Results 81 to 90 of about 537 (162)

Geomagnetic core field models and secular variation forecasts for the 13th International Geomagnetic Reference Field (IGRF-13)

open access: yesEarth, Planets and Space, 2020
Observations of the geomagnetic field taken at Earth’s surface and at satellite altitude are combined to construct continuous models of the geomagnetic field and its secular variation from 1957 to 2020.
I. Wardinski   +6 more
doaj   +1 more source

A Hierarchical Bayesian Model for the Global Holocene Geomagnetic Field

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract We present a hierarchical Bayesian model of the global geomagnetic field for the last 8,000 years. The model is built solely with thermoremanent records, which include archeomagnetic and volcanic data. Building upon previous work, this model includes fewer approximations and treats model hyperparameters as probabilistic variables.
M. A. Schanner, S. Panovska, M. Korte
wiley   +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  

Assessment of IGRF Candidate Models over the Indian Region.

open access: yesJournal of geomagnetism and geoelectricity, 1992
The five candidate models for DGRF 1985 and IGRF 1990 developed by IZMIRAN, US/UK, USGS and two models of GSFC, are assessed over the Indian region, using observatory and repeat survey stations data for period 1985-1990. The results indicate that no model is dramatically better than the other.
SINGH, B. P.   +4 more
openaire   +2 more sources

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

Local gravity network as a reference station for the IGRF

open access: yes, 2019
The newly created International Gravity Reference Frame (IGRF) will heavily rely on widely distributed reference stations. It is required that at any time of the year the instantaneous value of gravity will be available at such reference stations.
Ilya, Oshchepkov, Sermyagin Roman
openaire   +1 more source

Shannon information of the geomagnetic field for the past 7000 years [PDF]

open access: yesNonlinear Processes in Geophysics, 2010
The present behaviour of the geomagnetic field as expressed by the International Geomagnetic Reference Field (IGRF) deserves special attention when compared with that shown over the past few thousands of years by two paleomagnetic/archeomagnetic models ...
A. De Santis, E. Qamili
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

Second generation of CSES global geomagnetic field model (CGGM-2) and associated candidate models for IGRF-14

open access: yesEarth, Planets and Space
This paper presents the second generation of the China Seismo-Electromagnetic Satellite (CSES) Global Geomagnetic Field Model (CGGM-2), specifically designed to derive candidate models for the fourteenth generation of the International Geomagnetic ...
Yanyan Yang   +25 more
doaj   +1 more source

Unusual behaviour of the IGRF during the 1945–1955 period [PDF]

open access: yesEarth, Planets and Space, 2014
The International Geomagnetic Reference Field (IGRF) for 1900–2000 is testedin this paper. A peculiar behaviour is found in the time variations of higher-degree coefficients of the IGRF models. During the 1945–1955 period the spherical harmonic coefficients g n m and h n
openaire   +1 more source

Home - About - Disclaimer - Privacy