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A southern African secular variation model derived from satellite data: A southern African secular variation model derived from CHAMP satellite observations recorded between 2001 and 2005 - Couverture souple

Nahayo, Emmanuel; Kotzé, Pieter; Alport, Michael

 
9783659698637: A southern African secular variation model derived from satellite data: A southern African secular variation model derived from CHAMP satellite observations recorded between 2001 and 2005
Couverture souple
ISBN 10 : 3659698636 ISBN 13 : 9783659698637
Editeur : LAP LAMBERT Academic Publishing, 2015

Synopsis

Time variations of the geomagnetic field can be classified into two main categories of internal and external origin with respect to the surface of the Earth. It has been found that the variations that take place on longer time scales are commonly known as secular variation and are of internal origin. The authors study the time variations of the geomagnetic field on longer time scales over southern Africa region applying two regional geomagnetic field modelling techniques, namely, Polynomial Surface Modelling and Spherical Cap Harmonic Analysis to CHAMP satellite observations recorded between 2001 and 2005. They evaluate the performance of the developed model using two global models IGRF-10 and CHAOS with the help of ground-based data.The results identify the occurrence of rapid secular variation fluctuations in all components of the magnetic field vector in 2003 and 2004. These small scale features of the time variations of the geomagnetic field are not detectable by the global models. This book invites also those readers who are interested in operating geomagnetic instruments for data collection and in geomagnetic data processing.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

Time variations of the geomagnetic field can be classified into two main categories of internal and external origin with respect to the surface of the Earth. It has been found that the variations that take place on longer time scales are commonly known as secular variation and are of internal origin. The authors study the time variations of the geomagnetic field on longer time scales over southern Africa region applying two regional geomagnetic field modelling techniques, namely, Polynomial Surface Modelling and Spherical Cap Harmonic Analysis to CHAMP satellite observations recorded between 2001 and 2005. They evaluate the performance of the developed model using two global models IGRF-10 and CHAOS with the help of ground-based data.The results identify the occurrence of rapid secular variation fluctuations in all components of the magnetic field vector in 2003 and 2004. These small scale features of the time variations of the geomagnetic field are not detectable by the global models. This book invites also those readers who are interested in operating geomagnetic instruments for data collection and in geomagnetic data processing.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2015
Langue
anglais
ISBN 10 
3659698636
ISBN 13 
9783659698637
Reliure
Broché
Nombre de pages
208
Coordonnées du fabricant
non disponible
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