Zobrazeno 1 - 10
of 215
pro vyhledávání: '"A. Akingunola"'
Publikováno v:
Geoscientific Model Development, Vol 17, Pp 685-707 (2024)
Below-cloud scavenging (BCS) is the process of aerosol removal from the atmosphere between cloud base and the ground by precipitation (e.g., rain or snow), and affects aerosol number or mass concentrations, size distribution, and lifetime. An accurat
Externí odkaz:
https://doaj.org/article/e3a78b0a60634dd6a90a5a7a4515c3d2
Autor:
M. Majdzadeh, C. A. Stroud, C. Sioris, P. A. Makar, A. Akingunola, C. McLinden, X. Zhao, M. D. Moran, I. Abboud, J. Chen
Publikováno v:
Geoscientific Model Development, Vol 15, Pp 219-249 (2022)
The photolysis module in Environment and Climate Change Canada's online chemical transport model GEM-MACH (GEM: Global Environmental Multi-scale – MACH: Modelling Air quality and Chemistry) was improved to make use of the online size and compositio
Externí odkaz:
https://doaj.org/article/791eb73f912e495d9ecd95d88590c595
Autor:
D. Griffin, C. A. McLinden, E. Dammers, C. Adams, C. E. Stockwell, C. Warneke, I. Bourgeois, J. Peischl, T. B. Ryerson, K. J. Zarzana, J. P. Rowe, R. Volkamer, C. Knote, N. Kille, T. K. Koenig, C. F. Lee, D. Rollins, P. S. Rickly, J. Chen, L. Fehr, A. Bourassa, D. Degenstein, K. Hayden, C. Mihele, S. N. Wren, J. Liggio, A. Akingunola, P. Makar
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 7929-7957 (2021)
Smoke from wildfires is a significant source of air pollution, which can adversely impact air quality and ecosystems downwind. With the recently increasing intensity and severity of wildfires, the threat to air quality is expected to increase. Satell
Externí odkaz:
https://doaj.org/article/7aa2c03018464c20bb4d6505f128deb8
Autor:
S. Fathi, M. Gordon, P. A. Makar, A. Akingunola, A. Darlington, J. Liggio, K. Hayden, S.-M. Li
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 15461-15491 (2021)
We investigate the potential for aircraft-based top-down emission rate retrieval over- and under-estimation using a regional chemical transport model, the Global Environmental Multiscale-Modeling Air-Quality and CHemistry (GEM-MACH). In our investiga
Externí odkaz:
https://doaj.org/article/2b12b2554e684293ae863eda9237ad85
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 12291-12316 (2021)
Theoretical models of the Earth's atmosphere adhere to an underlying concept of flow driven by radiative transfer and the nature of the surface over which the flow is taking place: heat from the sun and/or anthropogenic sources are the sole sources o
Externí odkaz:
https://doaj.org/article/54e0be0ce9d24b76bdf5c7de375c664a
Autor:
P. A. Makar, A. Akingunola, J. Chen, B. Pabla, W. Gong, C. Stroud, C. Sioris, K. Anderson, P. Cheung, J. Zhang, J. Milbrandt
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 10557-10587 (2021)
The influence of both anthropogenic and forest-fire emissions, and their subsequent chemical and physical processing, on the accuracy of weather and air-quality forecasts, was studied using a high-resolution, online coupled air-quality model. Simulat
Externí odkaz:
https://doaj.org/article/b5066015ac7544c59eb05fa54560c1c0
Autor:
K. Hayden, S.-M. Li, P. Makar, J. Liggio, S. G. Moussa, A. Akingunola, R. McLaren, R. M. Staebler, A. Darlington, J. O'Brien, J. Zhang, M. Wolde, L. Zhang
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 8377-8392 (2021)
The atmospheric lifetimes of pollutants determine their impacts on human health, ecosystems and climate, and yet, pollutant lifetimes due to dry deposition over large regions have not been determined from measurements. Here, a new methodology based o
Externí odkaz:
https://doaj.org/article/f74d73a9fa784ac783d47fcf845b741f
Autor:
D. Griffin, C. Sioris, J. Chen, N. Dickson, A. Kovachik, M. de Graaf, S. Nanda, P. Veefkind, E. Dammers, C. A. McLinden, P. Makar, A. Akingunola
Publikováno v:
Atmospheric Measurement Techniques, Vol 13, Pp 1427-1445 (2020)
Before the launch of the TROPOspheric Monitoring Instrument (TROPOMI), only two other satellite instruments were able to observe aerosol plume heights globally, the Multi-angle Imaging SpectroRadiometer (MISR) and Cloud-Aerosol Lidar with Orthogonal
Externí odkaz:
https://doaj.org/article/17b889d0e94f464a9fbcf95b7a78d789
Autor:
R. Ghahremaninezhad, W. Gong, M. Galí, A.-L. Norman, S. R. Beagley, A. Akingunola, Q. Zheng, A. Lupu, M. Lizotte, M. Levasseur, W. R. Leaitch
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 14455-14476 (2019)
Atmospheric dimethyl sulfide, DMS(g), is a climatically important sulfur compound and is the main source of biogenic sulfate aerosol in the Arctic atmosphere. DMS(g) production and emission to the atmosphere increase during the summer due to the grea
Externí odkaz:
https://doaj.org/article/ce1b8fd0a05f414e8d58abda02260d03
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 4393-4417 (2019)
We examine the potential benefits of very high resolution for air-quality forecast simulations using a nested system of the Global Environmental Multiscale – Modelling Air-quality and Chemistry chemical transport model. We focus on simulations a
Externí odkaz:
https://doaj.org/article/babd39ac320e445694cfbeaad5e24b65