Results 31 to 40 of about 3,303 (168)

The Mag.num core field model as a parent for IGRF-13, and the recent evolution of the South Atlantic Anomaly

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, M. Korte, A. Morschhauser, F. Vervelidou, J. Matzka, C. Stolle   +5 more
doaj   +1 more source

Model 2D of Subsurface Structures in the Dempo Magnetic Area of Pagar Alam City Using Geomagnetic Method

Jurnal Kumparan Fisika, 2023
ABSTRAK   Metode geomagnetik digunakan dalam penelitian ini untuk membuat model 2D struktur bawah permukaan di kawasan Dempo Magnet kota Pagar Alam berdasarkan sebaran anomali. Terdapat 48 titik pengukuran pada lokasi penelitian.
Febri Adrianto Adrianto, Refrizon, Arif Ismul Hadi   +2 more
doaj   +1 more source

A new permanent geomagnetic station at Colima volcano observatory, Mexico [PDF]

Geofísica Internacional, 2000
The first geomagnetic station (COV) has been installed near Colima volcano by the Geophysics Institute of the National Autonomous University of Mexico, and Colima Volcano Observatory at the University of Colima.
Juan José Ramírez, Ricardo Becerril, René Chávez, Francisco Correa-Mora, Jaime Urrutia-Fucugauchi, Enrique Cabral-Cano, Gerardo Cifuentes-Nava, Esteban Hernández-Quintero   +7 more
doaj  

Evaluación preliminar del campo geomagnético de referencia internacional IGRF-1990 para México y anomalías magnéticas corticales

Geofísica Internacional, 1994
Se reporta una comparación regional entre el International Geomagnetic Reference Field (IGRF) para 1990 y medidas geomagneticas de campo obtenidas en 51 localidades del pais.
E. Hernández-Quintero, H. Nolasco-Chavez, J. O. Campos-Enríquez, C. Cañón-Amaro, A. Orozco Torres, J. Urrutia-Fucugauchi, G. Álvarez-García   +6 more
doaj   +1 more source

IZMIRAN candidate field model for IGRF-13

Earth, Planets and Space, 2021
The International Geomagnetic Reference Field (IGRF) model is a combination of the several models developed by independent groups of scientists using different approaches for the selection of input data and methods for calculating harmonic coefficients ...
Valeriy G. Petrov, Tatyana N. Bondar
doaj   +1 more source

Shannon information of the geomagnetic field for the past 7000 years [PDF]

Nonlinear Processes in Geophysics, 2010
The present behaviour of the geomagnetic field as expressed by the International Geomagnetic Reference Field (IGRF) deserves special attention when compared with that shown over the past few thousands of years by two paleomagnetic/archeomagnetic models ...
A. De Santis, E. Qamili
doaj  

The International Geomagnetic Reference Field (IGRF) generation 12: BGS candidates and final models [PDF]

, 2015
The International Geomagnetic Reference Field (IGRF) model is a reference main field magnetic model updated on a quinquennial basis. The latest revision (generation 12) was released in January 2015.
Beggan, Ciaran D., Hamilton, Brian, Macmillan, Susan, Taylor, Victoria, Thomson, Alan   +4 more
core  

Mechanisms of Body Alignment in a Diurnal Songbird Migrant

Ethology, Volume 132, Issue 6, Page 399-411, June 2026.
The graphical abstract illustrates the body alignment mechanism of a diurnal songbird migrant, the dunnock (Prunella modularis). Dunnocks consistently expressed an angular body alignment, with inter‐individual variation at the level of the population.
Christina Spiliopoulou, Giuseppe Bianco, Mihaela Ilieva, Susanne Åkesson   +3 more
wiley   +1 more source

Geomagnetic jerks in the Swarm Era [PDF]

, 2016
The timely provision of geomagnetic observations as part of the ESA Swarm mission means analysis and modelling can be conducted rapidly and kept up-to-date in a manner not possible before.
Beggan, Ciaran, Brown, William, Macmillan, Susan   +2 more
core   +1 more source

Evaluation of candidate geomagnetic field models for IGRF-12 [PDF]

, 2015
Background: The 12th revision of the International Geomagnetic Reference Field (IGRF) was issued in December 2014 by the International Association of Geomagnetism and Aeronomy (IAGA) Division V Working Group V-MOD (http://www.ngdc.noaa.gov/IAGA/vmod ...
Alken, Patrick, Beggan, Ciaran D., Canet, Elisabeth, Chulliat, Arnaud, Finlay, Christopher C., Langlais, Benoit, Lesur, Vincent, Lowes, Frank J., Manoj, Chandrasekharan, Rother, Martin, Schachtschneider, Reyko, Thébault, Erwan   +11 more
core   +4 more sources