气候变化领域集成服务门户(CCPortal): Evaluation of extreme temperature in multi-RCM simulations over CORDEX-East Asia phase II domain

CCPortal

DOI	10.1016/j.atmosres.2021.105535
	Evaluation of extreme temperature in multi-RCM simulations over CORDEX-East Asia phase II domain
	Yu K.; Hui P.; Zhou W.; Tang J.
发表日期	2021
ISSN	0169-8095
卷号	255
英文摘要	In this study, the extreme temperature in high-resolution hindcast simulations conducted by three reanalysis-driven regional climate models (WRF, RegCM4 and CCLM) is evaluated during the period of 1989–2009. We select 10 extreme temperature indices recommended by the Expert Team on Climate Change Detection and Indices to compare the simulations with the CN05.1 dataset. In addition, apparent temperature (AT) combining relative humidity and air temperature is applied to define the humid heat wave indices. The results show that the regional climate models (RCMs) can skillfully reproduce the spatial distribution and the probability density function of daily maximum temperature (Tmax) and minimum temperature (Tmin) in spite of some biases in certain ranges and regions. For the intensity indices (TXx, TNn, TXn, TNx), the RCMs demonstrate very high spatial correlations with the observation, but they have difficulties in reproducing the interannual variations of these indices. CCLM best simulates the interannual variabilities of the percentile-based indices, while WRF shows better skill in reproducing their spatial patterns (TX10p, TX90p). In regard to the duration indices, RegCM4 outperforms WRF and CCLM in simulating the consecutive cold events (CSDI), while WRF performs best for the continuous hot days (WSDI). The humid heat wave, which is characterized by both high temperature and humidity, is skillfully reproduced by the RCMs as well. The overestimation of the magnitude and intensity of humid heat waves in WRF can be attributed to the favorable large-scale circulation and water vapor condition. © 2021 Elsevier B.V.
英文关键词	East Asia; Extreme temperature; Humid heat wave; Regional climate model
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/236804
作者单位	Key Laboratory of Mesoscale Severe Weather, Ministry of Education, Nanjing University, Nanjing, 210023, China; School of Atmospheric Sciences, Nanjing University, Nanjing, 210023, China; Jiangsu Climate Center, Jiangsu Provincial Meteorological Bureau, Nanjing, 210009, China
推荐引用方式 GB/T 7714	Yu K.,Hui P.,Zhou W.,et al. Evaluation of extreme temperature in multi-RCM simulations over CORDEX-East Asia phase II domain[J],2021,255.
APA	Yu K.,Hui P.,Zhou W.,&Tang J..(2021).Evaluation of extreme temperature in multi-RCM simulations over CORDEX-East Asia phase II domain.Atmospheric Research,255.
MLA	Yu K.,et al."Evaluation of extreme temperature in multi-RCM simulations over CORDEX-East Asia phase II domain".Atmospheric Research 255(2021).