Results 11 to 20 of about 24,900,530 (148)

International Geomagnetic Reference Field: the thirteenth generation [PDF]

open access: yesEarth, Planets and Space, 2021
In December 2019, the International Association of Geomagnetism and Aeronomy (IAGA) Division V Working Group (V-MOD) adopted the thirteenth generation of the International Geomagnetic Reference Field (IGRF). This IGRF updates the previous generation with
P. Alken   +64 more
doaj   +2 more sources

A 2015 International Geomagnetic Reference Field (IGRF) candidate model based on Swarm’s experimental absolute magnetometer vector mode data [PDF]

open access: yesEarth, Planets and Space, 2015
Abstract Each of the three satellites of the European Space Agency Swarm mission carries an absolute scalar magnetometer (ASM) that provides the nominal 1-Hz scalar data of the mission for both science and calibration purposes. These ASM instruments, however, also deliver autonomous 1-Hz experimental vector data.
Vigneron, Pierre   +12 more
openaire   +5 more sources

Using improved Swarm’s experimental absolute vector mode data to produce a candidate Definitive Geomagnetic Reference Field (DGRF) 2015.0 model

open access: yesEarth, Planets and Space, 2021
We describe the way a global model of the geomagnetic field has been built using vector field data acquired by the absolute scalar magnetometers (ASM) running in vector mode on board the Alpha and Bravo satellites of the European Space Agency (ESA) Swarm
Pierre Vigneron   +3 more
doaj   +2 more sources

International geomagnetic reference field: the fourteenth generation [PDF]

open access: yesEarth, Planets and Space
In November 2024, the International Association of Geomagnetism and Aeronomy (IAGA) Division V Working Group (V-MOD) adopted the fourteenth generation of the International Geomagnetic Reference Field (IGRF). This IGRF updates the previous generation with
C. D. Beggan   +84 more
doaj   +2 more sources

Testing Geomagnetic Reference Field models for 1990-2000 with data from the Trelew Geomagnetic Observatory, Argentina [PDF]

open access: yesGeofísica Internacional, 2003
Every five years a new International Geomagnetic Reference Field (IGRF) model is released and the secular variation for the previous period is updated, producing the definitive DGRF model.
Marta E. Ghidella   +2 more
doaj   +1 more source

Geomagnetic Impulses and the Electrical Conductivity of the Lower Mantle [PDF]

open access: yes, 1991
This thesis is an investigation of the changes in the magnetic field as measured at the surface of the Earth on the time-scale of months to decades. In particular the phenomena of geomagnetic "impulses" or "jerks" are investigated.
Stewart, Douglas Norman
core   +7 more sources

Bootstrapping Swarm and observatory data to generate candidates for the DGRF and IGRF-13

open access: yesEarth, Planets and Space, 2020
As posted by the Working Group V of the International Association of Geomagnetism and Aeronomy (IAGA), the 13th generation of the International Geomagnetic Reference Field (IGRF) has been released at the end of 2019.
F. Javier Pavón-Carrasco   +5 more
doaj   +1 more source

NOAA/NCEI and University of Colorado candidate models for IGRF-13

open access: yesEarth, Planets and Space, 2021
The International Geomagnetic Reference Field (IGRF) is a set of parameters representing the large-scale internal part of Earth’s magnetic field. The 13th generation IGRF requested candidate models for a definitive main field for 2015.0, a provisional ...
P. Alken, A. Chulliat, M. Nair
doaj   +1 more source

The International Geomagnetic Reference Field (IGRF) generation 12: BGS candidates and final models [PDF]

open access: yes, 2015
The International Geomagnetic Reference Field (IGRF) model is a reference main field magnetic model updated on a quinquennial basis. The latest revision (generation 12) was released in January 2015.
Thomson, Alan   +4 more
core   +3 more sources

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