Heal, Christine F. Braban, Lisa K. Whalley, Marsailidh M. Twigg

Publikováno v: Walker, H L, Heal, M R, Braban, C F, Whalley, L K & Twigg, M M 2022, ' Evaluation of local measurement-driven adjustments of modelled cloud-free atmospheric photolysis rate coefficients ', Environmental Science: Atmospheres, vol. 2, pp. 1411-1427 . https://doi.org/10.1039/D2EA00072E

Photolysis rate constants (j-values) play a crucial role in atmospheric chemistry modelling, but capturing the variability in local conditions needed for their accurate simulation is computationally challenging. One approach is to adjust modelled cle

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6bacba0c5a181e076073da4e9b7ddc7e
https://hdl.handle.net/20.500.11820/ca5d2312-47f7-4941-832f-f92efaad04af