Results 91 to 100 of about 1,592 (183)

The CHAOS-3 Geomagnetic Field Model and Candidates for the 11th Generation IGRF [PDF]

open access: yes, 2010
As a part of the 11th generation IGRF defined by IAGA, we propose a candidate model for the DGRF 2005, a candidate model for IGRF 2010 and a candidate model for the mean secular variation between 2010 and 2015.
Nils Olsen   +7 more
core   +1 more source

ITalian Geomagnetic Reference Field (ITGRF): update for 2000 and secular variation model up to 2005 by autoregressive forecasting

open access: yesAnnals of Geophysics, 2003
The updated version of the ITalian Geomagnetic Reference Field (ITGRF) for 2000.0 and its secular variation model up to 2005.0 are presented in this paper.
J. M. Torta   +5 more
doaj   +1 more source

Evaluation of IGRF 1980 candidate models.

open access: yesJournal of geomagnetism and geoelectricity, 1982
The IGRF candidate models for the main field 1980 and the secular variation 1980-85 are compared with observations. The IGS and USGS secular variation models agree better with the global set of secular variation estimates than does the NASA model. The NASA and USGS models represent more closely than does the IGS model a spatially limited set of 1980 ...
openaire   +2 more sources

Ukrainian geomagnetic repeat station network and results of the field work reduced to the epoch 2005.5

open access: yesAnnals of Geophysics, 2013
The results of geomagnetic field components of the renewed Ukrainian repeat stations (RS) network are presented. The methods of absolute geomagnetic and astro-geodetic measurements are described.
Valentyn Maksymchuk   +4 more
doaj   +1 more source

Preliminary Report: DESiGN and Test Result of KSR-3 Rocket Magnetometers [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2000
The solar wind contributes to the formation of unique space environment called the Earth's magnetosphere by various interactions with the Earth's magnetic field.
Hyo-Min Kim   +6 more
doaj  

An evaluation of candidate geomagnetic field models for IGRF 2000 [PDF]

open access: yesEarth, Planets and Space, 2014
A global evaluation is made of the four candidate models for IGRF 2000 (main field and secular variation) that were submitted to the IAGA Working Group V-8 by the deadline in February 1999. A description of the data used and the method of modelling is summarised for each candidate model.
openaire   +1 more source

Implementing the 2015-2020 Earth\'s Geomagnetic Model for Satellite Simulator Based on 12th Generation Data

open access: yes, 2016
: Magnetorqueris one of the method to produce attitude control torque in low orbit satellite. The torque is produced from the interaction of Earth's magnetic field with the electro-magnetic dipole, produced in the satellite. Therefore, it is important to
Robertus H. Triharjanto   +2 more
core  

Extracting geomagnetic data from IGRF-12 with Python

open access: yes, 2017
<p>The earth's core behaves as a big magnet. On the surface, we measure different values in magnetic surveys as we move from one geomagnetic pole to the other.
De Pinho, Bruno   +1 more
core   +1 more source

IGRF commercialization defeated, planetary studies probed by IAGA

open access: yesEos, Transactions American Geophysical Union, 1991
Sessions of the International Association of Geomagnetism and Aeronomy (IAGA) at the XX International Union of Geodesy and Geophysics meeting in Vienna, Austria (August 11–24), lasted for nearly the full 2 weeks of the conference. Once again, the program offered a vast array of scientific topics ranging from the outer limits of the heliosphere to ...
Christopher Harrison   +2 more
openaire   +1 more source

GEOMAGNETIC SECULAR VARIATION AT ADDIS ABABA OVER THE LAST FOUR DECADES: COMPARISON WITH 1945-2000 IGRF MODELS [PDF]

open access: yes, 2023
Addis Ababa Observatory (aae) geomagnetic data analysed over the time-span 1958—1998 show that the annual mean values of the intensity have decreased since 1965 from 36186 nT to 35950 nT at a non-linear regression rate of 8—9 nT per year.
Haile, Tigistu
core  

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