气候变化领域集成服务门户(CCPortal): Principal Component Analysis for Extremes and Application to U.S. Precipitation

CCPortal

DOI	10.1175/JCLI-D-19-0413.1
	Principal Component Analysis for Extremes and Application to U.S. Precipitation
	Jiang Y.; Cooley D.; Wehner M.F.
发表日期	2020
ISSN	0894-8755
起始页码	6441
结束页码	6451
卷号	33 期号:15
英文摘要	We propose a method for analyzing extremal behavior through the lens of a most efficient basis of vectors. The method is analogous to principal component analysis, but is based on methods from extreme value analysis. Specifically, rather than decomposing a covariance or correlation matrix, we obtain our basis vectors by performing an eigendecomposition of a matrix that describes pairwise extremal dependence.We apply the method to precipitation observations over the contiguous United States. We find that the time series of large coefficients associated with the leading eigenvector shows very strong evidence of a positive trend, and there is evidence that large coefficients of other eigenvectors have relationships with El Ninõ-Southern Oscillation. © 2020 American Meteorological Society. All rights reserved.
英文关键词	Atmospheric pressure; Eigenvalues and eigenfunctions; Basis vector; Correlation matrix; Eigen decomposition; Extremal; Extremal behavior; Extreme value analysis; Southern oscillation; Through the lens; Covariance matrix; decomposition analysis; eigenvalue; El Nino-Southern Oscillation; matrix; precipitation (climatology); principal component analysis; vector; United States
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/171198
作者单位	Colorado State University, Fort Collins, CO, United States; Lawrence Berkeley National Laboratory, Berkeley, CA, United States
推荐引用方式 GB/T 7714	Jiang Y.,Cooley D.,Wehner M.F.. Principal Component Analysis for Extremes and Application to U.S. Precipitation[J],2020,33(15).
APA	Jiang Y.,Cooley D.,&Wehner M.F..(2020).Principal Component Analysis for Extremes and Application to U.S. Precipitation.Journal of Climate,33(15).
MLA	Jiang Y.,et al."Principal Component Analysis for Extremes and Application to U.S. Precipitation".Journal of Climate 33.15(2020).