气候变化领域集成服务门户(CCPortal): Lake-atmosphere exchange impacts ozone simulation around a large shallow lake with large cities

CCPortal

DOI	10.1016/j.atmosenv.2020.118086
	Lake-atmosphere exchange impacts ozone simulation around a large shallow lake with large cities
	Wang F.; Li Q.; Wang Y.
发表日期	2021
ISSN	1352-2310
卷号	246
英文摘要	Weather Research and Forecast model coupled with Chemistry (WRF-Chem) coupled with CLM4.5 lake model is used to understand the impacts of lake-atmosphere exchange on ozone concentration in the Lake Taihu region during a high temperature and high ozone concentration event. About 8 °C bias in lake surface temperature simulated by different lake schemes significantly change the structure and evolution of the lake-land breeze system. As a result, the vertical and horizontal advection directly impacts distribution of ozone around and over the lake in early morning, the difference in ozone concentration is 20–60 μg m−3. Location of the lake breeze front and development of the thermal inner boundary layer around midday are also highly sensitive to the lake-atmosphere exchange. In addition, difference in the local circulation patterns leads to distinct spatial distributions of NOx, an ozone precursor, in regions downwind of their emission sources, especially along the Yangtze River. In response, ozone concentration in this region is drastically changed (about 80 μg m−3) due to the combined actions of transport and chemical reactions. Overall, this study highlights that in regions with spatially extensive shallow lakes with megacities, it is important to accurately represent the lake-atmosphere exchange for ozone pollution simulations, especially under high-temperature and light-wind conditions, in which ozone high concentration events occur frequently and effects of the local lake breeze are expected to dominate. © 2020 The Authors
关键词	Lake scheme Lake Taihu Lake-atmosphere exchange Ozone simulation WRF-Chem
语种	英语
scopus关键词	Atmospheric chemistry; Atmospheric temperature; Boundary layers; Ozone; Ozone layer; River pollution; Weather forecasting; Circulation patterns; Emission sources; High temperature; Horizontal advection; Lake surface temperature; Ozone concentration; Ozone precursors; Weather Research and Forecast models; Lakes; ozone; atmospheric pollution; boundary layer; concentration (composition); environmental monitoring; high temperature; lacustrine environment; megacity; ozone; water temperature; weather forecasting; air pollution; atmosphere; chemical reaction; high temperature; ion exchange; lake; nonhuman; ozone layer; priority journal; China; Taihu Lake; Yangtze River
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248711
作者单位	Yale - NUIST Center on Atmospheric Environment, Nanjing University of Information Science and Technology, Nanjing, 210044, China; School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing, 210044, China; School of Civil and Environmental Engineering, Cornell University, Ithaca, NY 14853, United States
推荐引用方式 GB/T 7714	Wang F.,Li Q.,Wang Y.. Lake-atmosphere exchange impacts ozone simulation around a large shallow lake with large cities[J],2021,246.
APA	Wang F.,Li Q.,&Wang Y..(2021).Lake-atmosphere exchange impacts ozone simulation around a large shallow lake with large cities.ATMOSPHERIC ENVIRONMENT,246.
MLA	Wang F.,et al."Lake-atmosphere exchange impacts ozone simulation around a large shallow lake with large cities".ATMOSPHERIC ENVIRONMENT 246(2021).