Fusion of Simulated and Observational Temperature Data in the Beijing-Tianjin-Hebei Region Based on High-Accuracy Surface Modeling

doi:10.1155/2019/8709575

	Fusion of Simulated and Observational Temperature Data in the Beijing-Tianjin-Hebei Region Based on High-Accuracy Surface Modeling
	Liu, Yu 1,2; Yue, Tianxiang 1,2; Jiao, Yimeng 3; Zhao, Yapeng 1,2; Bao, Zhengyi 1,2
刊名	ADVANCES IN METEOROLOGY
	2019
页码	14
ISSN号	1687-9309
DOI	10.1155/2019/8709575
通讯作者	Liu, Yu(liuyu.15b@igsnrr.ac.cn)
英文摘要	Temperature changes have a major impact on all aspects of human society and have attracted global attention. The scarcity of observation data and the inaccuracy of the models make obtaining accurate temperature distributions a challenge. This study introduces high-accuracy surface modeling (HASM) combined with temperature simulations from the Weather Research and Forecasting (WRF) model and temperature records from observation stations to investigate the spatiotemporal characteristics of temperature in the Beijing-Tianjin-Hebei region during the period of 1956-2005. Leave-one-out cross-validation is applied to verify the temperature fields before and after the fusion of the models. The results indicate that the WRF model has a limited ability to simulate temperature conditions, but the overall deviation across the region is relatively large. The fusion results of the HASM decrease the mean absolute error (MAE) and the root-mean-square error (RMSE) by half in most instances, and the correlation between the fusion data and observation data is approximately 0.01-0.03 higher than that with the WRF simulation data. Based on the fusion data, obvious warming trends are observed during 1976-2005. In general, temperatures in spring, summer, and autumn increase rapidly from 1996 to 2005 but from 1976 to 1995 in winter. The substantial fluctuations in the interannual temperature during 1996-2005 in summer, autumn, and winter may be related to the frequent occurrence of extreme weather. The spatial distribution of temperature change differs in each season during 1956-1995. A dramatic increase in temperature occurs in the western part of the study area during 1996-2005 but with no seasonal difference.
资助项目	National Natural Science Foundation of China[41590844] ; National Natural Science Foundation of China[41421001] ; Innovation Project of LREIS[O88RA600YA]
WOS关键词	CHINA
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	HINDAWI LTD
WOS记录号	WOS:000464666100001
资助机构	National Natural Science Foundation of China ; Innovation Project of LREIS
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/48195]
专题	中国科学院地理科学与资源研究所
通讯作者	Liu, Yu
作者单位	1.Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.China Univ Geosci Beijing, Sch Earth Sci & Resources, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yu,Yue, Tianxiang,Jiao, Yimeng,et al. Fusion of Simulated and Observational Temperature Data in the Beijing-Tianjin-Hebei Region Based on High-Accuracy Surface Modeling[J]. ADVANCES IN METEOROLOGY,2019:14.
APA	Liu, Yu,Yue, Tianxiang,Jiao, Yimeng,Zhao, Yapeng,&Bao, Zhengyi.(2019).Fusion of Simulated and Observational Temperature Data in the Beijing-Tianjin-Hebei Region Based on High-Accuracy Surface Modeling.ADVANCES IN METEOROLOGY,14.
MLA	Liu, Yu,et al."Fusion of Simulated and Observational Temperature Data in the Beijing-Tianjin-Hebei Region Based on High-Accuracy Surface Modeling".ADVANCES IN METEOROLOGY (2019):14.