Results 21 to 30 of about 13,117,941 (259)

Modeling and Predicting the Short‐Term Evolution of the Geomagnetic Field [PDF]

Journal of Geophysical Research: Solid Earth, 2018
AbstractWe propose a reduced dynamical system describing the coupled evolution of fluid flow and magnetic field at the top of the Earth's core between the years 1900 and 2014. The flow evolution is modeled with a first‐order autoregressive process, while the magnetic field obeys the classical frozen flux equation.
Bärenzung, Julien, Holschneider, Matthias, Wicht, Johannes, Sanchez, Sabrina, Lesur, Vincent   +4 more
openaire   +6 more sources

Co-estimation of geomagnetic field and in-orbit fluxgate magnetometer calibration parameters

Earth, Planets and Space, 2020
For the past 20 years, state of the art geomagnetic core field models have relied heavily on magnetic measurements made from space-based instrumentation.
Patrick Alken, Nils Olsen, Christopher C. Finlay   +2 more
doaj   +1 more source

Simulation experiment to test strategies of geomagnetic navigation during long-distance bird migration

Movement Ecology, 2021
Background Different theories suggest birds may use compass or map navigational systems associated with Earth’s magnetic intensity or inclination, especially during migratory flights.
Beate Zein, Jed A. Long, Kamran Safi, Andrea Kölzsch, Martin Wikelski, Helmut Kruckenberg, Urška Demšar   +6 more
doaj   +1 more source

A Model of the Geomagnetic Field at Epoch 1975 [PDF]

Geophysical Journal International, 1975
Summary The main magnetic field at epoch 1975 is defined by 168 spherical harmonic coefficients (those representing the internal part to degree and order 12). A further 80 coefficients (degree and order 8) define the secular variation and, in addition, 26 secular acceleration coefficients (those most significantly determined) are included.
D. R. Barraclough, J. M. Harwood, B. R. Leaton, S. R. C. Malin   +3 more
openaire   +1 more source

Co-estimating geomagnetic field and calibration parameters: modeling Earth’s magnetic field with platform magnetometer data

Earth, Planets and Space, 2021
Models of the geomagnetic field rely on magnetic data of high spatial and temporal resolution to give an accurate picture of the Earth’s internal magnetic field and its time-dependence.
Clemens Kloss, Christopher C. Finlay, Nils Olsen   +2 more
doaj   +1 more source

Multi-Variate LSTM Prediction of Alaska Magnetometer Chain Utilizing a Coupled Model Approach

Frontiers in Astronomy and Space Sciences, 2022
During periods of rapidly changing geomagnetic conditions electric fields form within the Earth’s surface and induce currents known as geomagnetically induced currents (GICs), which interact with unprotected electrical systems our society relies on.
Matthew Blandin, Hyunju K. Connor, Hyunju K. Connor, Doğacan S. Öztürk, Amy M. Keesee, Victor Pinto, Md Shaad Mahmud, Chigomezyo Ngwira, Shishir Priyadarshi   +8 more
doaj   +1 more source

Modeling of regional magnetic field applying spherical functions: theoretical aspect

Геофизический журнал, 2019
Observation of geomagnetic field, measurement of its components values and establishment on their base models of geomagnetic field as well as geomagnetic mapping are the main trend of geomagnetic studies.
Yu. P. Sumaruk, L. M. Yankiv-Vitkovska, B. B. Dzuman   +2 more
doaj   +1 more source

Forecasting changes of the magnetic field in the United Kingdom from L1 Lagrange solar wind measurements

Frontiers in Physics, 2022
Extreme space weather events can have large impacts on ground-based infrastructure important to technology-based societies. Machine learning techniques based on interplanetary observations have proven successful as a tool for forecasting global ...
Frederik Dahl Madsen, Ciarán D. Beggan, Kathryn A. Whaler   +2 more
doaj   +1 more source

Centennial to millennial geomagnetic field variations

Journal of Space Weather and Space Climate, 2012
Reconstructions of the geomagnetic field in the past represent a useful tool not only to investigate the geodynamo process, but also to estimate the effect of geomagnetic shielding for any studies on cosmogenic radionuclides and galactic cosmic rays.
Korte Monika, Muscheler Raimund
doaj   +1 more source

manojcnair/magnet-geomagnetic-field: MagNet competition winning solutions

, 2023
Winners of the MagNet: Model the Geomagnetic Field ...
Christine
core   +1 more source