Log in

Relevant bibliographies by topics / Geomagnetic field variations and reversals / Journal articles

To see the other types of publications on this topic, follow the link: Geomagnetic field variations and reversals.

Journal articles on the topic 'Geomagnetic field variations and reversals'

Author: Grafiati

Published: 10 March 2023

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Geomagnetic field variations and reversals.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Kocharov, G. E., A. V. Blinov, A. N. Konstantinov, and V. A. Levchenko. "Temporal 10Be and 14C Variations: A Tool for Paleomagnetic Research." Radiocarbon 31, no. 2 (1989): 163–68. http://dx.doi.org/10.1017/s0033822200044829.

Full text

Abstract:

Temporal variations of cosmogenic radionuclide atmospheric concentrations can be caused by such global phenomena as solar activity and geomagnetic field changes as well as atmospheric circulation processes. These causes can be distinguished by the comparison of several isotope records corresponding to the same time period. We discuss a possibility for reconstructing the geomagnetic moment during the last 30,000 years from the comparison of 10Be and 14C concentrations in terrestrial archives. The results agree with conventional paleomagnetic data and promise to enrich our knowledge of geomagnet

APA, Harvard, Vancouver, ISO, and other styles

2

Dobretsov, N. L., D. V. Metelkin, and A. N. Vasilevskiy. "Typical Characteristics of the Earth’s Magnetic and Gravity Fields Related to Global and Regional Tectonics." Russian Geology and Geophysics 62, no. 1 (2021): 6–24. http://dx.doi.org/10.2113/rgg20204261.

Full text

Abstract:

Abstract —We present a summary and analysis of current views on the magnetic and gravity fields of the Earth as a reflection of global and regional tectonic processes. The discussion concerns the probable interconnection between the distribution of the geomagnetic field characteristics, gravity anomalies and the manifestations of mantle plume magmatism as the most remarkable geologic indicator of deep geodynamics. We demonstrate that the distribution of the characteristics of the main geomagnetic field has a qualitative similarity to anomalies of the gravity field. Brief variations of the geom

APA, Harvard, Vancouver, ISO, and other styles

3

Kočí, Alois, and A. Janáčková. "Variations of the geomagnetic field at the time of reversals." Studia Geophysica et Geodaetica 29, no. 3 (1985): 280–89. http://dx.doi.org/10.1007/bf01638439.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Maffei, Stefano, Philip W. Livermore, Jon E. Mound, Sam Greenwood, and Christopher J. Davies. "Fast Directional Changes during Geomagnetic Transitions: Global Reversals or Local Fluctuations?" Geosciences 11, no. 8 (2021): 318. http://dx.doi.org/10.3390/geosciences11080318.

Full text

Abstract:

Paleomagnetic investigations from sediments in Central and Southern Italy found directional changes of the order of 10∘ per year during the last geomagnetic field reversal (which took place about 780,000 years ago). These values are orders of magnitudes larger than what is expected from the estimated millennial timescales for geomagnetic field reversals. It is yet unclear whether these extreme changes define the timescale of global dipolar change or whether they indicate a rapid, but spatially localised feature that is not indicative of global variations. Here, we address this issue by calcula

APA, Harvard, Vancouver, ISO, and other styles

5

Merrill, R. T., and P. L. McFadden. "Secular variation and the origin of geomagnetic field reversals." Journal of Geophysical Research 93, B10 (1988): 11589. http://dx.doi.org/10.1029/jb093ib10p11589.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Ryan, David A., and Graeme R. Sarson. "A coupled low order dynamo/turbulent shell model for geomagnetic field variations and reversals." Physics of the Earth and Planetary Interiors 188, no. 3-4 (2011): 214–34. http://dx.doi.org/10.1016/j.pepi.2011.09.003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Ultré-Guérard, Pascale, and José Achache. "Core flow instabilities and geomagnetic storms during reversals: The Steens Mountain impulsive field variations revisited." Earth and Planetary Science Letters 135, no. 1-4 (1995): 91–99. http://dx.doi.org/10.1016/0012-821x(95)00149-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

MOCHIZUKI, Nobutatsu, and Hideo TSUNAKAWA. "Geomagnetic Field Variations at the Beginning of the Polarity Reversal." Journal of Geography (Chigaku Zasshi) 114, no. 2 (2005): 194–200. http://dx.doi.org/10.5026/jgeography.114.2_194.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Pal, Poorna C. "The palaeogeomagnetic field strength, variations in reversal frequency, and geomagnetic dynamo models." Geophysical & Astrophysical Fluid Dynamics 44, no. 1-4 (1988): 189–205. http://dx.doi.org/10.1080/03091928808208885.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Abrahamsen, Niels, and Peter W. Readma. "Geomagnetic secular variation in Late Weichselian Allerød sediments from Nr. Lyngby (Denmark)." Bulletin of the Geological Society of Denmark 44 (March 15, 1997): 45–58. http://dx.doi.org/10.37570/bgsd-1998-44-03.

