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Regional geomagnetic field model for Croatia
2015Geomagnetic components at Croatian repeat stations and ground survey sites, as well as European observatories and repeat stations, were used to obtain a regional geomagnetic model over Croatia at 2009.5 epoch. Different models were derived, depending on input data, and the modelling techniques were Adjusted Spherical Harmonic Analysis and Spherical ...
Vujić, Eugen +3 more
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An Overview of Geomagnetic Field Models
1980Abstract : Over the last decade, the utility of geomagnetic field models or the mathematical representations of the geomagnetic field has expanded considerably, both for civilian and military applications. Such an increase has been accompanied with more interest in models and demands for better accuracies with resultant changes in techniques of model ...
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Local-Geomagnetic-Field Modeling Improves Directional Surveying
Journal of Petroleum Technology, 2000This article is a synopsis of paper SPE 56699, "Local-Geomagnetic- Field Modeling Closes the Gap Between MWD and Gyro Directional Surveying," by Tor Inge Waag, Sintef Petroleum Research A/S; Torgeir Torkildsen, Statoil; Odd Helge Inderhaug, Norsk Hydro; and Inge M.
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A model for transition fields during geomagnetic reversals
Nature, 1988Palaeomagnetic studies of the reversal of the geomagnetic field have produced a number of palaeomagnetic records of intermediate or transition fields during reversals. These transition fields may provide an important clue as to the nature of the geodynamo. During the last reversal, the geomagnetic field was no longer dipolar1, but the field appeared to
I. Williams, R. Weeks, M. Fuller
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Mathematical Properties Relevant to Geomagnetic Field Modeling
2010Geomagnetic field modeling consists in converting large numbers of magnetic observations into a linear combination of elementary mathematical functions that best describes those observations.The set of numerical coefficients defining this linear combination is then what one refers to as a geomagnetic field model. Such models can be used to produce maps.
Terence J. Sabaka +2 more
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A Predictive Geomagnetic Field Model for Epoch 1990.5
1990Abstract : An epoch 1990.0 geomagnetic field model will be produced by the Naval Oceanographic Office (NAVOCEANO) using magnetic field measurements from the recently launched (April 1990) Polar Orbiting Geomagnetic Survey satellite for part of the input data.
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A geomagnetic field model for the Holocene based on archaeomagnetic and lava flow data
Earth and Planetary Science Letters, 2014Maria Luisa Osete +2 more
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One Hundred Thousand Years of Geomagnetic Field Evolution
Reviews of Geophysics, 2019Sanja Panovska +2 more
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Geomagnetic field intensity and reversals during the past four million years
Nature, 1993Jean-Pierre Valet, Laure Meynadier
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Chaotic dynamics and chaos control for the fractional-order geomagnetic field model
Chaos, Solitons and Fractals, 2019Abdulrahman Al-Khedhairi +2 more
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