The Impacts of Different PBL Schemes on the Simulation of PM2.5 during Severe Haze Episodes in the Jing-Jin-Ji Region and Its Surroundings in China
Joint Authors
Wang, Y. Q.
Zhao, Tianliang
Li, Tian
Wang, Hong
Xue, Min
Che, Huizheng
Jiang, Chao
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-06-07
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
In this study, three schemes [Yonsei University (YSU), Mellor-Yamada-Janjic (MYJ), and Bougeault-Lacarrère (Boulac)] were employed in the Weather Research and Forecasting/Chemistry (WRF-Chem) model to simulate the severe haze that occurred in February 2014 in the Jing-Jin-Ji region and its surroundings.
The PM2.5 concentration simulated using the three schemes, together with the meteorological factors closely related to PM2.5 (wind speed, local vertical diffusivity, and PBL height), was evaluated through comparison with observations.
The results indicated that the eastern plain cities produced better simulation results than the western cities, and the cities under the eastern root of Taihang Mountain produced the worst results in simulating high PM2.5 concentration in haze.
All three schemes simulated very similar variation trends of the surface PM2.5 concentration compared with observations.
The diurnal variations of simulated surface PM2.5 were not as reasonable as their reflection of daily averaged variation.
The simulated concentrations of surface PM2.5 using the YSU, MYJ, and Boulac schemes all showed large negative errors during daytime in polluted days due to their inefficient descriptions of local atmospheric stability or diffusion processes in haze.
The lower ability of PBL schemes in distinguishing the diffusion between haze and clean days in the complex topography areas in China is an important problem for PM2.5 forecasting, which is worthy of being studied in detail.
American Psychological Association (APA)
Li, Tian& Wang, Hong& Zhao, Tianliang& Xue, Min& Wang, Y. Q.& Che, Huizheng…[et al.]. 2016. The Impacts of Different PBL Schemes on the Simulation of PM2.5 during Severe Haze Episodes in the Jing-Jin-Ji Region and Its Surroundings in China. Advances in Meteorology،Vol. 2016, no. 2016, pp.1-15.
https://search.emarefa.net/detail/BIM-1095576
Modern Language Association (MLA)
Li, Tian…[et al.]. The Impacts of Different PBL Schemes on the Simulation of PM2.5 during Severe Haze Episodes in the Jing-Jin-Ji Region and Its Surroundings in China. Advances in Meteorology No. 2016 (2016), pp.1-15.
https://search.emarefa.net/detail/BIM-1095576
American Medical Association (AMA)
Li, Tian& Wang, Hong& Zhao, Tianliang& Xue, Min& Wang, Y. Q.& Che, Huizheng…[et al.]. The Impacts of Different PBL Schemes on the Simulation of PM2.5 during Severe Haze Episodes in the Jing-Jin-Ji Region and Its Surroundings in China. Advances in Meteorology. 2016. Vol. 2016, no. 2016, pp.1-15.
https://search.emarefa.net/detail/BIM-1095576
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1095576