Search Results - "Brasseur, Guy"

The Response in Air Quality to the Reduction of Chinese Economic Activities During the COVID‐19 Outbreak by Shi, Xiaoqin, Brasseur, Guy P.

“…During the COVID‐19 outbreak that took place in early 2020, the economic activities in China were drastically reduced and accompanied by a strong reduction in…”
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Diverse response of surface ozone to COVID-19 lockdown in China by Liu, Yiming, Wang, Tao, Stavrakou, Trissevgeni, Elguindi, Nellie, Doumbia, Thierno, Granier, Claire, Bouarar, Idir, Gaubert, Benjamin, Brasseur, Guy P.

“…Ozone (O3) is a key oxidant and pollutant in the lower atmosphere. Significant increases in surface O3 have been reported in many cities during the COVID-19…”
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Climate services: Lessons learned and future prospects by Brasseur, Guy P., Gallardo, Laura

“…This perspective paper reviews progress made in the last decades to enhance the communication and use of climate information relevant to the political and…”
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Twenty‐Five Years of Lower Tropospheric Ozone Observations in Tropical East Asia: The Influence of Emissions and Weather Patterns by Wang, Tao, Dai, Jianing, Lam, Ka Se, Nan Poon, Chun, Brasseur, Guy P.

“…Tropospheric ozone affects the Earth's radiative balance, oxidative capacity, and air quality, yet the long‐term ozone trend in East Asia and its driver(s)…”
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Wavelet analysis of the atmospheric flows over real urban morphology by Liu, Yixun, Liu, Chun-Ho, Brasseur, Guy P., Chao, Christopher Y.H.

“…Winds are the basic forces for atmospheric transport such as pollutant removal and pedestrian thermal comfort. The transport capability is commonly measured in…”
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Lung cancer mortality and exposure to atmospheric aerosol particles in Guangzhou, China by Tie, Xuexi, Wu, Dui, Brasseur, Guy

“…In recent years, China and other emerging countries have been experiencing severe air pollution problems with high concentrations of atmospheric aerosol…”
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Does Downscaling Improve the Performance of Urban Ozone Modeling? by Wang, Yuting, Brasseur, Guy P., Ma, Yong‐Feng, Peuch, Vincent‐Henri, Wang, Tao

“…Increasing the model resolution is expected to be one way for improving air quality forecasts in urban areas. In this study, we evaluate the model performance…”
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The effect of cross-regional transport on ozone and particulate matter pollution in China: A review of methodology and current knowledge by Qu, Kun, Yan, Yu, Wang, Xuesong, Jin, Xipeng, Vrekoussis, Mihalis, Kanakidou, Maria, Brasseur, Guy P., Lin, Tingkun, Xiao, Teng, Cai, Xuhui, Zeng, Limin, Zhang, Yuanhang

“…China is currently one of the countries impacted by severe atmospheric ozone (O3) and particulate matter (PM) pollution. Due to their moderately long…”
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Turbulent flow modification in the atmospheric surface layer over a dense city by Yao, Lan, Liu, Chun-Ho, Brasseur, Guy P., Chao, Christopher Y.H.

“…Winds in the atmospheric surface layer (ASL) over distinctive urban morphology are investigated by building-resolved large-eddy simulation (LES). The…”
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Is atmospheric oxidation capacity better in indicating tropospheric O3 formation? by Wang, Peng, Zhu, Shengqiang, Vrekoussis, Mihalis, Brasseur, Guy P., Wang, Shuxiao, Zhang, Hongliang

“…Tropospheric ozone (O 3 ) concentration is increasing in China along with dramatic changes in precursor emissions and meteorological conditions, adversely…”
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Observed sensitivities of PM2.5 and O3 extremes to meteorological conditions in China and implications for the future by Zhang, Xiaorui, Xiao, Xiang, Wang, Fan, Brasseur, Guy, Chen, Siyu, Wang, Jing, Gao, Meng

“…[Display omitted] •Surface winds and humidity are identified as key drivers for PM2.5 extremes in China, with greater sensitivities at higher…”
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Empirical mode decomposition of the atmospheric flows and pollutant transport over real urban morphology by Liu, Yixun, Liu, Chun-Ho, Brasseur, Guy P., Chao, Christopher Y.H.

“…The momentum transport and pollutant dispersion in the atmospheric surface layer (ASL) are governed by a broad spectrum of turbulence structures. Whereas,…”
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Is atmospheric oxidation capacity better in indicating tropospheric O 3 formation? by Wang, Peng, Zhu, Shengqiang, Vrekoussis, Mihalis, Brasseur, Guy P., Wang, Shuxiao, Zhang, Hongliang

“…● This study summarizes and evaluates different approaches that indicate O 3 formation. ● Isopleth and sensitivity methods are useful but have many…”
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The atmospheric oxidizing capacity in China – Part 1: Roles of different photochemical processes by Dai, Jianing, Brasseur, Guy P, Vrekoussis, Mihalis, Kanakidou, Maria, Qu, Kun, Zhang, Yijuan, Zhang, Hongliang, Wang, Tao

“…Atmospheric oxidation capacity (AOC) characterizes the ability of the atmosphere to scavenge air pollutants. However, the processes involved in China, where…”
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The impact of inhomogeneous emissions and topography on ozone photochemistry in the vicinity of Hong Kong Island by Wang, Yuting, Ma, Yong-Feng, Muñoz-Esparza, Domingo, Li, Cathy W. Y, Barth, Mary, Wang, Tao, Brasseur, Guy P

“…Global and regional chemical transport models of the atmosphere are based on the assumption that chemical species are completely mixed within each model grid…”
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Stereoscopic Monitoring: A Promising Strategy to Advance Diagnostic and Prediction of Air Pollution by Liu, Cheng, Gao, Meng, Hu, Qihou, Brasseur, Guy P., Carmichael, Gregory R.

“…Monitoring and modeling/predicting air pollution are crucial to understanding the links between emissions and air pollution levels, to supporting air quality…”
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Statistical analysis of the organized turbulence structure in the inertial and roughness sublayers over real urban area by building-resolved large-eddy simulation by Yao, Lan, Liu, Chun-Ho, Mo, Ziwei, Cheng, Wai-Chi, Brasseur, Guy P., Chao, Christopher Y.H.

“…Dynamics and organized turbulence structure in the atmospheric boundary layer (ABL) over a real urban area, Mong Kok neighborhood in Kowloon Peninsula, Hong…”
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Response of surface ozone concentration to emission reduction and meteorology during the COVID‐19 lockdown in Europe by Deroubaix, Adrien, Brasseur, Guy, Gaubert, Benjamin, Labuhn, Inga, Menut, Laurent, Siour, Guillaume, Tuccella, Paolo

“…The lockdown period (March–May 2020) during the COVID‐19 pandemic in Europe led to a reduction in the anthropogenic emissions of primary pollutants. For…”
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Segregation of Atmospheric Oxidants in Turbulent Urban Environments by Wang, Yuting, Brasseur, Guy P., Wang, Tao

“…In the atmospheric boundary layer that is affected by turbulent motions and inhomogeneous surface chemical emissions, short-lived reactive species may not be…”
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Evaluation of the CAMS global atmospheric trace gas reanalysis 2003–2016 using aircraft campaign observations by Wang, Yuting, Ma, Yong-Feng, Eskes, Henk, Inness, Antje, Flemming, Johannes, Brasseur, Guy P.

“…The Copernicus Atmosphere Monitoring Service (CAMS) operated by the European Centre for Medium-Range Weather Forecasts (ECMWF) has produced a global reanalysis…”
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