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On the relationship between ENSO diversity and the ENSO atmospheric teleconnection to high-latitudes
Indexado
WoS WOS:000682099900001
Scopus SCOPUS_ID:85111859264
DOI 10.1002/JOC.7304
Año 2022
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



The El Nino-Southern Oscillation (ENSO) has experienced changes in its properties since the 1990s, particularly increased occurrence of Central Pacific El Nino events. These events have influenced atmospheric circulation in the mid to high-latitudes of both hemispheres through atmospheric teleconnection. Here it is shown that, in the Northern Hemisphere, the planetary circulation response to the Eastern Pacific (EP) event in boreal winter is associated with Rossby waves propagating poleward and is mostly confined to the Pacific region, while the Central Pacific (CP) event induces a negative phase of Arctic Oscillation (AO)-like circulation pattern at planetary scale. In the Southern Hemisphere (SH), the difference between the circulation patterns associated with the two types of El Nino in austral summer is rather small and the response of the tropospheric circulation consists of an Antarctic Oscillation (AAO)-like negative phase pattern. In the SH, the circulation response to CP Nino lasts longer than that to EP Nino. In particular, during EP Nino the composite circulation anomalies reverse sign from austral summer to winter, which is not the case during CP event. This adds an interhemispheric asymmetry dimension to the ENSO atmospheric teleconnection in the high-latitudes in relation to ENSO diversity. These changes in the circulation are associated with surface air-temperature anomalies that have the potential to exacerbate observed long-term trends. A subgroup of CMIP5 models that realistically simulate both ENSO nonlinearity (diversity) and the AO and AAO-like patterns are analysed, showing that in the warmer climate, the circulation response in the high-latitudes to both types of events is amplified in both hemispheres.

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Disciplinas de Investigación



WOS
Meteorology & Atmospheric Sciences
Scopus
Sin Disciplinas
SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional



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Autores - Afiliación



Ord. Autor Género Institución - País
1 Gushchina, Daria Mujer Moscow State Univ MSU - Rusia
Russian State Hydrometeorol Univ RSHU - Rusia
Lomonosov Moscow State University - Rusia
Russian State Hydrometeorological University - Rusia
2 Kolennikova, Maria Mujer Moscow State Univ MSU - Rusia
Lomonosov Moscow State University - Rusia
3 Dewitte, B. Hombre Centro de Estudios Avanzados en Zonas Aridas - Chile
Universidad Católica del Norte - Chile
Núcleo Milenio de Ecología y Manejo Sustentable de Islas Oceánicas - Chile
Univ Toulouse - Francia
Université Fédérale Toulouse Midi-Pyrénées - Francia
Université de Toulouse - Francia
4 Yeh, Sang-Wook Hombre Hanyang Univ ERICA - Corea del Sur
Hanyang University ERICA Campus - Corea del Sur

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Financiamiento



Fuente
Agence Nationale de la Recherche
Russian Science Foundation
ANR
ANID
Agencia Nacional de Investigación y Desarrollo
Korean Meteorological Administration Research and Development Program
ANID (Concurso de Fortalecimiento al Desarrollo Cientifico de Centros Regionales)
RFS
Desarrollo Científico de Centros Regionales

Muestra la fuente de financiamiento declarada en la publicación.

Agradecimientos



Agradecimiento
ANID (Concurso de Fortalecimiento al Desarrollo Cientifico de Centros Regionales 2020-R20F0008-CEAZA and Grant 1190276); Korean Meteorological Administration Research and Development Program, Grant/Award Number: KMI2020-01213; Russian Science Foundation, Grant/Award Number: 19-17-00198; ANR, Grant/Award Number: ANR-18-CE01-0012
D. Gushchina and M. Kolennikova acknowledge support from the Russian Scientific Foundation (RFS), project 19-17-00198. B. Dewitte acknowledges support from ANID (Concurso de Fortalecimiento al Desarrollo Científico de Centros Regionales 2020-R20F0008-CEAZA and Grant 1190276) and ANR (Grant ANR-18-CE01-0012). S.W. Yeh was funded by the Korean Meteorological Administration Research and Development Program under grant (KMI2020-01213). The authors acknowledge EcoSpatial Services L.L.C. (USA) for the English language editing.
ANID (Concurso de Fortalecimiento al Desarrollo Científico de Centros Regionales 2020‐R20F0008‐CEAZA and Grant 1190276); Korean Meteorological Administration Research and Development Program, Grant/Award Number: KMI2020‐01213; Russian Science Foundation, Grant/Award Number: 19‐17‐00198; ANR, Grant/Award Number: ANR‐18‐CE01‐0012 Funding information

Muestra la fuente de financiamiento declarada en la publicación.