On the observed relationships between wintertime variability in Kuroshio-Oyashio Extension sea surface temperatures and the atmospheric circulation over the North Pacific

Wills, Samantha M. and Thompson, David W. J. (2018) On the observed relationships between wintertime variability in Kuroshio-Oyashio Extension sea surface temperatures and the atmospheric circulation over the North Pacific. Journal of Climate, 31 (12). 4669–4681. ISSN 0894-8755

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Abstract

Observational analyses reveal that wintertime variations in sea surface temperatures (SST) in the Kuroshio–Oyashio Extension (KOE) region of the North Pacific are associated with two distinct and robust patterns of atmospheric variability: 1) a pattern that peaks in amplitude approximately 2–3 weeks prior to large KOE SST anomalies and is consistent with atmospheric forcing of the SST field and 2) a very different pattern that lags SST anomalies in the KOE region by approximately a month. The latter pattern is dominated by low sea level pressure anomalies and turbulent heat fluxes directed into the atmosphere over warm SST anomalies and is interpreted as the transient atmospheric response to SST anomalies over the KOE region. The results contribute to a growing body of evidence that suggests variations in SSTs in the midlatitude oceans are capable of significantly influencing the large-scale atmospheric circulation, especially near western boundary currents.

Item Type: Article
Faculty \ School: Faculty of Science > School of Environmental Sciences
Related URLs:
Depositing User: LivePure Connector
Date Deposited: 10 Jun 2022 10:30
Last Modified: 10 Jun 2022 10:30
URI: https://ueaeprints.uea.ac.uk/id/eprint/85502
DOI: 10.1175/JCLI-D-17-0343.1

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