气候变化领域集成服务门户(CCPortal): Impacts of TIPEX-III Rawinsondes on the Dynamics and Thermodynamics Over the Eastern Tibetan Plateau in the Boreal Summer

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DOI	10.1029/2020JD032635
	Impacts of TIPEX-III Rawinsondes on the Dynamics and Thermodynamics Over the Eastern Tibetan Plateau in the Boreal Summer
	Li J.; Chen J.; Lu C.; Wu X.
发表日期	2020
ISSN	2169897X
卷号	125 期号:13
英文摘要	Observations and simulations have shown that the Tibetan Plateau (TP) plays an important role in the climate and weather of East Asia. Uncertainties in reanalysis data sets have been documented by comparing them with independent rawinsonde data, but the impacts of incorporating this data into a reanalysis data set on the dynamical and thermodynamical features over the TP have not been assessed. Observations from the recent Third Tibetan Plateau Atmospheric Scientific Experiment (TIPEX-III) can be used to evaluate the Eastern TP ERA-Interim reanalysis data set (ERA). In this study, the Barnes objective analysis scheme is used to incorporate the rawinsonde data into the ERA to acquire the gridded data (OBJ) for examining heat and moisture budgets. It is shown that the OBJ budget-estimated rainfall intensity is better correlated with the observations than the ERA budget-estimated rainfall intensity. The ERA overestimates weak rainfall but underestimates heavy rainfall. The incorporation of special rawinsonde into the OBJ impacts the dynamical and thermodynamical characteristics both spatially and temporally. The downward motion and cooling are enhanced over the rainless regions/periods, while the upward motion and heating are enhanced over the rainy regions/periods. The rawinsonde effect is stronger with the increasing rainfall intensity. The differences of spatial distributions and temporal variations in heating between the OBJ and ERA are primarily determined by the vertical advection terms in heat and moisture budgets. The OBJ-derived large-scale forcing is essential for cloud-resolving model simulations of TP cloud systems. The above conclusions can also be applied to the ERA5. ©2020. American Geophysical Union. All Rights Reserved.
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/185913
作者单位	Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing, China; Key Laboratory of Meteorology and Ecological Environment of Hebei Province, Shijiazhuang, China; Plateau Atmosphere and Environment Key Laboratory of Sichuan Province, Chengdu, China; Department of Geological and Atmospheric Sciences, Iowa State University, Ames, IA, United States
推荐引用方式 GB/T 7714	Li J.,Chen J.,Lu C.,et al. Impacts of TIPEX-III Rawinsondes on the Dynamics and Thermodynamics Over the Eastern Tibetan Plateau in the Boreal Summer[J],2020,125(13).
APA	Li J.,Chen J.,Lu C.,&Wu X..(2020).Impacts of TIPEX-III Rawinsondes on the Dynamics and Thermodynamics Over the Eastern Tibetan Plateau in the Boreal Summer.Journal of Geophysical Research: Atmospheres,125(13).
MLA	Li J.,et al."Impacts of TIPEX-III Rawinsondes on the Dynamics and Thermodynamics Over the Eastern Tibetan Plateau in the Boreal Summer".Journal of Geophysical Research: Atmospheres 125.13(2020).