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Documentation of a highly ENSO‐related sst region in the equatorial pacific: Research note

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Bamston, Anthony G., Chelliah, Muthuvel, Goldenberg, Stanley B.·1997·Atmosphere-Ocean
DOI 10.1080/07055900.1997.9649597
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Abstract

A new ENSO SST index is documented that is strongly correlated to the core ENSO phenomenon. The SST anomaly in much of the east‐central and eastern tropical Pacific is closely related to ENSO. However, the anomaly from approximately the centre of the eastern half of the equatorial Pacific westward to near the date line is suggested to be most strongly ENSO‐related when data spanning the most recent several decades are used. This is the case both with respect to (1) strength of association with other oceanic/atmospheric ENSO‐related anomalies (both simultaneously and as a time‐delayed predictand), and (2) impact on remote worldwide climate anomalies. This observational insight was lacking in the early 1980s when the four “Niño” regions were developed. While a firmer dynamical foundation for this regional preference still needs to be established, the region straddling Niño 3 and Niño 4 may be regarded as an appropriate general SST index of the ENSO state by researchers, diagnosticians and forecasters. A dataset of this index, called “Niño 3.4” (5°N‐5°S, 120–170°W), is maintained on the Internet, shown in the Climate Diagnostics Bulletin, and provided in the Appendix of this note.

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Metadata

Authors
Bamston, A. G., Chelliah, M., & Goldenberg, S. B.
Venue
Atmosphere-Ocean
Publisher
Informa UK Limited
Published
1997-09
Volume
35
Issue
3
Pages
367-383
ISSN
  • 0705-5900 (ISSN-L)
  • 1480-9214
DOI
10.1080/07055900.1997.9649597
OpenAlex
W1975572099
Cited by
501
References
0
FWCI
2.69
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: Documentation of a highly ENSO‐related sst region in the equatorial pacific: Research note. https://app.cochat.ai/papers/10.1080/07055900.1997.9649597
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Bamston, A. G., Chelliah, M., & Goldenberg, S. B. (1997). Documentation of a highly ENSO‐related sst region in the equatorial pacific: Research note. Atmosphere-Ocean. https://doi.org/10.1080/07055900.1997.9649597

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