Results 61 to 70 of about 5,592 (185)

New IGRF computer program

open access: yesEos, Transactions American Geophysical Union, 1969
A Fortran II Computer program has been developed by the U.S. Coast and Geodetic Survey to compute the International Geomagnetic Reference Field (IGRF) for any geographic position. To facilitate the portrayal and comparison of magnetic anomalies, the IGRF is used as a common datum for removal of regional gradients from magnetic survey measurements. This
openaire   +1 more source

Should IGRF data be commercialized?

open access: yesEos, Transactions American Geophysical Union, 1990
At the 1989 International Association of Geomagnetism and Aeronomy meeting in Exeter, U.K., a proposal was presented to support geomagnetic observatories in the Third World by charging commercial users of the International Geomagnetic Reference Field a price for its use. The proposal guarantees research scientists free access to IGRF.
openaire   +1 more source

Early Solar Wind and Dynamo Magnetic Field Topology Predictions for (16) Psyche and Other Asteroids

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Asteroid (16) Psyche is a metal‐rich body that might record an ancient coherent magnetization if some relict crust or mantle is preserved. Herein, we use magnetohydrodynamic simulations to predict (16) Psyche's field topology for several distinct pathways: (i) an early solar wind‐induced magnetization imparted after a larger body was impacted,
Atma Anand   +3 more
wiley   +1 more source

The problem with IGRF commercialization

open access: yesEos, Transactions American Geophysical Union, 1991
I wish to comment on the news item, “Geomagnetic Reference Field: To License or Not to License?,” by Stuart and others, which appeared in the February 19 issue of Eos. It is important to recall some of the history of establishing an International Geomagnetic Reference Field (IGRF) and the conditions that prevailed before the field was standardized ...
openaire   +1 more source

Role of Complex Crustal and Basinal Structures in Onset of an Intracratonic Rift System: An Example From the Onshore Potiguar Basin, Brazilian Equatorial Margin

open access: yesBasin Research, Volume 38, Issue 2, March/April 2026.
Schematic evolution model of the Onshore Potiguar Basin, illustrating the role of complex crustal and basinal structures in the onset of this intracratonic rift system in NE Brazilian Equatorial Margin. Red arrows indicate the extensional direction and coloured areas on the surface are the Self‐Organizing Maps populations related to crystalline ...
David L. de Castro   +5 more
wiley   +1 more source

Geomagnetism : review 2010 [PDF]

open access: yes, 2011
The Geomagnetism team measures, records, models and interprets variations in the Earth’s natural magnetic fields, across the world and over time. Our data and expertise help to develop scientific understanding of the evolution of the solid Earth and ...

core  

The Spectrum of the 4-Generation Dirac-Kaehler Extension of the SM

open access: yes, 2010
We compute the mass spectrum of the fermionic sector of the Dirac-Kaehler extension of the SM (DK-SM) by showing that there exists a Bogoliubov transformation that transforms the DK-SM into a flavor U(4) extension of the SM (SM-4) with a particular ...
Abbas   +20 more
core   +1 more source

MISTA candidate magnetic field models for IGRF-14 derived from MSS-1, Swarm and observatory data

open access: yesEarth, Planets and Space
The International Geomagnetic Reference Field (IGRF) is a spherical harmonic model representing the large-scale Earth’s main magnetic field and its secular variation (SV).
Hongbo Yao   +10 more
doaj   +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

International Geomagnetic Reference Field: the 12th generation [PDF]

open access: yes, 2015
The 12th generation of the International Geomagnetic Reference Field (IGRF) was adopted in December 2014 by the Working Group V-MOD appointed by the International Association of Geomagnetism and Aeronomy (IAGA).
Alken, Patrick   +47 more
core   +4 more sources

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