Log in

Relevant bibliographies by topics / Geomagnetic signatures

Contents

Journal articles
Dissertations / Theses
Books
Book chapters
Conference papers

Academic literature on the topic 'Geomagnetic signatures'

Author: Grafiati

Published: 6 September 2023

Last updated: 19 July 2025

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

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Geomagnetic signatures.'

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.

Journal articles on the topic "Geomagnetic signatures"

1

Zerbo, Jean-Louis, Frédéric Ouattara, Christine Amory Mazaudier, Jean-Pierre Legrand, and John D. Richardson. "Solar Activity, Solar Wind and Geomagnetic Signatures." Atmospheric and Climate Sciences 03, no. 04 (2013): 610–17. http://dx.doi.org/10.4236/acs.2013.34063.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Sutcliffe, P. R. "Modelling the Ionospheric Signatures of Geomagnetic Pulsations." Journal of geomagnetism and geoelectricity 46, no. 11 (1994): 1011–27. http://dx.doi.org/10.5636/jgg.46.1011.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Arora, Kusumita, and Rahul Prajapati. "Patterns of Seismo-Electromagnetic Signatures of Moderate Earthquakes in Diverse Tectonic Settings." Journal Of The Geological Society Of India 101, no. 6 (2025): 815–20. https://doi.org/10.17491/jgsi/2025/174166.

Full text

Abstract:

ABSTRACT Signatures of seismic and volcanic phenomena have been found in electromagnetic emissions of whole regions of lithosphere, atmosphere, and ionosphere from ground and satellite based observations: subionospheric VLF/LF propagation signals and TEC from upper ionosphere, ULF/ELF transients (or Q bursts), Schumann resonance (SR), ULF magnetic field depression, Pc1 pulsations, and VLF electromagnetic emissions. Anomalous fluctuations in the geomagnetic and electric DC observations also provide consistent signatures of pre-earthquake processes. We discuss the current trends in this research and present our results based on the analysis of the Diurnal Ratio and Polarization Ratio of geomagnetic data recorded in two different tectonic settings, i.e. Andaman-Nicobar subduction region and Indian peninsular shield before and during moderate earthquakes. Signatures in the former are dominated by the lower frequency PR anomalies, whereas for the intraplate earthquake studied in this work, higher frequency DRs dominate the signatures. More investigations on other moderate intraplate earthquakes are needed to confirm this pattern and ascertain causative mechanisms.

APA, Harvard, Vancouver, ISO, and other styles

4

Masci, F. "On the multi-fractal characteristics of the ULF geomagnetic field before the 1993 Guam earthquake." Natural Hazards and Earth System Sciences 13, no. 1 (2013): 187–91. http://dx.doi.org/10.5194/nhess-13-187-2013.

Full text

Abstract:

Abstract. Ida et al. (2005) document significant changes in the multi-fractal parameters of the ULF geomagnetic field H component starting about one month before the 1993 Guam earthquake. According to the authors, these multi-fractal signatures can be considered as precursory signals of the Guam earthquake. As a consequence, they conclude that the multi-fractal analysis may have an important role in the development of short-term earthquake prediction capabilities. Since this and other similar reports have motivated the idea that earthquake prediction based on electromagnetic precursory signals may one day become a routine technique, the presumed precursors need to be validated through independent datasets. In this review the seismogenic origin of the multi-fractal magnetic signatures documented by Ida et al. (2005) before the 8 August 1993 Guam earthquake is seriously put into question. By means of the geomagnetic ΣKp index, it is demonstrated that these multi-fractal parameter changes are normal signals induced by the variation of the global geomagnetic activity level.

APA, Harvard, Vancouver, ISO, and other styles

5

Kullen, A., S. Ohtani, and T. Karlsson. "Geomagnetic signatures of auroral substorms preceded by pseudobreakups." Journal of Geophysical Research: Space Physics 114, A4 (2009): n/a. http://dx.doi.org/10.1029/2008ja013712.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Alex, S., S. Mukherjee, and G. S. Lakhina. "Geomagnetic signatures during the intense geomagnetic storms of 29 October and 20 November 2003." Journal of Atmospheric and Solar-Terrestrial Physics 68, no. 7 (2006): 769–80. http://dx.doi.org/10.1016/j.jastp.2006.01.003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Lam, H. L., D. H. Boteler, and L. Trichtchenko. "Case studies of space weather events from their launching on the Sun to their impacts on power systems on the Earth." Annales Geophysicae 20, no. 7 (2002): 1073–79. http://dx.doi.org/10.5194/angeo-20-1073-2002.

Full text

Abstract:

Abstract. Active geomagnetic conditions on 12–13, 15–16, and 22–23 September 1999 resulted in geomagnetically induced currents (GIC) measurable in power systems in Canada and the United States. Different solar origins for these three events gave rise to dissimilar interplanetary signatures. We used these events to present three case studies, each tracing an entire space weather episode from its inception on the Sun, propagation through the interplanetary medium, manifestation on the ground as intense magnetic and electric fluctuations, and its eventual impact on technological systems.Key words. Geomagnetism and paleomagnetism (rapid time variations) – Interplanetary physics (interplanetary magnetic fields) – Solar physics, astrophysics, and astronomy (flares and mass ejections)

APA, Harvard, Vancouver, ISO, and other styles

8

Prajapati, Rahul, and Kusumita Arora. "Fractal analysis of geomagnetic data to decipher pre-earthquake processes in the Andaman–Nicobar region, India." Nonlinear Processes in Geophysics 32, no. 1 (2025): 1–21. https://doi.org/10.5194/npg-32-1-2025.