Full text

Abstract:

Palaeomagnetic measurements on 400 specimens from lake sediments exposed in the cliff of the classic Late Glacial Allerød site at Nørre Lyngby in North Jutland, Denmark, are presented. Two profiles in the 7 m sequence of sand, silt and gyttja, spanning the time interval between c. 12 000 and c. 10 700 BP show about 5 cycles in the declination and about 2 cycles in inclination. Secular variation features as observed at this site are also recognizable at sites in southern Sweden and Soviet Karelia. Comparisons with Holocene records indicate that the short time-scale behaviour (i.e. < 103 y) o

APA, Harvard, Vancouver, ISO, and other styles

11

Shcherbakova, V. V., A. J. Biggin, R. V. Veselovskiy, et al. "Was the Devonian geomagnetic field dipolar or multipolar? Palaeointensity studies of Devonian igneous rocks from the Minusa Basin (Siberia) and the Kola Peninsula dykes, Russia." Geophysical Journal International 209, no. 2 (2017): 1265–86. http://dx.doi.org/10.1093/gji/ggx085.

Full text

Abstract:

Abstract Defining variations in the behaviour of the geomagnetic field through geological time is critical to understanding the dynamics of Earth's core and its response to mantle convection and planetary evolution. Furthermore, the question of whether the axial dipole dominance of the recent palaeomagnetic field persists through the whole of Earth's history is fundamental to determining the reliability of palaeogeographic reconstructions and the efficacy of the magnetosphere in shielding Earth from solar wind radiation. Previous palaeomagnetic directional studies have suggested that the palae

APA, Harvard, Vancouver, ISO, and other styles

12

Silva, Regia Pereira, Jose Humberto Andrade Sobral, Daiki Koga, and Jonas Rodrigues Souza. "Evidence of prompt penetration electric fields during HILDCAA events." Annales Geophysicae 35, no. 5 (2017): 1165–76. http://dx.doi.org/10.5194/angeo-35-1165-2017.

Full text

Abstract:

Abstract. High-intensity, long-duration continuous auroral electrojet (AE) activity (HILDCAA) events may occur during a long-lasting recovery phase of a geomagnetic storm. They are a special kind of geomagnetic activity, different from magnetic storms or substorms. Ionized particles are pumped into the auroral region by the action of Alfvén waves, increasing the auroral current system. The Dst index, however, does not present a significant downward swing as it occurs during geomagnetic storms. During the HILDCAA occurrence, the AE index presents an intense and continuous activity. In this pape

APA, Harvard, Vancouver, ISO, and other styles

13

Nowaczyk, Norbert R., Jiabo Liu, and Helge W. Arz. "Records of the Laschamps geomagnetic polarity excursion from Black Sea sediments: magnetite versus greigite, discrete sample versus U-channel data." Geophysical Journal International 224, no. 2 (2020): 1079–95. http://dx.doi.org/10.1093/gji/ggaa506.

Full text

Abstract:

SUMMARY Magnetostratigraphic investigation of sediment cores from two different water depths in the SE Black Sea based on discrete samples, and parallel U-channels in one of the cores, yielded high-resolution records of geomagnetic field variations from the past about 68 ka. Age constrains are provided by three tephra layers of known age, accelerator mass spectrometry 14C dating, and by tuning element ratios obtained from X-ray fluorescence scanning to the oxygen isotope record from Greenland ice cores. Sedimentation rates vary from a minimum of ∼5 cm ka−1 in the Holocene to a maximum of ∼50 c

APA, Harvard, Vancouver, ISO, and other styles

14

Zotov, Oleg, Anatol Guglielmi, and Aleksandra Silina. "On possible relation of earthquakes with the sign change of the interplanetary magnetic field radial component." Solar-Terrestrial Physics 7, no. 1 (2021): 59–66. http://dx.doi.org/10.12737/stp-71202108.

