globalchange  > 全球变化的国际研究计划
DOI: 10.1038/s41598-019-47400-4
WOS ID: WOS:000477701800096
Predictability of US West Coast Ocean Temperatures is not solely due to ENSO
Author: Capotondi, Antonietta1,2; Sardeshmukh, Prashant D.1,2; Di Lorenzo, Emanuele3; Subramanian, Aneesh C.4; Miller, Arthur J.5
Corresponding Author: Capotondi, Antonietta
Source Publication: SCIENTIFIC REPORTS
ISSN: 2045-2322
Publishing Year: 2019
Volume: 9
Language: 英语
WOS Category: Multidisciplinary Sciences
WOS Research Area: Science & Technology - Other Topics
English Abstract:

The causes of the extreme and persistent warming in the Northeast Pacific from the winter of 2013/14 to that of 2014/15 are still not fully understood. While global warming may have contributed, natural influences may also have played a role. El Nino events are often implicated in anomalously warm conditions along the US West Coast (USWC). However, the tropical Pacific sea surface temperature (SST) anomalies were generally weak during 2014, calling into question their role in the USWC warming. In this study, we identify tropical Pacific "sensitivity patterns" that optimally force USWC warming at a later time. We find that such sensitivity patterns do not coincide with the mature SST anomaly patterns usually associated with ENSO, but instead include elements associated with ENSO SST precursors and SST anomalies in the central/western equatorial Pacific. El Nino events that produce large USWC warming, irrespective of their magnitude, do project on the sensitivity pattern and are characterized by a distinct evolution of the North Pacific atmospheric and oceanic fields. However, even weak tropical SST anomalies in the right location, and not necessarily associated with ENSO, can significantly influence USWC conditions and enhance their predictability.

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Document Type: 期刊论文
Appears in Collections:全球变化的国际研究计划

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Affiliation: 1.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA
2.NOAA, Earth Syst Res Lab, Phys Sci Div, Boulder, CO 80303 USA
3.Georgia Inst Technol, Atlanta, GA 30332 USA
4.Univ Colorado, Boulder, CO 80309 USA
5.Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA

Recommended Citation:
Capotondi, Antonietta,Sardeshmukh, Prashant D.,Di Lorenzo, Emanuele,et al. Predictability of US West Coast Ocean Temperatures is not solely due to ENSO[J]. SCIENTIFIC REPORTS,2019-01-01,9
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