An advective-reflective conceptual model for the oscillatory nature of the ENSO
| Autor: | F. Masia, Y. du Penhoat, Joël Picaut |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 1997 |
| Předmět: |
TEMPERATURE DE SURFACE
Multidisciplinary Meteorology Advection Oscillation media_common.quotation_subject Boundary (topology) Geophysics Western Hemisphere Warm Pool Action (physics) Physics::Geophysics Sea surface temperature El Niño Southern Oscillation ADVECTION MARINE MER Conceptual model MODELE CLIMATIQUE INTERACTION OCEAN ATMOSPHERE EL NINO Physics::Atmospheric and Oceanic Physics Geology media_common CONVERGENCE MARINE |
| Popis: | Recent findings about zonal displacements of the Pacific warm pool required a notable modification of the delayed action oscillator theory, the current leading theory for the El Niño–Southern Oscillation (ENSO). Simulations with a linearized coupled ocean-atmosphere model resulted in 3- to 6-year ENSO-like oscillations, with many of the variable model parameters found to be very close to their observed values. This simple model suggests that ocean processes that are ignored or underestimated in the delayed action oscillator theory, such as zonal current convergence, zonal advection of sea surface temperature, and equatorial wave reflection from the eastern ocean boundary, are fundamental to the development of the ENSO, in particular to its manifestations in the central equatorial Pacific. |
| Databáze: | OpenAIRE |
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