Full text

Abstract:

This work is devoted to an experimental study of the possible relationship between earthquakes and interplanetary magnetic field (IMF) variations. For the analysis, we use world and regional catalogs of earthquakes and a catalog containing data on the IMF sector structure for several decades. The main methodological technique consists in a comparative analysis of the occurrence rate of earthquakes on the days when Earth crosses the boundary between IMF sectors with the days when Earth is inside the sector. The sign of the IMF radial component is utilized as an indicator of the events on which

APA, Harvard, Vancouver, ISO, and other styles

15

Prévot, Michel, Edward A. Mankinen, Robert S. Coe, and C. Sherman Grommé. "The Steens Mountain (Oregon) geomagnetic polarity transition: 2. Field intensity variations and discussion of reversal models." Journal of Geophysical Research 90, B12 (1985): 10417. http://dx.doi.org/10.1029/jb090ib12p10417.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Zotov, Oleg, Anatol Guglielmi, and Aleksandra Silina. "On possible relation of earthquakes with the sign change of the interplanetary magnetic field radial component." Solnechno-Zemnaya Fizika 7, no. 1 (2021): 74–83. http://dx.doi.org/10.12737/szf-71202108.

Full text

Abstract:

This work is devoted to an experimental study of the possible relationship between earthquakes and interplanetary magnetic field (IMF) variations. For the analysis, we use world and regional catalogs of earthquakes and a catalog containing data on the IMF sector structure for several decades. The main methodological technique consists in a comparative analysis of the occurrence rate of earthquakes on the days when Earth crosses the boundary between IMF sectors with the days when Earth is inside the sector. The sign of the IMF radial component is utilized as an indicator of the events on which

APA, Harvard, Vancouver, ISO, and other styles

17

Nowaczyk, N. R., E. M. Haltia, D. Ulbricht, et al. "Chronology of Lake El'gygytgyn sediments – a combined magnetostratigraphic, palaeoclimatic and orbital tuning study based on multi-parameter analyses." Climate of the Past 9, no. 6 (2013): 2413–32. http://dx.doi.org/10.5194/cp-9-2413-2013.

Full text

Abstract:

Abstract. A 318-metre-long sedimentary profile drilled by the International Continental Scientific Drilling Program (ICDP) at Site 5011-1 in Lake El'gygytgyn, Far East Russian Arctic, has been analysed for its sedimentologic response to global climate modes by chronostratigraphic methods. The 12 km wide lake is sited off-centre in an 18 km large crater that was created by the impact of a meteorite 3.58 Ma ago. Since then sediments have been continuously deposited. For establishing their chronology, major reversals of the earth's magnetic field provided initial tie points for the age model, con

APA, Harvard, Vancouver, ISO, and other styles

18

de Paor, A. "A theory of the Earth's magnetic field and of sunspots, based on a self-excited dynamo incorporating the Hall effect." Nonlinear Processes in Geophysics 8, no. 4/5 (2001): 265–79. http://dx.doi.org/10.5194/npg-8-265-2001.

Full text

Abstract:

Abstract. A new viewpoint on the generation and maintenance of the Earth's magnetic field is put forward, which integrates self-exciting dynamo theory with the possibility of energy coupling along orthogonal axes provided by the Hall effect. A nonlinear third-order system is derived, with a fourth equation serving as an observer of unspecified geophysical processes which could result in field reversal. Lyapunov analysis proves that chaos is not intrinsic to this system. Relative constancy of one of the variables produces pseudo equilibrium in a second order subsystem and allows for self-excita

APA, Harvard, Vancouver, ISO, and other styles

19

Chapanov, Yavor, and Daniel Gambis. "Solar-terrestrial energy transfer during sunspot cycles and mechanism of Earth rotation excitation." Proceedings of the International Astronomical Union 5, S264 (2009): 404–6. http://dx.doi.org/10.1017/s1743921309992997.

