Non-linear sea level variations in the eastern tropical Pacific

• Autorzy: Niedzielski T.

Identyfikatory

DOI

10.2478/v10018-010-0001-z

• Języki publikacji: EN

Abstrakty

EN

The objective of this paper is to provide an insightful interpretation for the non-linearity of the inter-annual signal in sea level change in the eastern tropical Pacific. Such a non-linearity has been already discussed elsewhere for global ocean. Herein, the residual sea level anomaly time series from TOPEX/Poseidon and Jason-1 altimetry is obtained by removing the significant deterministic signals from the original sea level anomaly data. Since the eastern tropical Pacific is a profound region where many processes responsible for driving the El Niño/Southern Oscillation (ENSO) act, it is possible to link a few of them with the non-linearity of sea level change. In particular, not only local, usually weak, oceanatmosphere interactions exist in the eastern equatorial Pacific but this region is also remotely impacted by climatic processes acting in the western equatorial Pacific where the oceanatmosphere coupling is the strongest. The detected non-linearity of sea level change is due to the asymmetry between warm and cold ENSO episodes. Such an asymmetry can be driven by the non-linear dynamical heating associated with strong ENSO events.

Słowa kluczowe

EN

El Nino; Southern Oscillation; ENSO; dynamical heating; nonlinear time series; satellite altimetry; TOPEX/Posejdon; Jason-1

• Wydawca: Centrum Badań Kosmicznych PAN ; De Gruyter
• Czasopismo: Artificial Satellites : Journal of Planetary Geodesy
• Rocznik: 2010
• Tom: Vol. 45, No. 1
• Strony: 1--10
• Opis fizyczny: Bibliogr. 35 poz., rys.

Twórcy

autor

Niedzielski T.

• Space Research Centre, Polish Academy of Sciences, Poland
• Oceanlab, University of Aberdeen, Scotland, UK

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).