Results 91 to 100 of about 12,396 (189)
Earth, Planets and Space, 2018 The European Space Agency’s three-satellite constellation Swarm, launched in November 2013, has provided unprecedented monitoring of Earth’s magnetic field via a unique set of gradiometric and multi-satellite measurements from low Earth orbit.
Terence J. Sabaka +3 more
doaj +1 more source
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.
core +1 more source
Solar Influences on Geomagnetic and Related Phenomena [PDF]
, 1961 Solar influences on geomagnetic and related ...
Vestine, E. H.
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Investigation of global lightning using Schumann resonances measured by high frequency induction coil magnetometers in the UK [PDF]
, 2013 In June 2012, the British Geological Survey (BGS) Geomagnetism team installed two high frequency (100 Hz) induction coil magnetometers at the Eskdalemuir Observatory, in the Scottish Borders of the United Kingdom. The induction coils permit us to measure
Beggan, Ciaran D., Thomson, Alan
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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
doaj +1 more source
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
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.
core +1 more source
, 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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