Full text

Abstract:

AbstractThe solar-terrestrial energy transfer, due to the total solar irradiance (TSI), solar wind and interplanetary magnetic field, has 11-year modulation during the sunspot cycles. Other oscillations of solar-terrestrial energy transfer are with periods of 22 and 45 year due to the magnetic reversal and equatorial solar asymmetry, which cause corresponding oscillations of all Earth systems, including climate and weather, atmosphere and ocean circulations, geomagnetic field and core processes. A part of this energy variation is transformed to oscillations of the Earth rotation. A model of in

APA, Harvard, Vancouver, ISO, and other styles

20

Garayeva, T. J., Z. A. Novruzov, and Kh A. Allakhverdiyeva. "Biomagnetostratigraphy of the Eastern Gobustan’s paleogene rocks." Scientific Petroleum, no. 1 (June 30, 2024): 2–10. http://dx.doi.org/10.53404/sci.petro.20240100050.

Full text

Abstract:

On the territory of Azerbaijan, Paleogene deposits are widespread and often have facies alteration. To address the issues of stratigraphic, paleogeography, facies and paleoecological directions, a detailed stratigraphic basis of both the region as a whole and its individual sections is required. This article presents the results of joint magnetobiostratigraphic studies of the Paleogene deposits of the Greater Caucasus (Azerbaijan) in order to clarify the boundaries of the Paleocene, Eocene, Oligocene and Miocene. Biostratigraphically dated Paleogene deposits of the Khilmili, Pirakushkul, Dzhan

APA, Harvard, Vancouver, ISO, and other styles

21

Masram, Mansu, and Gopal Singh Dhurwey. "Relationship between Cosmic rays’ Modulation and Solar Wind Parameters in Solar Cycle 24 and Ascending Phase of Cycle 25." Journal of Advances in Science and Technology 21, no. 2 (2024): 1–12. https://doi.org/10.29070/tx2ca913.

Full text

Abstract:

The solar cycle 24 behaviour of several heliospheric parameters and activity indices is contrasted with the persistent changes in cosmic rays throughout time. Previous to this, a series of was used for the geomagnetic indices Ap, Kp, and aa, solar flare group counts, cosmic ray strengths during solar cycles 22, 23, and 24, and sunspot counts. We found the interrelationships between solarheliospheric factors such the interplanetary magnetic field, cosmic-ray modulation, the present solar cycle, which is marked by several rare and powerful solar occurrences, and the heliospheric current sheet ti

APA, Harvard, Vancouver, ISO, and other styles

22

Sahai, Y., P. R. Fagundes, R. de Jesus, et al. "Studies of ionospheric F-region response in the Latin American sector during the geomagnetic storm of 21–22 January 2005." Annales Geophysicae 29, no. 5 (2011): 919–29. http://dx.doi.org/10.5194/angeo-29-919-2011.

Full text

Abstract:

Abstract. In the present investigation, we have studied the response of the ionospheric F-region in the Latin American sector during the intense geomagnetic storm of 21–22 January 2005. This geomagnetic storm has been considered "anomalous" (minimum Dst reached −105 nT at 07:00 UT on 22 January) because the main storm phase occurred during the northward excursion of the Bz component of interplanetary magnetic fields (IMFs). The monthly mean F10.7 solar flux for the month of January 2005 was 99.0 sfu. The F-region parameters observed by ionosondes at Ramey (RAM; 18.5° N, 67.1° W), Puerto Rico,

APA, Harvard, Vancouver, ISO, and other styles

23

McFadden, P. L., and R. T. Merrill. "Inhibition and geomagnetic field reversals." Journal of Geophysical Research: Solid Earth 98, B4 (1993): 6189–99. http://dx.doi.org/10.1029/92jb02574.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Silva, de Lima Newton, dos Santos Alan Ferreira, and de Araújo Rutenio Luiz Castro. "Observations of MSTIDs/GWs at the F2 layer heights in the near equatorial region." Amazon Expedition Magazine 4, no. 4 (2025): 23–34. https://doi.org/10.5281/zenodo.14963870.

