Results 41 to 50 of about 3,286,536 (303)

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, X. Zhu, B. Hu, J. Xin, L. Wang, C. Münkel, G. Mao, Y. Wang   +7 more
doaj   +1 more source

Evaluation of limited-area models for the representation of the diurnal cycle and contrasting nights in CASES-99 [PDF]

, 2008
This study evaluates the ability of three limited-area models [the fifth-generation Pennsylvania State University¿National Center for Atmospheric Research Mesoscale Model (MM5), the Coupled Ocean¿Atmosphere Mesoscale Prediction System (COAMPS), and the ...
Bruijn, E.I.F., de, Svensson, G., Holtslag, A.A.M., Steeneveld, G.J., Steeneveld, G. J., Mauritsen, T., de Bruijn, E.I.F., Svensson, Gunilla,, Vilà-Guerau de Arellano, J., Mauritsen, Thorsten,   +9 more
core   +1 more source

On The Atmospheric Boundary Layer Flow Modelling [PDF]

PAMM, 2004
AbstractThe paper presents a mathematical and numerical investigation of the flow in the atmospheric boundary layer (ABL) over complex topography. The flow is supposed to be viscous, incompressible, turbulent and stationary. Two different mathematical–numerical approaches are briefly mentioned.
Sládek, I., Kozel, K., Jaňour, Z.
openaire   +2 more sources

Large-Eddy Simulation of the Stable Atmospheric Boundary Layer using Dynamic Models with Different Averaging Schemes

, 2007
Large-eddy simulation (LES) of a stable atmospheric boundary layer is performed using recently developed dynamic subgrid-scale (SGS) models. These models not only calculate the Smagorinsky coefficient and SGS Prandtl number dynamically based on the ...
Stoll, R, Porté-Agel, F., O Porté-agel, Boundary-layer Meteorol, Rob Stoll Fern   +4 more
core   +1 more source

S-band and X-band Radar Observation Characteristics of EF2 Tornado at Qingyuan of Baoding in 2021

应用气象学报
Using multiple observations such as S-band radar (SPOL) in Shijiazhuang, X-band phased array radar (XPAR) in Xiong'an, and ground-based encrypted automatic stations, detection features and evolutions of EF2 tornado at Donglü Village, Qingyuan District of
Chen Xuejiao, Hua Jiajia, Pei Yujie, Wang Zhenchao, Liu Shu, Liu Shujun, Wang Fuxia   +6 more
doaj   +1 more source

Diagnosis of a Regional Thundersnow in Beijing, Tianjin and Hebei in February 2024

应用气象学报
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, Yan Chunwang, Chen Junming, Hua Jiajia, Ma Fenglian, Ji Ce, Sun Mengmeng   +6 more
doaj   +1 more source

Improving photosynthate allocation dynamic simulations of crops under water stress conditions [PDF]

Geoscientific Model Development
Accurately simulating crop photosynthate allocation under water stress is critical for predicting both food security and ecosystem carbon inputs. Current crop models often rely on static or growth-stage-fixed allocation coefficients, which limits their ...
W. Xu, W. Xu, W. Zhang, Y. Yu, Q. Zhang
doaj   +1 more source

Real-time observational evidence of changing Asian dust morphology with the mixing of heavy anthropogenic pollution

Scientific Reports, 2017
Natural mineral dust and heavy anthropogenic pollution and its complex interactions cause significant environmental problems in East Asia. Due to restrictions of observing technique, real-time morphological change in Asian dust particles owing to coating
Xiaole Pan, Itsushi Uno, Zhe Wang, Tomoaki Nishizawa, Nobuo Sugimoto, Shigekazu Yamamoto, Hiroshi Kobayashi, Yele Sun, Pingqing Fu, Xiao Tang, Zifa Wang   +10 more
doaj   +1 more source

Haze pollution under a high atmospheric oxidization capacity in summer in Beijing: insights into formation mechanism of atmospheric physicochemical processes [PDF]

Atmospheric Chemistry and Physics, 2020
Under a high atmospheric oxidization capacity, the synergistic effect of the physicochemical processes in the atmospheric boundary layer (ABL) caused summer haze pollution in Beijing.
D. Zhao, D. Zhao, G. Liu, G. Liu, J. Xin, J. Xin, J. Xin, J. Quan, Y. Wang, X. Wang, L. Dai, W. Gao, G. Tang, B. Hu, Y. Ma, X. Wu, L. Wang, Z. Liu, F. Wu   +18 more
doaj   +1 more source

Large-scale intermittency in the atmospheric boundary layer [PDF]

Physical Review E, 2007
We find actual evidence, relying upon vorticity time series taken in a high Reynolds number atmospheric experiment, that to a very good approximation the surface boundary layer flow may be described, in a statistical sense and under certain regimes, as an advected ensemble of homogeneous turbulent systems, characterized by a lognormal distribution of ...
Kholmyansky, M., Moriconi, L., Tsinober, A.   +2 more
openaire   +3 more sources