干旱区生态环境知识资源中心(Arid): Temperature changes in the Heihe River Basin based on high accuracy surface modelling

Arid

DOI	10.1002/met.1803
	Temperature changes in the Heihe River Basin based on high accuracy surface modelling
	Liu, Yu; Yue, Tianxiang; Jiao, Yimeng; Zhao, Na; Zhao, Miaomiao
通讯作者	Liu, Y (corresponding author), 11A Datun Rd, Beijing 100101, Peoples R China.
来源期刊	METEOROLOGICAL APPLICATIONS
ISSN	1350-4827
EISSN	1469-8080
出版年	2019
卷号	26 期号:4 页码:720-732
英文摘要	In the context of global warming, significant differences in temperature changes occur in different regions. Obtaining a more accurate temperature distribution is important for studying regional climate change. A high accuracy surface modeling (HASM) was introduced using the air temperature output from the weather research and forecasting (WRF) model as the driving field, and observation data from meteorological stations as the accuracy control conditions to obtain 30 years of high accuracy temperature fields in the Heihe River Basin. Verified by ground-based observations, the WRF model has a limited ability to simulate temperature conditions and performs worse in low altitude areas and in winter. The fusion results of the HASM decrease the mean absolute error from 2.21 to 0.9 degrees C and decrease the root mean square error from 2.58 to 1.16 degrees C, thus significantly increasing the accuracy compared with the original simulation from the WRF model and resulting in a more reasonable temperature analysis. The Mann-Kendall test shows clear warming in the Heihe River Basin, but there is a mutation year of 1998 in winter and annual average. The space-time distributions of and variations in the temperature from the HASM results are also analysed by dividing the study period into three subperiods. The analysis shows consistent warming except for the winter 2001-2010 period compared with the winter 1991-2000 period, in which the northeast area of the lower reaches of the Heihe River Basin was cool. Temperature changes in the Heihe River Basin also show that the sparsely populated Gobi Desert in the north and the southern high mountains show extreme sensitivity to climate change.
英文关键词	HASM Heihe River Basin temperature WRF
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000525751800017
WOS关键词	SPATIAL INTERPOLATION METHODS ; TIANJIN-HEBEI REGION ; PRECIPITATION ; SCALE
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369598
作者单位	[Liu, Yu; Yue, Tianxiang; Zhao, Na; Zhao, Miaomiao] Chinese Acad Sci, State Key Lab Resources & Environm Informat Syst, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China; [Liu, Yu; Yue, Tianxiang; Zhao, Na; Zhao, Miaomiao] Univ Chinese Acad Sci, Beijing, Peoples R China; [Jiao, Yimeng] China Univ Geosci Beijing, Sch Earth Sci & Resources, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yu,Yue, Tianxiang,Jiao, Yimeng,et al. Temperature changes in the Heihe River Basin based on high accuracy surface modelling[J]. 中国科学院地理科学与资源研究所,2019,26(4):720-732.
APA	Liu, Yu,Yue, Tianxiang,Jiao, Yimeng,Zhao, Na,&Zhao, Miaomiao.(2019).Temperature changes in the Heihe River Basin based on high accuracy surface modelling.METEOROLOGICAL APPLICATIONS,26(4),720-732.
MLA	Liu, Yu,et al."Temperature changes in the Heihe River Basin based on high accuracy surface modelling".METEOROLOGICAL APPLICATIONS 26.4(2019):720-732.