Full text

Abstract:

Ionospheric vertical sounding observations, using a digital ionosonde (Canadian Advanced Digital Ionosonde(CADI)) , arebeing carried out on a routine basis at Manaus (2,9 0 S; 60,0 0 W; dip latitude 6,4 N, hereafter referred to as MAN), Brazil, locatedbetween the geographic and geomagnetic dip equators, since August 2002, (Fig. 1). The medium scale traveling ionosphericdisturbance (MSTID) signatures, induced by gravity waves (GWs), in the F2 layer can be observed sometimes during daytime in theiso-frequency plots of virtual height daily va

APA, Harvard, Vancouver, ISO, and other styles

25

Valet, Jean-Pierre, Alexandre Fournier, Vincent Courtillot, and Emilio Herrero-Bervera. "Dynamical similarity of geomagnetic field reversals." Nature 490, no. 7418 (2012): 89–93. http://dx.doi.org/10.1038/nature11491.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Bogue, Scott W., and Hilary A. Paul. "Distinctive field behavior following geomagnetic reversals." Geophysical Research Letters 20, no. 21 (1993): 2399–402. http://dx.doi.org/10.1029/93gl02473.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Tolmachev, Daniil, Roman Chertovskih, Simon Ranjith Jeyabalan, and Vladislav Zheligovsky. "Predictability of Magnetic Field Reversals." Mathematics 12, no. 3 (2024): 490. http://dx.doi.org/10.3390/math12030490.

Full text

Abstract:

Geomagnetic field measurements indicate that at present we may be on the brink of the Earth’s magnetic field reversal, potentially resulting in all the accompanying negative consequences for the mankind. Mathematical modelling is necessary in order to find precursors for reversals and excursions of the magnetic field. With this purpose in mind, following the Podvigina scenario for the emergence of the reversals, we have studied convective flows not far (in the parameter space) from their onset and the onset of magnetic field generation, and found a flow demonstrating reversals of polarity of s

APA, Harvard, Vancouver, ISO, and other styles

28

KONO, Masaru. "Motonori Matuyama and reversals of geomagnetic field." Proceedings of the Japan Academy, Series B 100, no. 9 (2024): 491–99. http://dx.doi.org/10.2183/pjab.100.031.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Gurarii, G. Z., M. V. Aleksyutin, and N. Ataev. "Wavelet analysis of paleomagnetic data: 1. Characteristic average times (5–10 kyr) of variations in the geomagnetic field during and immediately before and after the Early Jaramillo reversal (Western Turkmenistan)." Izvestiya, Physics of the Solid Earth 43, no. 10 (2007): 819–29. http://dx.doi.org/10.1134/s1069351307100047.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Coe, Robert S., and Michel Prévot. "Evidence suggesting extremely rapid field variation during a geomagnetic reversal." Earth and Planetary Science Letters 92, no. 3-4 (1989): 292–98. http://dx.doi.org/10.1016/0012-821x(89)90053-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Séran, E., H. U. Frey, M. Fillingim, J. J. Berthelier, R. Pottelette, and G. Parks. "Demeter high resolution observations of the ionospheric thermal plasma response to magnetospheric energy input during the magnetic storm of November 2004." Annales Geophysicae 25, no. 12 (2007): 2503–11. http://dx.doi.org/10.5194/angeo-25-2503-2007.

Full text

Abstract:

Abstract. High resolution Demeter plasma and wave observations were available during one of the geomagnetic storms of November 2004 when the ionospheric footprint of the plasmasphere was pushed below 64 degrees in the midnight sector. We report here onboard observations of thermal/suprathermal plasma and HF electric field variations with a temporal resolution of 0.4 s, which corresponds to a spatial resolution of 3 km. Local perturbations of the plasma parameters at the altitude of 730 km are analysed with respect to the variation of the field-aligned currents, electron and proton precipitatio

APA, Harvard, Vancouver, ISO, and other styles

32

Chou, Yu-Min, Xiuyang Jiang, Qingsong Liu, et al. "Multidecadally resolved polarity oscillations during a geomagnetic excursion." Proceedings of the National Academy of Sciences 115, no. 36 (2018): 8913–18. http://dx.doi.org/10.1073/pnas.1720404115.

Full text

Abstract:

Polarity reversals of the geomagnetic field have occurred through billions of years of Earth history and were first revealed in the early 20th century. Almost a century later, details of transitional field behavior during geomagnetic reversals and excursions remain poorly known. Here, we present a multidecadally resolved geomagnetic excursion record from a radioisotopically dated Chinese stalagmite at 107–91 thousand years before present with age precision of several decades. The duration of geomagnetic directional oscillations ranged from several centuries at 106–103 thousand years before pre

