Results 81 to 90 of about 66,786 (325)

Bursty Precipitation of Relativistic Electrons Unveiled by CIRBE/REPTile‐2 Measurements and Their Physical Implications

open access: yesAGU Advances, Volume 7, Issue 1, February 2026.
Abstract Energetic electron precipitation plays a pivotal role in shaping Earth's radiation belt dynamics and drives significant physical and chemical changes in the upper atmosphere. However, the detailed mechanisms governing the loss of relativistic electrons have remained unclear, largely due to the limited energy coverage and coarse resolution of ...
Zheng Xiang   +13 more
wiley   +1 more source

THE METHOD TO SOLVE DRIFT IN MAIN GEOMAGNETIC FIELD

open access: yesProceedings of the Mongolian Academy of Sciences, 2016
The method to solve the velocity of drift in MGF is written in this paper. This method is based on the dynamo theory for geomagnetic field. The velocity of drift in the main geomagnetic field is also solved from the condition that the power variation of ...
Gendenpuntsag Bayanjargal
doaj   +1 more source

The use of geomagnetic field models in magnetic surveys [PDF]

open access: yes
The importance of global geomagnetic field models for the reduction of magnetic surveys is discussed. It is demonstrated that a numerical model with adequate secular variation correction, provides a suitable representation of the regional field.
Gain, J. C., Regan, R. D.
core   +1 more source

Estimating the extremes in European geomagnetic activity [PDF]

open access: yes, 2009
Rapidly changing geomagnetic field variations constitute a natural hazard, for example in navigation and, through geomagnetically induced currents, to power grids and pipeline networks.
Dawson, Ewan, Reay, Sarah, Thomson, Alan
core  

Revisiting the Jurassic Geomagnetic Reversal recorded in the Lesotho Basalt (Southern Africa)

open access: yes, 2003
We carried out a detailed and continuous paleomagnetic sampling of the reversed to normal geomagnetic transition recorded by some 60 consecutive flow units near the base of the Lesotho Basalt (183  1 Ma).
Camps   +12 more
core   +2 more sources

Temporal Variations of the Three Geomagnetic Field Components at Colaba Observatory around the Carrington Storm in 1859

open access: gold, 2022
Hisashi Hayakawa   +5 more
openalex   +1 more source

Applying Hpo Indices to Empirical Thermospheric Density Models During Geomagnetic Storms

open access: yesEarth and Space Science, Volume 13, Issue 2, February 2026.
Abstract Accurate atmospheric drag modeling is essential for precise orbit determination and prediction of Low Earth Orbit satellites. A key component is the thermospheric density, typically estimated using empirical models driven by geomagnetic activity indices such as the 3‐hr Kp or ap.
Kemin Zhu   +5 more
wiley   +1 more source

Ground-based absolute magnetic survey on the backbone network of points of the secular passage in Ukraine for the era of 2005

open access: yesГеофизический журнал, 2010
The results of the geomagnetic field components on renewed Ukrainian repeat stations (RS) network are considered. The methods of absolute geomagnetic and astro-geodetic measurements are described, as well as methods of geomagnetic field reduction to ...
V. Yu. Maksimchuk   +5 more
doaj   +1 more source

On the Possibility of Driving the Electron Flux Probabilistic Models by the AE Index

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 2, February 2026.
Abstract We present the new probabilistic model of the electron fluxes designed to assess the risks of the spacecraft surface charging for missions with near‐equatorial orbits in the inner magnetosphere. It is a second model developed within a frame of the European Space Agency's activity “Plasma Environment Modeling in the Earth's Magnetosphere ...
S. Dubyagin   +8 more
wiley   +1 more source

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