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  El Hermanito: El Nino’s overlooked little brother in the Atlantic

Latif, M., Groetzner, A., & Frey, H. (1996). El Hermanito: El Nino’s overlooked little brother in the Atlantic. Report / Max-Planck-Institut für Meteorologie, 196.

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 Creators:
Latif, Mojib1, Author
Groetzner, Anselm1, Author
Frey, Helmut1, Author
Affiliations:
1MPI for Meteorology, Max Planck Society, Bundesstraße 53, 20146 Hamburg, DE, ou_913545              

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 Abstract: An oscillation with a period of about 30 months has been identified in the
equatorial Atlantic by analyzing sea surface temperature (SST) observations
for the period 1949-1991. The 30-month time scale was also found in numerical
simulations with an atmospheric general circulation model (AGCM) that was
forced by these SSTs and a coupled ocean atmosphere general circulation model
(CGCM). Consistent with the theory of tropical air-sea interactions, the
Atlantic oscillation (El Hermanito) is an inherently coupled air-sea mode and
can be viewed as the Atlantic analogon of the El Nifio/Southern Oscillation
(ENSO) phenomenon in the equatorial Pacific. El Hermanito is an internal
Atlantic mode and appears to be independent of the quasi-biennial (QB)
variability observed in the tropical Indian and Pacific Oceans. The discovery
of El Hermanito is important to the prediction of Atlantic climate anomalies.

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Language(s): eng - English
 Dates: 1996
 Publication Status: Issued
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 Rev. Type: Internal
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Title: Report / Max-Planck-Institut für Meteorologie
  Other : MPI Report
Source Genre: Series
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Publ. Info: Hamburg : Max-Planck-Institut für Meteorologie
Pages: - Volume / Issue: 196 Sequence Number: - Start / End Page: - Identifier: ISSN: 0937-1060
CoNE: https://pure.mpg.de/cone/journals/resource/0937-1060