APA, Harvard, Vancouver, ISO, and other styles

33

Gurarii, G. Z. "Geomagnetic field reversals: Main results and basic problems." Russian Journal of Earth Sciences 7, no. 3 (2005): 1–13. http://dx.doi.org/10.2205/2005es000175.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Reshetnyak, M. Yu. "Geostrophic balance and reversals of the geomagnetic field." Russian Journal of Earth Sciences 13, no. 1 (2013): 1–6. http://dx.doi.org/10.2205/2013es000526.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Wicht, Johannes, and Domenico G. Meduri. "A gaussian model for simulated geomagnetic field reversals." Physics of the Earth and Planetary Interiors 259 (October 2016): 45–60. http://dx.doi.org/10.1016/j.pepi.2016.07.007.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Bogue, S. W., and R. T. Merrill. "The Character of the Field During Geomagnetic Reversals." Annual Review of Earth and Planetary Sciences 20, no. 1 (1992): 181–219. http://dx.doi.org/10.1146/annurev.ea.20.050192.001145.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

McFadden, P. L., and R. T. Merrill. "Sawtooth paleointensity and reversals of the geomagnetic field." Physics of the Earth and Planetary Interiors 103, no. 3-4 (1997): 247–52. http://dx.doi.org/10.1016/s0031-9201(97)00036-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Engbers, Yael A., Andrew J. Biggin, and Richard K. Bono. "Elevated paleomagnetic dispersion at Saint Helena suggests long-lived anomalous behavior in the South Atlantic." Proceedings of the National Academy of Sciences 117, no. 31 (2020): 18258–63. http://dx.doi.org/10.1073/pnas.2001217117.

Full text

Abstract:

Earth’s magnetic field is presently characterized by a large and growing anomaly in the South Atlantic Ocean. The question of whether this region of Earth’s surface is preferentially subject to enhanced geomagnetic variability on geological timescales has major implications for core dynamics, core−mantle interaction, and the possibility of an imminent magnetic polarity reversal. Here we present paleomagnetic data from Saint Helena, a volcanic island ideally suited for testing the hypothesis that geomagnetic field behavior is anomalous in the South Atlantic on timescales of millions of years. O

APA, Harvard, Vancouver, ISO, and other styles

39

Gurarii, G. Z. "Wavelet analysis of paleomagnetic data: 5. Early Jaramillo reversal and main characteristic times in the interval from 3 to 70 ka in the variations of the elements of geomagnetic field (Western Turkmenia)." Izvestiya, Physics of the Solid Earth 49, no. 1 (2013): 130–43. http://dx.doi.org/10.1134/s1069351312100011.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Gurarii, G. Z., M. V. Aleksyutin, and N. M. Ataev. "Wavelet analysis of paleomagnetic data: 4. Characteristic short times (0.4–4.5 ky) of variations in the elements of the geomagnetic field during the early Jaramillo reversal and in the stationary field during the Matuyama and Jaramillo chrons (Western Turkmenia)." Izvestiya, Physics of the Solid Earth 48, no. 4 (2012): 306–19. http://dx.doi.org/10.1134/s1069351312040027.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Feschenko, L. K., та G. M. Vodinchar. "Reversals in the large-scale αΩ-dynamo with memory". Nonlinear Processes in Geophysics 22, № 4 (2015): 361–69. http://dx.doi.org/10.5194/npg-22-361-2015.

Full text

Abstract:

Abstract. Inversion of the magnetic field in a model of large-scale αΩ-dynamo with α-effect with stochastic memory is under investigation. The model allows us to reproduce the main features of the geomagnetic field reversals. It was established that the polarity intervals in the model are distributed according to the power law. Model magnetic polarity timescale is fractal. Its dimension is consistent with the dimension of the real geomagnetic polarity timescale.

APA, Harvard, Vancouver, ISO, and other styles

42

SORRISO-VALVO, LUCA, VINCENZO CARBONE, MICHAEL BOURGOIN, PHILIPPE ODIER, NICOLAS PLIHON, and ROMAIN VOLK. "STATISTICAL ANALYSIS OF MAGNETIC FIELD REVERSALS IN LABORATORY DYNAMO AND IN PALEOMAGNETIC MEASUREMENTS." International Journal of Modern Physics B 23, no. 28n29 (2009): 5483–91. http://dx.doi.org/10.1142/s0217979209063791.

