Empirical Orthogonal Teleconnections

Dool, Huug M. van den; Saha, Subodh Kumar; Johansson, Åke

doi:10.1175/1520-0442(2000)013<1421:eot>2.0.co;2

Cited by 158 publications

(116 citation statements)

References 14 publications

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“…The high-frequency (HF) analysis uses a set of anomaly-increment modes, or spatial patterns, computed using empirical orthogonal teleconnections (EOTs; Van den Dool et al 2000). Based on a training period of 1982-2011 (parameter 7 in Table 1), a maximum of 130 EOTs were used (Smith and Reynolds 2003), with screening to eliminate any modes not adequately sampled (,10% of the variance of the mode).…”

Section: Ersstv4 Algorithm and Parametersmentioning

confidence: 99%

Extended Reconstructed Sea Surface Temperature Version 4 (ERSST.v4): Part II. Parametric and Structural Uncertainty Estimations

Liu

Huang

Thorne³

et al. 2015

Journal of Climate

206

210

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Described herein is the parametric and structural uncertainty quantification for the monthly Extended Reconstructed Sea Surface Temperature (ERSST) version 4 (v4). A Monte Carlo ensemble approach was adopted to characterize parametric uncertainty, because initial experiments indicate the existence of significant nonlinear interactions. Globally, the resulting ensemble exhibits a wider uncertainty range before 1900, as well as an uncertainty maximum around World War II. Changes at smaller spatial scales in many regions, or for important features such as Niño-3.4 variability, are found to be dominated by particular parameter choices.Substantial differences in parametric uncertainty estimates are found between ERSST.v4 and the independently derived Hadley Centre SST version 3 (HadSST3) product. The largest uncertainties are over the mid and high latitudes in ERSST.v4 but in the tropics in HadSST3. Overall, in comparison with HadSST3, ERSST.v4 has larger parametric uncertainties at smaller spatial and shorter time scales and smaller parametric uncertainties at longer time scales, which likely reflects the different sources of uncertainty quantified in the respective parametric analyses. ERSST.v4 exhibits a stronger globally averaged warming trend than HadSST3 during the period of 1910-2012, but with a smaller parametric uncertainty. These global-mean trend estimates and their uncertainties marginally overlap.Several additional SST datasets are used to infer the structural uncertainty inherent in SST estimates. For the global mean, the structural uncertainty, estimated as the spread between available SST products, is more often than not larger than the parametric uncertainty in ERSST.v4. Neither parametric nor structural uncertainties call into question that on the global-mean level and centennial time scale, SSTs have warmed notably.

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Section: Ersstv4 Algorithm and Parametersmentioning

confidence: 99%

Extended Reconstructed Sea Surface Temperature Version 4 (ERSST.v4): Part II. Parametric and Structural Uncertainty Estimations

Liu

Huang

Thorne³

et al. 2015

Journal of Climate

206

210

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“…The PNA index describes one of the most dominant modes of low frequency variability in the northern hemisphere extratropics during the northern hemisphere winter ( Van den Dool et al, 2000). The PNA index is constructed through a linear combination of normalized 700 mb height anomalies nearest to the nominal centres of the PNA pattern (Leathers and Palecki, 1992).…”

Section: Climate Variability Indicesmentioning

confidence: 99%

Extreme wind regime responses to climate variability and change in the inner south coast of British Columbia, Canada

Abeysirigunawardena¹,

Gilleland²,

Bronaugh³

et al. 2009

Atmosphere-Ocean

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“…EOT analysis identifies independent regional patterns of variability (Van den Dool et al 2000;Smith 2004). The EOT method has been successfully demonstrated for interannual precipitation variability (Smith 2004;Rotstayn et al 2010;Klingaman et al 2013;King et al 2014) and for intraseasonal extreme precipitation (King et al 2014).…”

Section: Empirical Orthogonal Teleconnectionsmentioning

confidence: 99%

A comprehensive analysis of coherent rainfall patterns in China and potential drivers. Part II: intraseasonal variability

et al. 2017

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Empirical Orthogonal Teleconnections

Cited by 158 publications

References 14 publications

Extended Reconstructed Sea Surface Temperature Version 4 (ERSST.v4): Part II. Parametric and Structural Uncertainty Estimations

Extended Reconstructed Sea Surface Temperature Version 4 (ERSST.v4): Part II. Parametric and Structural Uncertainty Estimations

Extreme wind regime responses to climate variability and change in the inner south coast of British Columbia, Canada

A comprehensive analysis of coherent rainfall patterns in China and potential drivers. Part II: intraseasonal variability

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