Results 1 to 10 of about 118 (104)

Bats respond to very weak magnetic fields. [PDF]

open access: yesPLoS ONE, 2015
How animals, including mammals, can respond to and utilize the direction and intensity of the Earth's magnetic field for orientation and navigation is contentious.
Lan-Xiang Tian   +4 more
doaj   +2 more sources

Excursions, Reversals, and Secular Variation: Different Expressions of a Common Mechanism?

open access: yesGeochemistry, Geophysics, Geosystems
Fluctuations in the geomagnetic field occur over a broad range of timescales. Short‐period fluctuations are called secular variation, whereas excursions and reversals are viewed as anomalous transient events.
Bruce A Buffett
exaly   +2 more sources

Simple stochastic model for geomagnetic excursions and reversals reproduces the temporal asymmetry of the axial dipole moment [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2021
L Dinis   +2 more
exaly   +2 more sources

GEOMAGNETIC EXCURSION RECORD PRESERVED IN THE SPELEOTHEM FROM WESTERN CAUCASUS: FIRST DATA

open access: yesГеодинамика и тектонофизика, 2022
The study of the geomagnetic field evolution on minor timescales, in particular of such significant events as geomagnetic reversals and excursions, has acquired particular relevance nowadays due to the increased attention of mankind to the environment ...
D. A. Gavriushkin   +3 more
doaj   +1 more source

Are Paleomagnetic Records From U‐Channels Appropriate for Studies of Reversals and Excursions? [PDF]

open access: yesGeochemistry, Geophysics, Geosystems, 2018
Edouard G H Philippe   +2 more
exaly   +2 more sources

MECHANISM OF GEOMAGNETIC JERKS [PDF]

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2017
Mechanism of geomagnetic jerks evident from the model of the hot Earth magnetic field is discussed here. Similar in their principle, reversals, excursions and jerks result from auto adjusting of temperature of the phase change (PC) “evaporation ...
V.V. Kuznetsov
doaj   +1 more source

Indicators of mantle control on the geodynamo from observations and simulations

open access: yesFrontiers in Earth Science, 2022
There has been longstanding controversy about whether the influence of lateral variations in core-mantle boundary heat flow can be detected in paleomagnetic records of geomagnetic field behavior. Their signature is commonly sought in globally distributed
Monika Korte   +3 more
doaj   +1 more source

Unveiling Geomagnetic Reversals: Insights From Tipping Points Theory

open access: yesGeophysical Research Letters, 2023
The geomagnetic field shows aperiodic reversals and excursions separated by stable polarity periods. Although the exact mechanisms responsible of reversals are still debated, several models of different complexity have been proposed. Here we use, for the
T. Alberti   +3 more
doaj   +1 more source

A new inclination-based method to evaluate the global geomagnetic configuration and axial dipole moment

open access: yesEarth and Planetary Physics, 2022
The strength and configuration of the geomagnetic field control the average shape of the magnetosphere. The pure dipole assumption and the virtual dipole moment (VDM), determined by individual records, have been widely adopted to evaluate the strength of
KaiHua Xu   +6 more
doaj   +1 more source

Effects of the Laschamps Excursion on Geomagnetic Cutoff Rigidities

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Today's geomagnetic field can prevent energetic particles, including solar energetic particles and galactic cosmic rays, from directly hitting the Earth's atmosphere.
Jiawei Gao   +4 more
doaj   +1 more source

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