Results 11 to 20 of about 92,578 (242)

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

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

Fluctuating gravity of Earth’s core [PDF]

open access: yes, 2012
For centuries, we have known that Earth’s magnetic field varies with time. Edmond Halley (better known for his eponymous recurring comet) first recognized this time variation of magnetic compass needle direction and even offered a remarkable theory that ...
Stevenson, David J.
core   +1 more source

Scale disparities and magnetohydrodynamics in the Earth’s core [PDF]

open access: yes, 2000
Fluid motions driven by convection in the Earth’s fluid core sustain geomagnetic ­ fields by magnetohydrodynamic dynamo processes. The dynamics of the core is critically influenced by the combined effects of rotation and magnetic ­ fields.
Gubbins, D., Zhang, K.
core   +1 more source

Study on Solar Proton Events in the Sun - Induced Earth’s Magnetic Field Atmospheric Variations

open access: yesInternational Journal of Science and Engineering Invention, 2017
Estimation has been made for the most powerful solar proton events recorded in the Earth environment during 1976 - 2015. This study has been done in association with other related activities such as Sunspot numbers and Solar flare index, the Earth’s magnetic field variation H constant, Dst index, Ap index and Kp index data from Kyoto data centre and ...
M. V. Subramanian   +4 more
openaire   +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

Avian magnetoreception: elaborate iron mineral containing dendrites in the upper beak seem to be a common feature of birds [PDF]

open access: yes, 2010
The magnetic field sensors enabling birds to extract orientational information from the Earth’s magnetic field have remained enigmatic. Our previously published results from homing pigeons have made us suggest that the iron containing sensory dendrites ...
Falkenberg, Gerald   +8 more
core   +3 more sources

Magnetic Declination and Space Weather: A possible mechanism in Climate Change and Weather Forecast [PDF]

open access: yesE3S Web of Conferences
Numerous studies have been published on the contribution of Earth’s magnetic field to Earth’s climate. Most of them are being focused on the upper atmosphere and the caused effects in the conductivity of the ionosphere, the transport processes of ...
Kampolis Dimitrios
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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