气候变化领域集成服务门户(CCPortal): Diurnal Climatology of Planetary Boundary Layer Height Over the Contiguous United States Derived From AMDAR and Reanalysis Data

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DOI	10.1029/2020JD032803
	Diurnal Climatology of Planetary Boundary Layer Height Over the Contiguous United States Derived From AMDAR and Reanalysis Data
	Zhang Y.; Sun K.; Gao Z.; Pan Z.; Shook M.A.; Li D.
发表日期	2020
ISSN	2169897X
卷号	125 期号:20
英文摘要	The diurnal variation of the planetary boundary layer height (PBLH) over the contiguous United States (CONUS) is examined using Aircraft Meteorological Data Reports (AMDAR) at 54 major airports and the ERA5 reanalysis product. The bulk Richardson number method is used to derive the PBLH at hourly scales from the AMDAR profiles. It is found that the estimated PBLH is sensitive to the value of the critical bulk Richardson number and to the consideration of the surface friction effect, especially under stable and near-neutral conditions. Parameters constrained by field campaign observations are finally selected to estimate the PBLH. The results reveal that the diurnal climatology of PBLH exhibits seasonal and spatial variations, with greater diurnal variations in spring and summer and in the western regions. It is demonstrated that the traditional twice-daily radiosonde data may roughly capture the diurnal amplitude of PBLH in the western but not the eastern CONUS. Compared to the AMDAR data, the ERA5 reanalysis product overestimates the daytime PBLH throughout the CONUS by 18–41% and shows an earlier peak time by 1–2 hr in the western regions and a later peak time by 1 hr in the eastern regions. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	AMDAR; diurnal climatology; ERA5; planetary boundary layer height
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185698
作者单位	School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing, China; Department of Civil, Structural and Environmental Engineering and Research and Education in Energy, Environment and Water Institute, University at Buffalo, Buffalo, NY, United States; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Department of Earth and Atmospheric Sciences, Saint Louis University, St. Louis, MO, United States; NASA Langley Research Center, Hampton, VA, United States; Department of Earth and Environment, Boston University, Boston, MA, United States
推荐引用方式 GB/T 7714	Zhang Y.,Sun K.,Gao Z.,et al. Diurnal Climatology of Planetary Boundary Layer Height Over the Contiguous United States Derived From AMDAR and Reanalysis Data[J],2020,125(20).
APA	Zhang Y.,Sun K.,Gao Z.,Pan Z.,Shook M.A.,&Li D..(2020).Diurnal Climatology of Planetary Boundary Layer Height Over the Contiguous United States Derived From AMDAR and Reanalysis Data.Journal of Geophysical Research: Atmospheres,125(20).
MLA	Zhang Y.,et al."Diurnal Climatology of Planetary Boundary Layer Height Over the Contiguous United States Derived From AMDAR and Reanalysis Data".Journal of Geophysical Research: Atmospheres 125.20(2020).