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System Engineering Applied to Fuenmayor Karst Aquifer (San Julián de Banzo, Huesca) and Collins Glacier (King George Island, Antarctica): Springer Theses

Autor David Chinarro
en Limba Engleză Hardback – 7 aug 2014
This thesis tackles fundamental questions concerning the discharge of a pre-Pyrenean karst aquifer system and an Antarctic glacier system, utilizing a system engineering methodology and data-driven approach. It presents for the first time a simplified and effective linear transfer function for karst aquifers. The author provides detailed wavelet spectrum results, which reveal certain non-linearities in drought periods. In addition, structures based on Hammerstein-Wiener blocks have yielded a nonlinear model that is substantially more efficient than its linear counterparts.
Another pioneering finding is the use of wavelet coherence between glacier discharge and air temperature to estimate SEC (Seasonal Effective Core) boundaries. The yearly SEC is essential to obtaining a model based on Hammerstein-Wiener structures, which offers considerably higher efficiency. Moreover, two different types of glacier dynamics have been discovered (over damped and overshoot), depending on the annual cycle and the SEC average temperature.
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Specificații

ISBN-13: 9783319088570
ISBN-10: 3319088572
Pagini: 181
Ilustrații: XX, 161 p. 54 illus., 33 illus. in color.
Dimensiuni: 155 x 235 x 17 mm
Greutate: 0.44 kg
Ediția:2014
Editura: Springer International Publishing
Colecția Springer
Seria Springer Theses

Locul publicării:Cham, Switzerland

Public țintă

Research

Cuprins

Introduction.- Techniques.- Karst and Glacial Hydrology.- Fuenmayor Aquifer.- Collins Glacier.- Final Conclusions.- Appendices.- Glossary.

Textul de pe ultima copertă

This thesis tackles fundamental questions concerning the discharge of a pre-Pyrenean karst aquifer system and an Antarctic glacier system, utilizing a system engineering methodology and data-driven approach.
It presents for the first time a simplified and effective linear transfer function for karst aquifers. The author provides detailed wavelet spectrum results, which reveal certain non-linearities in drought periods. In addition, structures based on Hammerstein-Wiener blocks have yielded a nonlinear model that is substantially more efficient than its linear counterparts.
Another pioneering finding is the use of wavelet coherence between glacier discharge and air temperature to estimate SEC (Seasonal Effective Core) boundaries. The yearly SEC is essential to obtaining a model based on Hammerstein-Wiener structures, which offers considerably higher efficiency. Moreover, two different types of glacier dynamics have been discovered (overdamped and overshoot), depending on the annual cycle and the SEC average temperature.

Caracteristici

Nominated as an Outstanding Ph.D. thesis by the University of Zaragoza, Spain For researchers looking for innovative methods of systems identification for data-driven analysis of a karst aquifer and a polar glacier How to build models for nonlinear natural systems to improve the management, simulate the behavior, predict future states and offer useful help to generate knowledge in subsequent research It shows a progressive identification from linear to nonlinear identification, to get the best of both into a block model, which emulates the dynamics of the natural system with high efficiency Includes supplementary material: sn.pub/extras