气候变化领域集成服务门户(CCPortal): Diagnostic metrics for evaluating model simulations of the east asian monsoon

CCPortal

DOI	10.1175/JCLI-D-18-0808.1
	Diagnostic metrics for evaluating model simulations of the east asian monsoon
	Li J.; Wang B.; Yang Y.-M.
发表日期	2020
ISSN	0894-8755
起始页码	1777
结束页码	1801
卷号	33 期号:5
英文摘要	The distinctive monsoon climate over East Asia, which is affected by the vast Eurasian continent and Pacific Ocean basin and the high-altitude Tibetan Plateau, provides arguably the best testbed for evaluating the competence of Earth system climate models. Here, a set of diagnostic metrics, consisting of 14 items and 7 variables, is specifically developed. This physically intuitive set of metrics focuses on the essential features of the East Asian summer monsoon (EASM) and East Asian winter monsoon (EAWM), and includes fields that depict the climatology, the major modes of variability, and unique characteristics of the EASM. The metrics are applied to multimodel historical simulations derived from 20 models that participated in phases 3 and 5 of the Coupled Model Intercomparison Project (CMIP3 and CMIP5, respectively), along with the newly developed Nanjing University of Information Science and Technology Earth System Model, version 3. The CMIP5 models show significant improvements over the CMIP3 models in terms of the simulated East Asian monsoon circulation systems on a regional scale, major modes of EAWM variability, the monsoon domain and precipitation intensity, and teleconnection associated with the heat source over the Philippine Sea. Clear deficiencies persist from CMIP3 to CMIP5 with respect to capturing the major modes of EASM variability, as well as the relationship between the EASM and ENSO during El Niño developing and decay phases. The possible origins that affect models' performance are also discussed. The metrics provide a tool for evaluating the performance of Earth system climate models, and facilitating the assessment of past and projected future changes of the East Asian monsoon. © 2020 American Meteorological Society.
英文关键词	Atmospheric thermodynamics; Climatology; Coupled Model Intercomparison Project; Earth system model; East Asian summer monsoon; East Asian winter monsoon; Essential features; Historical simulation; Precipitation intensity; Science and Technology; Climate models; climate change; climate modeling; climatology; El Nino-Southern Oscillation; heat source; monsoon; teleconnection; winter; China; Pacific Ocean; Philippine Sea; Qinghai-Xizang Plateau
语种	英语
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171417
作者单位	Earth System Modeling Center, Key Laboratory of Meteorological Disaster, Ministry of Education, Joint International Research Laboratory of Climate and Environment Change, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, China; Department of Atmospheric Sciences and IPRC, University of Hawai'i at Manoa, Honolulu, HI, United States
推荐引用方式 GB/T 7714	Li J.,Wang B.,Yang Y.-M.. Diagnostic metrics for evaluating model simulations of the east asian monsoon[J],2020,33(5).
APA	Li J.,Wang B.,&Yang Y.-M..(2020).Diagnostic metrics for evaluating model simulations of the east asian monsoon.Journal of Climate,33(5).
MLA	Li J.,et al."Diagnostic metrics for evaluating model simulations of the east asian monsoon".Journal of Climate 33.5(2020).