Results 161 to 170 of about 1,592 (183)

On IGRF models for 1945–1985

Physics of the Earth and Planetary Interiors, 1987
Abstract Several candidate models for 1945 are compared and models for 1945–1990 are estimated in terms of the eccentric dipole.
N.P. Ben'kova, T.N. Bondar', V.P. Golovkov, G.I. Kolomiitseva   +3 more
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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

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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Evaluation of the 1985–1990 IGRF secular variation candidates

Physics of the Earth and Planetary Interiors, 1987
Abstract The IGRF secular variation model for 1985–1990 was adopted by the International Association of Geomagnetism and Aeronomy at its Prague meeting in August 1985 as an average of the three candidate models submitted to the committee. We compared the three models at epoch 1985.0 against each other and against a new model based on observatory data
Joseph C. Cain, Christopher Kluth
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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.
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BILCAL/IGRF (1987)

Planetary and Space Science, 1992
openaire   +1 more source

Geomagnetic Field, IGRF

Encyclopedia of Earth Sciences Series, 2021
Aude Chambodut
exaly  

IGRF

2009
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Geomagnetic Field, IGRF

2011
openaire   +2 more sources