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| Titel |
Climate network reveals the effect of deep equatorial Pacific ridge on El-Nino |
| VerfasserIn |
Yang Wang, Avi Gozolchiani, Yosef Ashkenazy, Shlomo Havlin |
| Konferenz |
EGU General Assembly 2015
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 17 (2015) |
| Datensatznummer |
250114123
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| Publikation (Nr.) |
 EGU/EGU2015-14422.pdf |
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| Zusammenfassung |
| In spite of the intensive research of El-Nino, one of the most influential climate phenomenon on annual time scales, the origin of the emergence and dissipation locations of waves associated with El-Nino are still not settled. Here we develop a novel method that relies on network theory to quantify the properties of tropical El-Nino related Kelvin and Rossby oceanic waves, based on sea-surface height altimetry data. The climate network exhibits well-defined locations of the waves’ initiation and termination and is used to quantify successfully the waves’ characteristics. It is found that the location of the hubs of the out-going and in-coming links in this climate network are in concert with the locations of the westerly wind bursts (WWBs) and the deep Pacific (Kiribati) ridge respectively. This suggests that El-Nino dynamics is influenced by the very deep (~2 km) Kiribati ridge; this idea is supported by simulations of an oceanic general circulation model. |
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