Frontiers in Earth Science, 2023 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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Chemical characterization and source identification of PM2.5 at multiple sites in the Beijing–Tianjin–Hebei region, China [PDF]
Atmospheric Chemistry and Physics, 2017 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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A ‘receptive’ boundary layer [PDF]
Journal of Fluid Mechanics, 2010 Receptivity is the process which describes how environmental disturbances (such as gusts, acoustic waves or wall roughness) are filtered by a boundary layer and turned into downstream-growing waves. It is closely related to the identification of initial conditions for the disturbances and requires knowledge of the characteristics of the specific ...
openaire +2 more sources
Extreme fluctuations of vertical velocity in the unstable atmospheric surface layer [PDF]
Nonlinear Processes in Geophysics, 2014 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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Insights into aerosol chemistry during the 2015 China Victory Day parade: results from simultaneous measurements at ground level and 260 m in Beijing [PDF]
Atmospheric Chemistry and Physics, 2017 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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Experimental study of granular surface flows via a fast camera: a continuous description [PDF]
, 2001 Depth averaged conservation equations are written for granular surface flows. Their application to the study of steady surface flows in a rotating drum allows to find experimentally the constitutive relations needed to close these equations from ...
Bouchaud J.-Ph +5 more
core +4 more sources
Towards Adaptive Grids for Atmospheric Boundary-Layer Simulations
Boundary-layer Meteorology, 2018 We present a proof-of-concept for the adaptive mesh refinement method applied to atmospheric boundary-layer simulations. Such a method may form an attractive alternative to static grids for studies on atmospheric flows that have a high degree of scale ...
J. Hooft +6 more
semanticscholar +1 more source
Geophysical Research Letters, 2019 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
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Impact of emission controls on air quality in Beijing during APEC 2014: lidar ceilometer observations [PDF]
Atmospheric Chemistry and Physics, 2015 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
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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]
Atmospheric Chemistry and Physics, 2020 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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