气候变化领域集成服务门户(CCPortal): Eastern North Pacific tropical cyclone activity in historical and future CMIP5 experiments: assessment with a model-independent tracking scheme

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DOI	10.1007/s00382-019-04830-0
	Eastern North Pacific tropical cyclone activity in historical and future CMIP5 experiments: assessment with a model-independent tracking scheme
	Bell S.S.; Chand S.S.; Tory K.J.; Turville C.; Ye H.
发表日期	2019
ISSN	0930-7575
起始页码	4841
结束页码	4855
卷号	53 期号:2020-07-08
英文摘要	The sensitivity of tropical cyclone (TC) projection results to different models and the detection and tracking scheme used is well established in the literature. Here, future climate projections of TC activity in the Eastern North Pacific basin (ENP, defined from 0° to 40°N and 180° to ~ 75°W) are assessed with a model- and basin-independent detection and tracking scheme that was trained in reanalysis data. The scheme is applied to models from the Coupled Model Intercomparison Project Phase 5 (CMIP5) experiments forced under the historical and Representative Concentration Pathway 8.5 (RCP8.5) conditions. TC tracks from the observed records and models are analysed simultaneously with a curve-clustering algorithm, allowing observed and model tracks to be projected onto the same set of clusters. The ENP is divided into three clusters, one in the Central North Pacific (CNP) and two off the Mexican coast, as in prior studies. After accounting for model biases and auto-correlation, projection results under RCP8.5 indicated TC genesis to be significantly suppressed east of 125°W, and significantly enhanced west of 145°W by the end of the twenty-first century. Regional TC track exposure was found to significantly increase around Hawaii (~ 86%), as shown in earlier studies, owing to increased TC genesis, particularly to the south-east of the island nation. TC exposure to Southern Mexico was shown to decrease (~ 4%), owing to a south-westward displacement of TCs and overall suppression of genesis near the Mexican coastline. The large-scale environmental conditions most consistent with these projected changes were vertical wind shear and relative humidity. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
语种	英语
scopus关键词	algorithm; assessment method; cluster analysis; CMIP; experimental study; future prospect; storm track; tropical cyclone; Pacific Ocean; Pacific Ocean (North)
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145954
作者单位	Centre for Informatics and Applied Optimization, Federation University Australia, Ballarat, 3357, Australia; Research and Development Branch, Bureau of Meteorology, Melbourne, 3001, Australia
推荐引用方式 GB/T 7714	Bell S.S.,Chand S.S.,Tory K.J.,et al. Eastern North Pacific tropical cyclone activity in historical and future CMIP5 experiments: assessment with a model-independent tracking scheme[J],2019,53(2020-07-08).
APA	Bell S.S.,Chand S.S.,Tory K.J.,Turville C.,&Ye H..(2019).Eastern North Pacific tropical cyclone activity in historical and future CMIP5 experiments: assessment with a model-independent tracking scheme.Climate Dynamics,53(2020-07-08).
MLA	Bell S.S.,et al."Eastern North Pacific tropical cyclone activity in historical and future CMIP5 experiments: assessment with a model-independent tracking scheme".Climate Dynamics 53.2020-07-08(2019).