Results 11 to 20 of about 6,510 (310)

Characterization of the South Atlantic Anomaly [PDF]

open access: yesNonlinear Processes in Geophysics, 2019
This research intends to characterize the South Atlantic Anomaly (SAA) by applying the power spectrum analysis approach. The motivation to study the SAA region is due to its nature. A comparison was made between the stations in the SAA region and outside
K. A. Nasuddin   +3 more
doaj   +1 more source

NEW INTERPRETATION OF THE EARTH’S MAGNETIC FIELD EFFECTS’ ON LIFE

open access: yesIraqi Geological Journal, 2020
The relationships of the Earth’s magnetic field intensity and time (the past 320 years) for many locations around the world are obtained, based on the IGRF-13 mathematical model. The results showed that each location on the earth surface has its magnetic
Hijab, Basim
doaj   +1 more source

Rapid Variations of Earth’s Core Magnetic Field [PDF]

open access: yesSurveys in Geophysics, 2022
AbstractEvidence of fast variations in the Earth’s core field are seen both in magnetic observatory and satellite records. We present here how they have been identified at the Earth’s surface from ground-based observatory records and how their spatio-temporal structure is now characterised by satellite data. It is shown how their properties at the core
Lesur, V.   +3 more
openaire   +5 more sources

Research on WMM-00 geomagnetic field model accuracy in Lithuanian territory

open access: yesGeodesy and Cartography, 2012
The development of surveying technology gives the possibility for a detailed exploration of physical processes on the Earth’s surface. The satellite geomagnetic surveys, the precise geomagnetic surveys in magnetic observatories, the measurement at repeat
Romuald Obuchovski
doaj   +1 more source

Earth's core variability from magnetic and gravity field observations [PDF]

open access: yesSolid Earth, 2023
The motions of the liquid within the Earth's outer core lead to magnetic field variations together with mass distribution changes. As the core is not accessible for direct observation, our knowledge of the Earth’s liquid core dynamics only relies on ...
A. T. Saraswati   +3 more
doaj   +1 more source

Magnetic field fluctuations across the Earth’s bow shock [PDF]

open access: yesAnnales Geophysicae, 2001
We present a statistical analysis of 132 dayside (LT 0700-1700) bow shock crossings of the AMPTE/IRM spacecraft. We perform a superposed epoch analysis of low frequency, magnetic power spectra some minutes up-stream and downstream of the bow shock ...
A. Czaykowska   +7 more
doaj   +1 more source

Induction effects on ionospheric electric and magnetic fields [PDF]

open access: yesAnnales Geophysicae, 2005
Rapid changes in the ionospheric current system give rise to induction currents in the conducting ground that can significantly contribute to magnetic and especially electric fields at the Earth's surface.
H. Vanhamäki, A. Viljanen, O. Amm
doaj   +1 more source

Sequential modelling of the Earth’s core magnetic field

open access: yesEarth, Planets and Space, 2020
We describe a new, original approach to the modelling of the Earth’s magnetic field. The overall objective of this study is to reliably render fast variations of the core field and its secular variation.
Guillaume Ropp   +3 more
doaj   +1 more source

Research on Gesture Recognition System Using Multiple Sensors Based on Earth’s Magnetic Field and 1D Convolution Neural Network

open access: yesApplied Sciences, 2023
A commonly used method of gesture recognition is the use of sensor technology. Typically, technology detecting Earth’s magnetic field is used in indoor positioning, and magnetic detection technology serves as a redundant method for gesture recognition ...
Bo Shi   +4 more
doaj   +1 more source

Mantle Electrical Conductivity and the Magnetic Field at the Core–Mantle Boundary

open access: yesFluids, 2021
The Earth’s magnetic field is measured on and above the crust, while the turbulent dynamo in the outer core produces magnetic field values at the core–mantle boundary (CMB).
John V. Shebalin
doaj   +1 more source

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