Quasi-Geostrophic Models for Fast Dynamics in the Earth's Outer Core | Observational, numerical and mathematical modelling of the interannual to decadal variability of the Earth's fluid core

Stefano Maffei

ISBN 10: 3838153782 / ISBN 13: 9783838153780

Published by Südwestdeutscher Verlag für Hochschulschriften, 2017

About this Item

Quasi-Geostrophic Models for Fast Dynamics in the Earth's Outer Core | Observational, numerical and mathematical modelling of the interannual to decadal variability of the Earth's fluid core | Stefano Maffei | Taschenbuch | 272 S. | Englisch | 2017 | Südwestdeutscher Verlag für Hochschulschriften | EAN 9783838153780 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.

Seller Inventory # 109438233

Bibliographic Details

• Title: Quasi-Geostrophic Models for Fast Dynamics in the Earth's Outer Core | Observational, numerical and mathematical modelling of the interannual to decadal variability of the Earth's fluid core
• Publisher: Südwestdeutscher Verlag für Hochschulschriften
• Publication Date: 2017
• Language: English
• ISBN 10: 3838153782
• ISBN 13: 9783838153780
• Binding: Taschenbuch
• Condition: Neu
• Dimensions: 220W x 150H x 17D millimeters 220 millimeters width by 150 millimeters height by 17 millimeters depth
• Weight: 423 grams
• Seller catalogs:
  • Bücher

About this title

Synopsis

The geomagnetic field is one of the most prominent characteristics of our planet. It protects us from harmful solar and cosmic radiations and provides us with the North and South geomagnetic poles. Most importantly, it opens a window on the deepest region of our planet: the Earth's core. The geomagnetic field is known to show oscillations and variability on a wide range of timescales. These are believed to be the observable consequence of the rich dynamics taking place in the outer core of the Earth, where fluid motions driven mainly by thermochemical convection generate and constantly modify the geomagnetic field. To link the geomagnetic observations with the core flows is an incredibly difficult feat that challenges our technological capabilities and scientific understanding of the structure and dynamics of the Earth's interior. Here I study the possibility of using the inerannual to decadal geomagnetic oscillations to obtain a dynamical picture of the fluid flow and magnetic fields in the Earth's outer core. This is possible thanks to the quasi-geostrophic approximation, originating from the overwhelming importance of Earth's rotation on the core dynamics.