气候变化领域集成服务门户(CCPortal): Real world and tropical cyclone world. Part I: High-resolution climate model verification

CCPortal

DOI	10.1175/JCLI-D-19-0078.1
	Real world and tropical cyclone world. Part I: High-resolution climate model verification
	Sharmila S.; Walsh K.J.E.; Thatcher M.; Wales S.; Utembe S.
发表日期	2020
ISSN	0894-8755
起始页码	1455
结束页码	1472
卷号	33 期号:4
英文摘要	Recent global climate models with sufficient resolution and physics offer a promising approach for simulating real-world tropical cyclone (TC) statistics and their changing relationship with climate. In the first part of this study, we examine the performance of a high-resolution (;40-km horizontal grid) global climate model, the atmospheric component of the Australian Community Climate and Earth System Simulator (ACCESS) based on the Met Office Unified Model (UM8.5) Global Atmosphere (GA6.0). The atmospheric model is forced with observed sea surface temperature, and 20 years of integrations (1990–2009) are analyzed for evaluating the simulated TC statistics compared with observations. The model reproduces the observed climatology, geographical distribution, and interhemispheric asymmetry of global TC formation rates reasonably well. The annual cycle of regional TC formation rates over most basins is also well captured. However, there are some regional biases in the geographical distribution of TC formation rates. To identify the sources of these biases, a suite of model-simulated large-scale climate conditions that critically modulate TC formation rates are further evaluated, including the assessment of a multivariate genesis potential index. Results indicate that the model TC genesis biases correspond well to the inherent biases in the simulated large-scale climatic states, although the relative effects on TC genesis of some variables differs between basins. This highlights the model’s mean-state dependency in simulating accurate TC formation rates. © 2020 American Meteorological Society.
英文关键词	Earth atmosphere; Geographical distribution; Hurricanes; Oceanography; Storms; Surface waters; Tropics; Atmospheric components; Atmospheric model; Climate condition; Global climate model; High resolution climate model; Sea surface temperature (SST); Tropical cyclone; Unified Modeling; Climate models; climate modeling; climatology; computer simulation; geographical distribution; global climate; image resolution; performance assessment; sea surface temperature; tropical cyclone
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/171456
作者单位	Centre for Applied Climate Sciences, University of Southern Queensland, Toowoomba, QLD, Australia; School of Earth Sciences, University of Melbourne, Parkville, Australia; CSIRO Oceans and Atmosphere, Aspendale, Australia; School of Earth Sciences, University of Melbourne, Parkville, Australia; ARC Centre of Excellence for Climate System Science, Canberra, Australia; Environmental Protection Authority Victoria, Melbourne, Australia
推荐引用方式 GB/T 7714	Sharmila S.,Walsh K.J.E.,Thatcher M.,et al. Real world and tropical cyclone world. Part I: High-resolution climate model verification[J],2020,33(4).
APA	Sharmila S.,Walsh K.J.E.,Thatcher M.,Wales S.,&Utembe S..(2020).Real world and tropical cyclone world. Part I: High-resolution climate model verification.Journal of Climate,33(4).
MLA	Sharmila S.,et al."Real world and tropical cyclone world. Part I: High-resolution climate model verification".Journal of Climate 33.4(2020).