Analysis of upwelling changes in the eastern equatorial Pacific during el ni?o southern oscillation

The ocean reanalysis Simple Ocean Data Assimilation (SODA) 2.2.4 is used to explore the changes in upwelling from normal conditions to either El Ni?o or La Ni?a conditions. Physical and thermodynamic variables from the reanalysis are used to explore the structure and behaviour of El Ni?o Southern Os...

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Bibliographic Details
Main Author: Perugachi Salamea, Carlos Fernando
Other Authors: Giese, Benjamin
Format: Tesis de Maestría
Language:eng
Published: Texas A&M University / 2011 2013
Subjects:
Online Access:http://repositorio.educacionsuperior.gob.ec//handle/28000/1038
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Summary:The ocean reanalysis Simple Ocean Data Assimilation (SODA) 2.2.4 is used to explore the changes in upwelling from normal conditions to either El Ni?o or La Ni?a conditions. Physical and thermodynamic variables from the reanalysis are used to explore the structure and behaviour of El Ni?o Southern Oscillation (ENSO) events. The results of this analysis show that sea surface temperature (SST), entrainment velocity, wind stress, mixed layer depth, wind curl, and heat content anomalies are in general agreement with ENSO theory. Interestingly, the distribution of upwelling based on the entrainment velocity is very patchy, which led us to explore zonal and meridional sections of vertical velocity.