Results 21 to 30 of about 430,250 (306)

Comparison Experiment for Rainfall Observation of Micro-smart Weather Stations

应用气象学报, 2023
In order to enhance the understanding of rainfall observation performance of micro-smart (integrated) weather stations and to promote the application in rainfall observation operations, a comparative experiment for the rainfall observation of radar ...
Wang Zhenchao, Chen Xuejiao, Liu Shu, Hua Jiajia, Liu Wenzhong   +4 more
doaj   +1 more source

THE MARTIAN ATMOSPHERIC BOUNDARY LAYER [PDF]

Reviews of Geophysics, 2011
The planetary boundary layer (PBL) represents the part of the atmosphere that is strongly influenced by the presence of the underlying surface and mediates the key interactions between the atmosphere and the surface. On Mars, this represents the lowest 10 km of the atmosphere during the daytime.
Petrosyan, A., Galperin, B., Larsen, S. E., Lewis, S., Määttänen, Anni, Read, P. L., Rennó, N., Rogberg, L. P. H. T., Savijärvi, H., Siili, T., Spiga, A., Toigo, A., Vazquez, L.   +12 more
openaire   +3 more sources

Characteristics and sources of submicron aerosols above the urban canopy (260 m) in Beijing, China, during the 2014 APEC summit [PDF]

Atmospheric Chemistry and Physics, 2015
The megacity of Beijing has experienced frequent severe fine particle pollution during the last decade. Although the sources and formation mechanisms of aerosol particles have been extensively investigated on the basis of ground measurements, real-time ...
C. Chen, Y. L. Sun, W. Q. Xu, W. Du, L. B. Zhou, T. T. Han, Q. Q. Wang, P. Q. Fu, Z. F. Wang, Z. Q. Gao, Q. Zhang, D. R. Worsnop   +11 more
doaj   +1 more source

Assessing biogeochemical effects and best management practice for a wheat–maize cropping system using the DNDC model [PDF]

Biogeosciences, 2014
Contemporary agriculture is shifting from a single-goal to a multi-goal strategy, which in turn requires choosing best management practice (BMP) based on an assessment of the biogeochemical effects of management alternatives.
F. Cui, X. Zheng, C. Liu, K. Wang, Z. Zhou, J. Deng   +5 more
doaj   +1 more source

Characterization of submicron aerosols during a month of serious pollution in Beijing, 2013 [PDF]

Atmospheric Chemistry and Physics, 2014
In January 2013, Beijing experienced several serious haze events. To achieve a better understanding of the characteristics, sources and processes of aerosols during this month, an Aerodyne high-resolution time-of-flight aerosol mass spectrometer (HR-ToF ...
J. K. Zhang, Y. Sun, Z. R. Liu, D. S. Ji, B. Hu, Q. Liu, Y. S. Wang   +6 more
doaj   +1 more source

Aerosol physicochemical properties and implications for visibility during an intense haze episode during winter in Beijing [PDF]

Atmospheric Chemistry and Physics, 2015
The evolution of physical, chemical and optical properties of urban aerosol particles was characterized during an extreme haze episode in Beijing, PRC, from 24 through 31 January 2013 based on in situ measurements. The average mass concentrations of PM1,
Y. H. Wang, Z. R. Liu, J. K. Zhang, B. Hu, D. S. Ji, Y. C. Yu, Y. S. Wang   +6 more
doaj   +1 more source

Aerosol composition, oxidation properties, and sources in Beijing: results from the 2014 Asia-Pacific Economic Cooperation summit study [PDF]

Atmospheric Chemistry and Physics, 2015
The mitigation of air pollution in megacities remains a great challenge because of the complex sources and formation mechanisms of aerosol particles. The 2014 Asia-Pacific Economic Cooperation (APEC) summit in Beijing serves as a unique experiment to ...
W. Q. Xu, Y. L. Sun, C. Chen, W. Du, T. T. Han, Q. Q. Wang, P. Q. Fu, Z. F. Wang, X. J. Zhao, L. B. Zhou, D. S. Ji, P. C. Wang, D. R. Worsnop   +12 more
doaj   +1 more source

Quantifying the Source Contributions to Poor Atmospheric Visibility in Winter over the Central Plains Economic Region in China

Atmosphere, 2022
The Central Plains Economic Region (CPER) is one of the most polluted regions in China. Air pollution has caused visibility degradation due to the light extinction of fine particles (PM2.5).
Huiyun Du, Jie Li, Xueshun Chen, Wenyi Yang, Zhe Wang, Zifa Wang   +5 more
doaj   +1 more source

The Atmospheric Boundary Layer and the “Gray Zone” of Turbulence: A Critical Review

Journal of Geophysical Research: Atmospheres, 2020
Recent increases in computing power mean that atmospheric models for numerical weather prediction are now able to operate at grid spacings of the order of a few hundred meters, comparable to the dominant turbulence length scales in the atmospheric ...
Rachel Honnert, G. Efstathiou, R. Beare, J. Ito, A. Lock, R. Neggers, R. Plant, H. Shin, L. Tomassini, Bowen Zhou   +9 more
semanticscholar   +1 more source

Evaluation of Ozone Formation Potential of Formaldehyde Using Smog Chamber Data

Aerosol and Air Quality Research, 2023
Formaldehyde (HCHO) is one of the important O3 precursors in the atmospheric environment, but the mechanism for HCHO photochemical reactions is not very clear now. In the present study, the effects of relative humidity (RH) and initial VOC/NOx ratio (RCN)
Hailiang Zhang, Yongfu Xu, Long Jia
doaj   +1 more source