Results 91 to 100 of about 1,592 (224)
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.Abstract We present a comprehensive multidisciplinary investigation of the Healy submarine volcano in the southern Kermadec arc, northeast of New Zealand. We show the first results of sidescan‐sonar data collected at a submarine arc volcano by an Autonomous Underwater Vehicle (AUV).
A. Bagnasco +6 more
wiley +1 more source
Geomagnetic jerks: impulses of secular variation in geophysics
, 2000 Geomagnetic records from some observatories give a strong indication that there was a rapid, impulsive change in geomagnetic secular acceleration around 1990.
De Michelis, P. +2 more
core +1 more source
Aurora‐Associated Geomagnetic Activity and Health: A Review With Focus on Neurological Implications
GeoHealth, Volume 10, Issue 6, June 2026.Health Impacts of Aurora‐Related Geomagnetic Activity. Image sources: segments of the figure were created using visuals from Wikipedia Commons, Pixabay, Flaticons, Pikbest, Pxhere, Publicdomainvectors, Openclipart, and Servier Medical Art, all licensed under Creative Commons. Abstract Geomagnetic activity (GMA), particularly during auroras, has emerged
Yashendra Sethi +6 more
wiley +1 more source
Annals of Geophysics, 2003 The updated version of the ITalian Geomagnetic Reference Field (ITGRF) for 2000.0 and its secular variation model up to 2005.0 are presented in this paper.
J. M. Torta +5 more
doaj +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.Abstract This study investigates the properties of power line harmonic radiation (PLHR), a type of electromagnetic emission generated by electric power networks. In particular, we analyze how the PLHR intensity varies in relation to geomagnetically induced currents (GICs), quasi‐DC currents driven by rapid changes in the geomagnetic field during space ...
K. Drastichová +3 more
wiley +1 more source
The geomagnetic secular variation 1900-1965
, 1968 Geomagnetic field secular variation /1900 to ...
Cain, J. C., Hendricks, S. J.
core
Candidate geomagnetic field models for IGRF-14 and secular acceleration since 2020
Earth, Planets and SpaceIGRF-14 is the fourteenth generation of the International Geomagnetic Reference Field (IGRF), a spherical harmonic model of Earth’s main magnetic field and its secular variation, developed through international collaboration under the auspices of the ...
Arnaud Chulliat, Manoj Nair, Sam Califf
doaj +1 more source
Testing Geomagnetic Reference Field models for 1990-2000 with data from the Trelew Geomagnetic Observatory, Argentina [PDF]
Geofísica Internacional, 2003 Every five years a new International Geomagnetic Reference Field (IGRF) model is released and the secular variation for the previous period is updated, producing the definitive DGRF model.
Marta E. Ghidella +2 more
doaj
Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.Abstract Capturing global ionospheric response during extreme geomagnetic storms remains a major observational challenge. During 10–11 May, 2024 superstorm, we investigate the height‐dependent response of the F‐region using multi‐constellation GNSS‐POD limb‐sounding measurements from COSMIC‐2, Spire, PlanetiQ, and FengYun‐3 satellites. Approximately 12,
Nimalan Swarnalingam +3 more
wiley +1 more source
Mapping geomagnetic secular variation at the core-mantle boundary [PDF]
, 2011 Data from recent satellite missions have vastly increased the resolution of models of the geomagnetic field, and its first and second time derivatives – secular variation (SV) and secular acceleration (SA). The spectra of both SV and SA are ‘blue’ at the
Olsen, N. +7 more
core +1 more source