Results 11 to 20 of about 97,049 (263)

Theoretical Chemistry of Atmospheric Processes

Atmosphere, 2022
Atmospheric chemistry occurs within a fabric of profoundly complicated dynamics through several atmospheric layers [...]
Luís Pedro Viegas
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Nighttime atmospheric chemistry of iodine [PDF]

Atmospheric Chemistry and Physics, 2016
Little attention has so far been paid to the nighttime atmospheric chemistry of iodine species. Current atmospheric models predict a buildup of HOI and I2 during the night that leads to a spike of IO at sunrise, which is not observed by measurements ...
A. Saiz-Lopez, J. M. C. Plane, C. A. Cuevas, A. S. Mahajan, J.-F. Lamarque, D. E. Kinnison   +5 more
doaj   +1 more source

Modeling the Unimolecular Decay Dynamics of the Fluorinated Criegee Intermediate, CF₃CHOO

Photochem, 2023
When volatile alkenes are emitted into the atmosphere, they are rapidly removed by oxidizing agents such as hydroxyl radicals and ozone. The latter reaction is termed ozonolysis and is an important source of Criegee intermediates (CIs), i.e., carbonyl ...
Lily M. Guidry, Courtney A. Poirier, Jordyn M. Ratliff, Ernest Antwi, Barbara Marchetti, Tolga N. V. Karsili   +5 more
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Atmospherically Relevant Chemistry and Aerosol box model – ARCA box (version 1.2) [PDF]

Geoscientific Model Development, 2022
We introduce the Atmospherically Relevant Chemistry and Aerosol box model ARCA box (v.1.2.2). It is a zero-dimensional process model with a focus on atmospheric chemistry and submicron aerosol processes, including cluster formation.
P. Clusius, C. Xavier, L. Pichelstorfer, P. Zhou, T. Olenius, P. Roldin, M. Boy, M. Boy   +7 more
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Development of a chlorine chemistry module for the Master Chemical Mechanism [PDF]

Geoscientific Model Development, 2015
The chlorine atom (Cl·) has a high potential to perturb atmospheric photochemistry by oxidizing volatile organic compounds (VOCs), but the exact role it plays in the polluted troposphere remains unclear.
L. K. Xue, S. M. Saunders, T. Wang, R. Gao, X. F. Wang, Q. Z. Zhang, W. X. Wang   +6 more
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Characterization of a boreal convective boundary layer and its impact on atmospheric chemistry during HUMPPA-COPEC-2010 [PDF]

Atmospheric Chemistry and Physics, 2012
We studied the atmospheric boundary layer (ABL) dynamics and the impact on atmospheric chemistry during the HUMPPA-COPEC-2010 campaign. We used vertical profiles of potential temperature and specific moisture, obtained from 132 radio soundings, to ...
H. G. Ouwersloot, J. Vilà-Guerau de Arellano, A. C. Nölscher, M. C. Krol, L. N. Ganzeveld, C. Breitenberger, I. Mammarella, J. Williams, J. Lelieveld   +8 more
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Introducing Volatile Organic Compound Model Intercomparison Project (VOCMIP) [PDF]

Geoscientific Model Development
Volatile organic compounds (VOCs) play an important role in atmospheric chemistry, influencing the cycling of peroxy and hydroxyl radicals, the formation of tropospheric ozone, hydrogen, secondary organic aerosol, and the lifetime of methane and other ...
G. Myhre, Ø. Hodnebrog, S. Krishnan, M. Sand, M. Sandstad, R. B. Skeie, L. Clarisse, B. Franco, D. B. Millet, K. C. Wells, A. Archibald, A. Archibald, H. N. Bryant, A. T. Chaudhri, D. S. Stevenson, D. Hauglustaine, M. Prather, J. C. Kaiser, D. J. L. Olivie, M. Schulz, O. Wild, Y. Wang, T. Salameh, J. E. Williams, P. Le Sager, F. Paulot, K. Tsigaridis, K. Tsigaridis, H. E. Plaas, H. E. Plaas   +29 more
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Editorial for the Special Issue “Atmospheric Dispersion and Chemistry Models: Advances and Applications”

Atmosphere, 2023
Atmospheric dispersion and chemical transport models (CTMs) are a key tool in both atmospheric chemistry and environmental sciences [...]
Daniel Viúdez-Moreiras
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Global atmospheric chemistry – which air matters [PDF]

Atmospheric Chemistry and Physics, 2017
An approach for analysis and modeling of global atmospheric chemistry is developed for application to measurements that provide a tropospheric climatology of those heterogeneously distributed, reactive species that control the loss of methane and the ...
M. J. Prather, X. Zhu, C. M. Flynn, S. A. Strode, S. A. Strode, J. M. Rodriguez, S. D. Steenrod, S. D. Steenrod, J. Liu, J. Liu, J.-F. Lamarque, A. M. Fiore, L. W. Horowitz, J. Mao, L. T. Murray, D. T. Shindell, S. C. Wofsy   +16 more
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Spatiotemporal analysis of atmospheric aerosols in African environments using MERRA-2 data (1980–2024): Impacts on climate extremes

iScience
Summary: This study investigates atmospheric aerosol trends and their climatic impacts across Africa from 1980 to 2024 using MERRA-2 reanalysis data.
Daniel O. Omokpariola
doaj   +1 more source