Results 31 to 40 of about 5,592 (185)
Journal of Big Data, 2023 The effectiveness of machine learning models can be significantly averse to redundant and irrelevant features present in the large dataset which can cause drastic performance degradation.
Yuhua Yin +6 more
doaj +1 more source
A template of atmospheric O2 circularly polarized emission for CMB experiments
, 2011 We compute the circularly polarized signal from atmospheric molecular oxygen. Polarization of O2 rotational lines is caused by Zeeman effect in the Earth magnetic field.
A. Tartari +26 more
core +3 more sources
Eos, Transactions American Geophysical Union, 1992 The International Geomagnetic Reference Field (IGRF) is a series of mathematical models of the main geomagnetic field and its secular variation. Each model consists of a set of spherical harmonic (or Gauss) coefficients, the g's and h's in a series expansion of the following geomagnetic potential.
openaire +1 more source
Earth, Planets and Space, 2021 We present the GFZ candidate field models for the $$13{\mathrm{th}}$$ 13 th Generation International Geomagnetic Reference Field (IGRF-13). These candidates were derived from the Mag.num.IGRF13 geomagnetic core field model, which is constrained by Swarm
M. Rother +5 more
doaj +1 more source
Quasi‐Trapped Zebra Stripes: Radial Transport Driven by Dual‐Pulse Electric Fields
Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract Energetic electron spectra in Earth's inner radiation belt often exhibit regular stripe‐like features, known as “zebra stripes,” which are typically attributed to the drift motion of stably‐trapped electrons disturbed by electric field perturbations.
Ziyang Wang +5 more
wiley +1 more source
Geomagnetism : review 2009 [PDF]
, 2010 The Geomagnetism team measures, records, models and interprets variations in the Earth’s natural magnetic fields, across the world and over time. Our data and expertise help to develop scientific understanding of the evolution of the solid Earth and its ...
Thomson, Alan W.P.
core
Numerical analysis of lognormal diffusions on the sphere
, 2016 Numerical solutions of stationary diffusion equations on the unit sphere with isotropic lognormal diffusion coefficients are considered. H\"older regularity in $L^p$ sense for isotropic Gaussian random fields is obtained and related to the regularity of ...
Herrmann, Lukas +2 more
core +1 more source
Sedimentary Iron Cycling and the Origin and Preservation of Magnetization in Platform Carbonate Muds, Andros Island, Bahamas [PDF]
, 2007 Carbonate muds deposited on continental shelves are abundant and well-preserved throughout the geologic record because shelf strata are difficult to subduct and peritidal carbonate units often form thick, rheologically strong units that resist ...
Bosak, Tanja +8 more
core +1 more source
A Bayesian Approach to F‐Region Mesoscale Flow Estimation With EISCAT_3D
Earth and Space Science, Volume 13, Issue 4, April 2026.Abstract The ionospheric electric field is a key parameter for understanding ionospheric electrodynamics and the magnetosphere–ionosphere coupling. Several methods have been developed to reconstruct the two‐dimensional distribution of the ionospheric electric field from line‐of‐sight (LOS) ion velocities observed by incoherent scatter radars ...
Mizuki Fukizawa +6 more
wiley +1 more source
Data Science Journal, 2011 NGII(National Geography Information Institute) of Korea consigned KIGAM(Korea Institute of Geoscience & Mineral Resources) to do absolute geomagnetic measurements on 32 geomagnetic repeat stations evenly distributed on the southern part of Korean ...
Mutaek Lim +4 more
doaj +1 more source