Full text

Abstract:

Statistical properties of the temporal distribution of polarity reversals of the geomagnetic field are commonly assumed to be a realization of a renewal Poisson process with a variable rate. However, it has been recently shown that the polarity reversals strongly depart from a local Poisson statistics, because of temporal clustering. Such clustering arises from the presence of long-range correlations in the underlying dynamo process. Recently achieved laboratory dynamo also shows reversals. It is shown here that laboratory and paleomagnetic data are both characterized by the presence of long-r

APA, Harvard, Vancouver, ISO, and other styles

43

Poornachandra Rao, G. V. S., and M. S. Bhalla. "Magnetostratigraphy of Vindhyan Supergroup." Journal Geological Society of India 47, no. 1 (1996): 29–32. http://dx.doi.org/10.17491/jgsi/1996/470114.

Full text

Abstract:

Abstract In the absence of conventional radiometric dating and fossil evidence, magnetostratigraphy is considered to be a very powerful tool to correlate rock formations. Often the magnetozones are used as bench marks in correlation of rocks as the geomagnetic field reversals are ubiquitously synchronous. The Vindhyan sedimentation in the Indian stratigraphy represents a very important time period between 1400-400Ma with lithounits quite suitable for recovering the geomagnetic field signatures. With the recently obtained results from the Senui Group, palaeomagnetic field during the main Vindhy

APA, Harvard, Vancouver, ISO, and other styles

44

Barbosa, Cleiton S., Douglas S. R. Ferreira, Marco A. do Espírito Santo, and Andrés R. R. Papa. "Statistical analysis of geomagnetic field reversals and their consequences." Physica A: Statistical Mechanics and its Applications 392, no. 24 (2013): 6554–60. http://dx.doi.org/10.1016/j.physa.2013.08.025.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Fagre, Mariano, Bruno S. Zossi, Erdal Yiğit, Hagay Amit, and Ana G. Elias. "High frequency sky wave propagation during geomagnetic field reversals." Studia Geophysica et Geodaetica 64, no. 1 (2019): 130–42. http://dx.doi.org/10.1007/s11200-019-1154-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

NARTEAU, C., J. LEMOUEL, and J. VALET. "The oscillatory nature of the geomagnetic field during reversals." Earth and Planetary Science Letters 262, no. 1-2 (2007): 66–76. http://dx.doi.org/10.1016/j.epsl.2007.07.007.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Reshetnyak, M. Yu. "Behaviour of the Geomagnetic Field during Reversals and Excursions." Moscow University Physics Bulletin 79, no. 1 (2024): 107–12. http://dx.doi.org/10.3103/s0027134924700152.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Reshetnyak, M. Yu. "Reversals of the Geomagnetic Field: A Multi-Scale Phenomenon?" Izvestiya, Atmospheric and Oceanic Physics 60, no. 10 (2024): 1259–63. https://doi.org/10.1134/s0001433825700495.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Molina-Cardín, Alberto, Luis Dinis, and María Luisa Osete. "Simple stochastic model for geomagnetic excursions and reversals reproduces the temporal asymmetry of the axial dipole moment." Proceedings of the National Academy of Sciences 118, no. 10 (2021): e2017696118. http://dx.doi.org/10.1073/pnas.2017696118.

Full text

Abstract:

We present a simple model for the axial dipole moment (ADM) of the geomagnetic field based on a stochastic differential equation for two coupled particles in a biquadratic potential, subjected to Gaussian random perturbations. This model generates aperiodic reversals and excursions separated by stable polarity periods. The model reproduces the temporal asymmetry of geomagnetic reversals, with slower decaying rates before the reversal and faster growing rates after it. This temporal asymmetry is possible because our model is out of equilibrium. The existence of a thermal imbalance between the t

APA, Harvard, Vancouver, ISO, and other styles

50

Xi, Xiao Wen, Shang Kun Ren, and Li Hua Yuan. "Finite Element Analysis of Magnetization Reversal Effect Based on Ferromagnetic Specimens." Applied Mechanics and Materials 620 (August 2014): 127–32. http://dx.doi.org/10.4028/www.scientific.net/amm.620.127.

Full text

Abstract:

Using large finite element analysis (FEA) software ANSYS, the stress-magnetization effect on 20# steel specimens with different shape notches is simulated under the geomagnetic field and tensile load. With the stimulation, the magnetic flux leakage fields at certain positions of the surface specimen were measured. Through analysis the relationship between the magnetic flux leakage fields of certain points with tensile stress, the results showed that the magnetic field value at certain positions of specimen surface first decreases and then increases along with the increase of stress, which is c

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!