Results 231 to 240 of about 679 (255)

An Equivalent Source Model for the Geomagnetic Field

2013
A new model for the geomagnetic field is presented. It does not rely heavily on the present-day field, which has some ephemeral characteristics, but mostly on paleomagnetic data from lava flows, in particular the large Icelandic data set. The model consists of an axial dipole and vertical off centered dipoles representing the non-axial-dipole field ...
openaire   +1 more source

Models of the geomagnetic field on the territory of the Republic of Macedonia

2008
The aim of this paper is to present various geomagnetic field models of Macedonia based on measurements at repeat stations as well as satellite data covering this region. At first a theoretical basis of the geomagnetic field, spherical cap harmonical model and polynomial model will be given.
Panovska, Sanja, Delipetrov, Todor, Delipetrev, Marjan, Delipetrev, Blagoj   +3 more
openaire   +1 more source

Regional geomagnetic field model for Croatia

2015
Geomagnetic components at Croatian repeat stations and ground survey sites, as well as European observatories and repeat stations, were used to obtain a regional geomagnetic model over Croatia at 2009.5 epoch. Different models were derived, depending on input data, and the modelling techniques were Adjusted Spherical Harmonic Analysis and Spherical ...
Vujić, Eugen, Kovács, Peter, Brkić, Mario, Varga, Matej   +3 more
openaire   +2 more sources

On The Modeling Of The Regional Geomagnetic Field

2006
Cilj rada bio je regionalno modeliranje glavnog magnetskog polja i njegove sekularne promjene primjenom sferne harmoničke analize na kuglinoj kaloti SCHA, tehnike (Spherical Cap Harmonic Analyses). Europsko područje izabrano je za modeliranje, budući je mreža geomagnetskih opservatorija ovdje najgušća.
openaire   +1 more source

Probabilistic approach to geomagnetic field modelling of data with age uncertainties and post-depositional magnetisations

Physics of the Earth and Planetary Interiors, 2021
Andreas Nilsson Hed
exaly  

Regularized geomagnetic field modelling using monopoles

Geophysical Journal International, 1994
Robert L Parker
exaly  

Modelling the geomagnetic main field and recent secular variation

Geophysical and Astrophysical Fluid Dynamics, 1991
D R Barraclough
exaly  

Modelling the Earth's Geomagnetic Field to High Degree and Order

Geophysical Journal International, 1989
Joseph C Cain
exaly  

An inspection of the long-term behaviour of the range of the daily geomagnetic field variation from comprehensive modelling

Journal of Atmospheric and Solar-Terrestrial Physics, 2009
David Altadill, Luis R Gaya-Piqué, J Miquel Torta   +2 more
exaly  

On the Usage of Geomagnetic Indices for Data Selection in Internal Field Modelling

Space Science Reviews, 2016
Hermann Josef Opgenoorth, Achim Morschhauser, Christopher C Finlay   +2 more
exaly