Impacts of an unknown daytime HONO source on the mixing ratio and budget of HONO, and hydroxyl, hydroperoxyl, and organic peroxy radicals, in the coastal regions of China [PDF]
Many field experiments have found high nitrous acid (HONO) mixing ratios in both urban and rural areas during daytime, but these high daytime HONO mixing ratios cannot be explained well by gas-phase production, HONO emissions, and nighttime hydrolysis ...
Y. Tang +6 more
doaj +1 more source
Under the wintertime background of westerly flows, heavy rainfall often occurs first over southwestern China and then spreads eastward downstream to southeastern China, causing serious impact on a large scope of southern China.
Juyue Yin +8 more
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Extreme fluctuations of vertical velocity in the unstable atmospheric surface layer [PDF]
In this paper, we propose a new method to extract the extreme fluctuations of vertical velocity in the unstable atmospheric surface layer. Unlike the commonly used conditional sampling analysis, this method defines a threshold by using a systematical ...
L. Liu, F. Hu, X.-L. Cheng
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Chemical characterization and source identification of PM2.5 at multiple sites in the Beijing–Tianjin–Hebei region, China [PDF]
The simultaneous observation and analysis of atmospheric fine particles (PM2.5) on a regional scale is an important approach to develop control strategies for haze pollution.
X. Huang +13 more
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Insights into aerosol chemistry during the 2015 China Victory Day parade: results from simultaneous measurements at ground level and 260 m in Beijing [PDF]
Strict emission controls were implemented in Beijing and adjacent provinces to ensure good air quality during the 2015 China Victory Day parade. Here, we conducted synchronous measurements of submicron aerosols (PM1) at ground level and 260 m on a ...
J. Zhao +11 more
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Boundary and interior layers [PDF]
The second international conference on boundary and interior layers – computational and asymptotic methods, BAIL II – was held at Trinity College, Dublin, Ireland, on 16–18 June 1982, under the auspices of the College's Numerical Analysis Group. It was cosponsored by the American Institute of Aeronautics and Astronautics, the American Meteorological ...
openaire +1 more source
Cooking organic aerosol (COA) constitutes a considerable fraction of organic aerosol (OA) in urban environments, yet it is often challenging to resolve COA in summer through positive matrix factorization of unit mass resolution spectra of OA from aerosol
Yao He +13 more
doaj +1 more source
Effects of fertilization and stand age on N2O and NO emissions from tea plantations: a site-scale study in a subtropical region using a modified biogeochemical model [PDF]
To meet increasing demands, tea plantations are rapidly expanding in China. Although the emissions of nitrous oxide (N2O) and nitric oxide (NO) from tea plantations may be substantially influenced by soil pH reduction and intensive nitrogen fertilization,
W. Zhang +10 more
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Impact of emission controls on air quality in Beijing during APEC 2014: lidar ceilometer observations [PDF]
The implementation of emission reductions during the 2014 Asia-Pacific Economic Cooperation (APEC) summit provides a valuable opportunity to study air pollution in Beijing.
G. Tang +7 more
doaj +1 more source
Diagnosis of a Regional Thundersnow in Beijing, Tianjin and Hebei in February 2024
The generation mechanism of extreme snowfall and convective snowfall in Beijing-Tianjin-Hebei region of China from 20 February to 21 February in 2024 are analyzed with high-resolution observations and the fifth-generation European Centre for Medium-Range
Suo Chunnan +6 more
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