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DOI	10.1175/JCLI-D-19-0897.1
	The diurnal temperature range in CMIP6 models: Climatology, variability, and evolution
	Wang K.; Clow G.D.
发表日期	2020
ISSN	08948755
起始页码	8261
结束页码	8279
卷号	33 期号:19
英文摘要	The diurnal temperature range (DTR) is an identifiable and sensitive indicator of the synchronicity of changes in diurnal temperature extrema, but capturing DTR dynamics is challenging for climate models. This study investigates the climatology, variability, and changes of DTR in recent models participating in phase 6 of the Coupled Model Intercomparison Project (CMIP6). The results show that the CMIP6 models underestimate DTR climatology relative to observations. Most individual models overestimate December-February variability, particularly at high latitudes of the Northern Hemisphere. The models show substantially different changes over land surfaces and do not fully capture the observed spatiotemporal evolution of DTR. Large intermodel differences seem to be controlled by daily minimum air temperature. In the Northern Hemisphere, precipitation and cloud longwave and shortwave radiative effects appear to make important contributions to the intermodel discrepancies. Evaporative fraction is an important factor contributing to the intermodel differences in DTR during the summer in the Northern Hemisphere. In general, CMIP6 models have not improved their ability to simulate temporal DTR changes in a consistent way over the entire analysis period (1901-2005) relative to their CMIP5 counterparts. For periods of rapid DTR decline (e.g., 1951-80) CMIP6 models are typically better than the CMIP5 versions at simulating DTR, whereas for other periods CMIP6 models underperform their CMIP5 counterparts. © 2020 American Meteorological Society.
语种	英语
scopus关键词	Climatology; Precipitation (meteorology); Coupled Model Intercomparison Project; Diurnal temperature ranges; Diurnal temperatures; Evaporative fraction; Individual models; Northern Hemispheres; Sensitive indicator; Spatiotemporal evolution; Climate models; air temperature; climate modeling; climatology; CMIP; diurnal variation; electromagnetic wave; evaporation; precipitation (climatology); temporal evolution
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/178721
作者单位	School of Geographic Sciences, East China Normal University, Shanghai, China; Institute of Arctic and Alpine Research, University of Colorado Boulder, Boulder, CO, United States
推荐引用方式 GB/T 7714	Wang K.,Clow G.D.. The diurnal temperature range in CMIP6 models: Climatology, variability, and evolution[J],2020,33(19).
APA	Wang K.,&Clow G.D..(2020).The diurnal temperature range in CMIP6 models: Climatology, variability, and evolution.Journal of Climate,33(19).
MLA	Wang K.,et al."The diurnal temperature range in CMIP6 models: Climatology, variability, and evolution".Journal of Climate 33.19(2020).