Results 41 to 50 of about 1,285,093 (191)

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

Impacts of additional HONO sources on O3 and PM2.5 chemical coupling and control strategies in the Beijing–Tianjin–Hebei region of China [PDF]

Tellus: Series B, Chemical and Physical Meteorology, 2015
The objective of this work is to examine the impacts of additional HONO sources on the chemical interaction between ozone (O3) and particulate matter with a diameter≤2.5 µm (PM2.5). Three additional HONO sources, i.e.
Ying Li, Junling An, Mizuo Kajino, Ismail Gultepe, Yong Chen, Tao Song, Jinyuan Xin   +6 more
doaj   +1 more source

Chemical Characteristics and Potential Sources of PM2.5 in Shahe City during Severe Haze Pollution Episodes in the Winter

Aerosol and Air Quality Research, 2020
In recent years, North China has suffered from severe air pollution. Hence, this study performed a comprehensive field experiment during Dec. 2017 in Shahe (114.5°N, 36.85°E), a typical industrial city in this region that is characterized by intensive ...
Xiaoyong Liu, Xiaole Pan, Zifa Wang, Hong He, Dawei Wang, Hang Liu, Yu Tian, Weiling Xiang, Jie Li   +8 more
doaj   +1 more source

On Reflection of Shock Waves from Boundary Layers [PDF]

, 1952
Measurements of the reflection characteristics of shock waves from a flat surface with a laminar and turbulent boundary layer are presented. The investigations were carried out at Mach numbers from about 1.3 to 1.5 and a Reynolds number of 0.9 x 10^4.
Dhawan, S., Liepmann, H. W., Roshko, A.
core   +1 more source

Boundary layer emission and Z-track in the color-color diagram of luminous LMXBs

, 2005
We demonstrate that Fourier-frequency resolved spectra of atoll and Z- sources are identical, despite significant difference in their average spectra and luminosity (by a factor of ~10-20).
Asai, Barret, Bhattacharyya, Bradshaw, Bradt, Crampton, Di Salvo, Dieter, Done, Ebisawa, Fomalont, Gilfanov, Gilfanov, Goldman, Grebenev, Haberl, Hasinger, Hasinger, Homan, Iaria, Inogamov, Jonker, Kahn, Kuulkers, Kuulkers, Langmeier, Lewin, Lewin, London, M. G. Revnivtsev, M. R. Gilfanov, Magdziarz, Marshall, Mendez, Mendez, Mendez, Miller, Mitsuda, Mitsuda, Orosz, Penninx, Piraino, Popham, Psaltis, Revnivtsev, Revnivtsev, Revnivtsev, Ross, Shakura, Shakura, Shakura, Shimura, Sibgatullin, Steeghs, Strohmayer, Sunyaev, Sunyaev, Syunyaev, Tanaka, Titarchuk, Titarchuk, Toor, van der Klis, van der Klis, van der Klis, Vaughan, Vaughan, Vrtilek, White   +68 more
core   +2 more sources

Quantitative study on the water vapor transport characteristics of an extreme precipitation event in North China

Atmospheric Science Letters
North China experienced an extreme precipitation event from July 29 to August 1, 2023 (i.e., the “23.7” event) causing severe floods, significant infrastructure damage and multiple fatalities.
Xiaofan Li, Yufei Chang, Changwen Yu, Zhiqiang Gong, Yunhao Li, Zhongjie Zhang, Shaojing Che   +6 more
doaj   +1 more source

Effects of Regional Transport on Haze in the North China Plain: Transport of Precursors or Secondary Inorganic Aerosols

Geophysical Research Letters, 2020
Most previous studies treat regional transport of aerosols as a whole, without distinguishing the transport of secondary aerosols and that of their precursors.
Huiyun Du, Jie Li, Zifa Wang, Xu Dao, Song Guo, Lingling Wang, Shuangliang Ma, Jianbin Wu, Wenyi Yang, Xueshun Chen, Yele Sun   +10 more
doaj   +1 more source

Modeling chemistry in and above snow at Summit, Greenland – Part 2: Impact of snowpack chemistry on the oxidation capacity of the boundary layer [PDF]

, 2012
The chemical composition of the boundary layer in snow covered regions is impacted by chemistry in the snowpack via uptake, processing, and emission of atmospheric trace gases.
Dibb, Jack E., Huey, L Gregory, Lefer, Barry, Liao, J, Stutz, J, Tanner, D, Thomas, J L, von Glasow, R   +7 more
core   +1 more source

The moist boundary layer under a mid-latitude weather system [PDF]

, 2010
Mid-latitude weather systems are key contributors to the transport of atmospheric water vapour, but less is known about the role of the boundary layer in this transport.
Beare, R.J., Belcher, Stephen Ernest, Boutle, Ian, Brown, A.R, Plant, Robert Stephen   +4 more
core   +1 more source