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The use of geomagnetic field models in magnetic surveys [PDF]
The importance of global geomagnetic field models for the reduction of magnetic surveys is discussed. It is demonstrated that a numerical model with adequate secular variation correction, provides a suitable representation of the regional field.
Gain, J. C., Regan, R. D.
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Steady induction effects in geomagnetism. Part 1B: Geomagnetic estimation of steady surficial core motions: A non-linear inverse problem [PDF]
The problem of estimating a steady fluid velocity field near the top of Earth's core which induces the secular variation (SV) indicated by models of the observed geomagnetic field is examined in the source-free mantle/frozen-flux core (SFI/VFFC ...
Voorhies, Coerte V.
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Solar Influences on Geomagnetic and Related Phenomena [PDF]
, 1961 Solar influences on geomagnetic and related ...
Vestine, E. H.
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Observations of, and sources of the spatial and temporal variability of ozone in the middle atmosphere on climatological time scales (OZMAP) and equatorial dynamics: Seasonal variations of ozone trends [PDF]
The long term trends (least square linear regression with time) of ozone content at seven European, seven North American, three Japanese and two tropical stations during 21 years (1964 to 1984) are analyzed.
Entzian, G. +2 more
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Geophysical Research LettersUnderstanding the effects of east‐west component of interplanetary magnetic field (IMF‐By) on the equatorial ionospheric electrodynamics is challenging due to the complex response caused by the simultaneous occurrence of multiple mechanisms during ...
Geeta Vichare, Mala S. Bagiya
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A global magnetic anomaly map [PDF]
A subset of POGO satellite magnetometer data has been formed that is suitable for analysis of crustal magnetic anomalies. Using a thirteenth order field model, fit to these data, magnetic residuals have been calculated over the world to latitude limits ...
Cain, J. C., Davis, W. M., Regan, R. D.
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, 2005 After describing all the contradictions associated with the current Plate Tectonics theory, this paper proposes a model where a single cause can explain all geophysical and geological phenomena.
Rousseau, André
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Geomagnetic field variability: geomagnetic dynamo and helical distributed chaos
, 2020 It is shown that helicity dynamics dominates the thermal convection-driven geomagnetic field variability. The notion of the distributed chaos has been used for this purpose. The large-scale circulation in the Earth's outer (metallic liquid) core is especially sensitive to the helicity dynamics and its chaotic reversals can be associated with the ...
openaire +3 more sources
Open Access Journals / Institutional Repositories [PDF]
, 2008 Düpow, Heidi +2 more
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