Analysis of Long-Term Changes in Annual and Seasonal Precipitation in Chile and Related Large-Scale Atmospheric Circulation Patterns

Persistent Link:
http://hdl.handle.net/10150/323414
Title:
Analysis of Long-Term Changes in Annual and Seasonal Precipitation in Chile and Related Large-Scale Atmospheric Circulation Patterns
Author:
Valdés, Rodrigo
Issue Date:
2014
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The study of empirical teleconnections between annual and seasonal precipitation anomalies and different climate indices i.e. SOI, PDO, MEI, AAO, ONI, TWI, N3.4, TNI, and MJO, is an important approach to describe and analyze spatial and temporal precipitation variability. The objective of this study was to describe and analyze the main features of interannual and seasonal precipitation variability along Chile, and the influence of different ocean-atmospheric oscillations on secular long-term patterns. An exhaustive analysis through Empirical Orthogonal Functions (EOF) allowed determining the significant modes of annual and seasonal precipitation, and the main spatial patterns associated to them. Discrete Fourier Transform (DFT), the Singular Spectrum Analysis (SSA), and the Multichannel Singular Spectrum Analysis (M-SSA) were additionally used to determine the main frequencies and oscillatory components associated with leading climatic modes and precipitation patterns. The results agreed with those obtained by other authors and also when using different datasets. Despite advances on detailed annual and seasonal analysis that were carried out here, more detailed country-based studies are still required to develop a detailed understanding about climatic patterns along a country that is geographically very difficult to investigate.
Type:
text; Electronic Thesis
Keywords:
Hydrology
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Hydrology
Degree Grantor:
University of Arizona
Advisor:
Valdés, Juan B.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen
dc.titleAnalysis of Long-Term Changes in Annual and Seasonal Precipitation in Chile and Related Large-Scale Atmospheric Circulation Patternsen_US
dc.creatorValdés, Rodrigoen_US
dc.contributor.authorValdés, Rodrigoen_US
dc.date.issued2014en
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe study of empirical teleconnections between annual and seasonal precipitation anomalies and different climate indices i.e. SOI, PDO, MEI, AAO, ONI, TWI, N3.4, TNI, and MJO, is an important approach to describe and analyze spatial and temporal precipitation variability. The objective of this study was to describe and analyze the main features of interannual and seasonal precipitation variability along Chile, and the influence of different ocean-atmospheric oscillations on secular long-term patterns. An exhaustive analysis through Empirical Orthogonal Functions (EOF) allowed determining the significant modes of annual and seasonal precipitation, and the main spatial patterns associated to them. Discrete Fourier Transform (DFT), the Singular Spectrum Analysis (SSA), and the Multichannel Singular Spectrum Analysis (M-SSA) were additionally used to determine the main frequencies and oscillatory components associated with leading climatic modes and precipitation patterns. The results agreed with those obtained by other authors and also when using different datasets. Despite advances on detailed annual and seasonal analysis that were carried out here, more detailed country-based studies are still required to develop a detailed understanding about climatic patterns along a country that is geographically very difficult to investigate.en_US
dc.typetexten
dc.typeElectronic Thesisen
dc.subjectHydrologyen_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineHydrologyen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorValdés, Juan B.en_US
dc.contributor.committeememberDiaz, Henryen_US
dc.contributor.committeememberGupta, Hoshinen_US
dc.contributor.committeememberSerrat, Aleixen_US
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