Results 141 to 150 of about 537 (162)

A computation of IGRF over Nigeria

Global Journal of Geological Sciences, 2008
No Abstract. Global Journal of Geological Sciences Vol. 5 (1&2) 2007: pp.
Likkason, O K, Ajayi, C O, Shemang, E M
openaire   +2 more sources

The Analysis of the IGRF Error in the China Continent

Chinese Journal of Geophysics, 2003
AbstractIGRF (International Geomagnetic Reference Field) are the models of geomagnetic main field and secular variation. The IGRF errors are from the neglecting external field, the truncation of the spherical harmonic progress, the asymmetry of the observatory distribution, the measure, and the neglecting of the crust geomagnetic anomalies.
exaly   +2 more sources

Evaluation of IGRF candidate models over the Australian region

Physics of the Earth and Planetary Interiors, 1987
Abstract Observations of declination made at magnetic observatories and repeat stations distributed throughout the Australian region are used to assess the candidate main field models proposed for the IGRF epochs 1945, 1950, 1955, 1960 and 1980.
D.E. Winch, A.J. McEwin, C.E. Barton
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?????????????????? ???????? ???????????????????? ???? ?????????????????????? ???????????????????????????? ???????????????????? ?? ?????????????????? ???????????????? IGRF

2018
The maps of components of the main magnetic field for 1960, 1995 and 2000 and its secular variations for epoch 1958 and 1997,5 for Antarctic, constructed on supervision on the Antarctic observatories with 1958 on 2003 and to modelling calculations of a magnetic field by IGRF coefficients are presented.
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The current status of the IGRF and its relation to magnetic surveys

Geophysics, 1983
Abstract As aeromagnetic surveys covered increasingly larger areas and as the need arose for the compilation of adjacent surveys with significant time differences, there has been an increase in the use of geomagnetic field models for regional field definition.
openaire   +1 more source

Geomagnetic Field, IGRF

Encyclopedia of Earth Sciences Series, 2021
Aude Chambodut
exaly  

BILCAL/IGRF (1987)

Planetary and Space Science, 1992
openaire   +1 more source

IGRF

2009
openaire   +1 more source

Prediction of Group Delay Distribution Around Receiving Point Using Modified IRI Model and IGRF Model

Chinese Journal of Aeronautics, 2011
Zhaowen Yan, Dapeng Yu, Toyobur Rahman   +2 more
exaly  

Geomagnetic Field, IGRF

2012
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