Results 41 to 50 of about 2,049 (178)

The Role of Lightning in Atmospheric Chemistry

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 16, 28 August 2026.
Abstract Lightning has important effects on atmospheric constituents in primarily the middle and upper troposphere. We summarize the effects of lightning on atmospheric chemistry that have been published since the last major review in 2007. The estimates of NOx production by lightning (LNOx) are based on five methods: theoretical/laboratory estimates ...
Kenneth E. Pickering, Dale J. Allen, Heidi Huntrieser   +2 more
wiley   +1 more source

Improving Machine Learning Based PM2.5 Prediction by Segregating Biomass Emission Factor from Chemical Transport Model [PDF]

E3S Web of Conferences
Located in the heart of Mainland Southeast Asia, Thailand is associated with high biomass burning (BB) activities from local and neighbouring countries.
Sukprasert Supitcha, Shimadera Hikari, Araki Shin, Thongthammachart Tin, Thanasutives Pongpisit, Viet Mui Luong, Matsuo Tomohito, Kondo Akira   +7 more
doaj   +1 more source

The Impact of Volatile Organic Compounds and Oxides of Nitrogen on Ground‐Level Ozone and Secondary Organic Aerosols Formation Over the Triad Region in North Carolina

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 15, 16 August 2026.
Abstract Ground‐level ozone and secondary organic aerosol (SOA) formation in urban‐rural environments involves complex interactions between nitrogen oxides (NOx) and volatile organic compounds (VOCs). This study employed WRF‐Chem version 4.2 with SAPRC99 chemistry to investigate ozone and SOA formation in the Triad region NC during peak photochemical ...
Laxmi Odari, Brian J. Gaudet, Samson Hagos, Marc N. Fiddler, Manish Shrivastava, Solomon Bililign   +5 more
wiley   +1 more source

Sensibility Study for PBL Scheme of WRF-CMAQ

Journal of Korean Society for Atmospheric Environment, 2011
Numerical simulations were carried out to investigate the impact of PBL (Planetary boundary layer) scheme implemented in WRF on the result of meteorological fields and CMAQ modeling. 25-day period, representing high ozone concentration, was selected for the simulations.
Nan-Kyoung Moon, Soon-Tae Kim, Ji-Hyun Seo   +2 more
openaire   +2 more sources

A regional carbon data assimilation system and its preliminary evaluation in East Asia [PDF]

Atmospheric Chemistry and Physics, 2015
In order to optimize surface CO2 fluxes at grid scales, a regional surface CO2 flux inversion system (Carbon Flux Inversion system and Community Multi-scale Air Quality, CFI-CMAQ) has been developed by applying the ensemble Kalman filter (EnKF) to ...
Z. Peng, M. Zhang, X. Kou, X. Tian, X. Ma   +4 more
doaj   +1 more source

Exposure to Airborne Particulate Matter in Regional Environments of Bangladesh and Its Effects on Respiratory Health: A Narrative Review

Health Science Reports, Volume 9, Issue 8, August 2026.
ABSTRACT Background Air pollution represents a critical public health crisis in Bangladesh, driven by rapid industrialization, urbanization, and widespread emissions from brick kilns, traffic, and biomass burning. Elevated levels of fine particulate matter and toxic gases across both urban and rural regions contributes to significant reductions in life
K. M. Ferdousul Haque, Mohammad A Rashid, Mohammad Sharifur Rahman, Md. Khalid Hossain, Md. Shafiul Hossen   +4 more
wiley   +1 more source

Extending the Community Multiscale Air Quality (CMAQ) modeling system to hemispheric scales: overview of process considerations and initial applications [PDF]

Atmospheric Chemistry and Physics, 2017
The Community Multiscale Air Quality (CMAQ) modeling system is extended to simulate ozone, particulate matter, and related precursor distributions throughout the Northern Hemisphere.
R. Mathur, J. Xing, J. Xing, R. Gilliam, G. Sarwar, C. Hogrefe, J. Pleim, G. Pouliot, S. Roselle, T. L. Spero, D. C. Wong, J. Young   +11 more
doaj   +1 more source

From Static to Spatiotemporal: Dynamic Volatility Distribution Parameterizations for Global Organic Aerosol Simulations

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 8, August 2026.
Abstract Organic aerosols (OA) are a major component of fine particulate matter that affects air quality and climate, yet atmospheric models often underestimate their concentrations, partly reflecting uncertainties in the assumed volatility distribution of primary organic aerosol emissions.
Mingxinyu Lu, Chloe Yuchao Gao
wiley   +1 more source

Simulation of GOES-R ABI aerosol radiances using WRF-CMAQ: a case study approach [PDF]

Atmospheric Chemistry and Physics, 2014
In anticipation of the upcoming GOES-R launch we simulate visible and near-infrared reflectances of the Advanced Baseline Imager (ABI) for cases of high aerosol loading containing regional haze and smoke over the eastern United States.
S. A. Christopher
doaj   +1 more source

Association Between PM2.5 Components and Cerebral Hypoperfusion: A Mediation Role of Inflammatory Biomarkers

European Journal of Neurology, Volume 33, Issue 8, August 2026.
Prolonged exposure to PM2.5, particularly its organic matter (OM) and black carbon (BC) components, is independently associated with an elevated risk of cerebral hypoperfusion, with immune‐inflammatory pathways playing a partial mediating role. These findings highlight the need for component‐targeted air quality policies to reduce cerebrovascular risk ...
Xingyan Xu, Xinyue Lu, Nan Wang, Liuyan Zheng, Jianhui Guo, Tongjin Xu, Yiming Guo, Hao Li, Yi Yang, Le Yang   +9 more
wiley   +1 more source