Full text

Abstract:

Abstract. Seismo-electromagnetic (SEM) signatures recorded in geomagnetic data prior to an earthquake have the potential to reveal pre-earthquake processes in focal zones. The present study analyses the vertical component of geomagnetic field data from March 2019 to April 2020 using fractal and multifractal approaches to identify the EM signatures in Campbell Bay (CBY), a seismically active region of Andaman and Nicobar. The significant enhancements in monofractal dimension and spectrum width components of multifractal analysis arise due to superpositioned high- and low-frequency SEM field emitted by the pre-earthquake processes. It is observed that the higher-frequency components associated with microfracturing dominating signatures of earthquakes occurring around the West Andaman Fault (WAF) and Andaman Trench (AT), while the lower frequencies, which result from slower electrokinetic mechanisms, have some correlation with the earthquakes around the Seulimeum strand (SS). Thus, the monofractal, spectrum width, and Hölder exponent parameters reveal a different nature of pre-earthquake processes that can be identified, on average, 10, 12, and 20 d prior to the moderate earthquakes, which holds promise for short-term earthquake prediction.

APA, Harvard, Vancouver, ISO, and other styles

9

Olawepo, A. O., and J. O. Adeniyi. "Signatures of strong geomagnetic storms in the equatorial latitude." Advances in Space Research 53, no. 7 (2014): 1047–57. http://dx.doi.org/10.1016/j.asr.2014.01.012.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Rawat, R., S. Alex, and G. S. Lakhina. "Low-latitude geomagnetic signatures during major solar energetic particle events of solar cycle-23." Annales Geophysicae 24, no. 12 (2006): 3569–83. http://dx.doi.org/10.5194/angeo-24-3569-2006.

Full text

Abstract:

Abstract. The frequency of occurrence of disruptive transient processes in the Sun is enhanced during the high solar activity periods. Solar cycle-23 evidenced major geomagnetic storm events and intense solar energetic particle (SEP) events. The SEP events are the energetic outbursts as a result of acceleration of heliospheric particles by solar flares and coronal mass ejections (CMEs). The present work focuses on the geomagnetic variations at equatorial and low-latitude stations during the four major SEP events of 14 July 2000, 8 November 2000, 24 September 2001 and 4 November 2001. These events have been reported to be of discernible magnitude following intense X-ray flares and halo coronal mass ejections. Low-latitude geomagnetic records evidenced an intense main phase development subsequent to the shock impact on the Earth's magnetosphere. Satellite observations show proton-flux enhancements associated with solar flares for all events. Correlation analysis is also carried out to bring out the correspondence between the polar cap magnetic field perturbations, AE index and the variations of low-latitude magnetic field. The results presented in the current study elucidate the varying storm development processes, and the geomagnetic field response to the plasma and interplanetary magnetic field conditions for the energetic events. An important inference drawn from the current study is the close correspondence between the persistence of a high level of proton flux after the shock in some events and the ensuing intense magnetic storm. Another interesting result is the role of the pre-shock southward IMF Bz duration in generating a strong main phase.

APA, Harvard, Vancouver, ISO, and other styles

More sources

Dissertations / Theses on the topic "Geomagnetic signatures"

1

Arun, T. "Geomagnetic signatures at Antarctica- diagnostics of internal and external fields." Thesis, IIG, 2002. http://localhost:8080/xmlui/handle/123456789/1575.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Calou, Paul. "Mesure et compensation de bâtiments navals à l’aide de capteurs magnétiques trois composantes." Thesis, Strasbourg, 2019. http://www.theses.fr/2019STRAH018.

Full text

Abstract:

Cette thèse s’établit à la frontière du géomagnétisme et du magnétisme du navire, deux disciplines proches mais dont les habitudes diffèrent. Dans un premier temps, on présente les spécificités de chaque domaine en introduisant les principales notions clés ainsi que le type de mesure mis en oeuvre pour chaque domaine et les géométries d’acquisition. On vérifie également la validité des approximations utilisées dans les cas de figure rencontrés. Dans un deuxième temps (chapitre 2 et 3) on détaille le lien mathématique possible entre l’anomalie scalaire utilisée en géophysique et les trois composantes du champ d’anomalie. Le chapitre 4 résume les travaux expérimentaux réalisés, on présente le banc de test utilisé ainsi que les résultats obtenus sur données synthétiques et réelles pour la problématique de réglages des boucles d’immunisation. Dans le chapitre 5, une nouvelle approche concernant l’immunisation en boucle fermée pour un navire est présentée. On montre également un exemple de compensation réalisée sur un vrai navire à l’aide de capteurs embarqués. La thèse se termine avec le chapitre 6 qui est un article soumis à une revue scientifique synthétisant les problématiques de la thèse<br>This PhD thesis aims to apply geophysical practices to another magnetic branch which deals with ship’s signature and magnetization with different methods and habits. Firstly, we present the specificity and practices of each domain, introducing the key notions as well as the differences between each kind of measurement. We check the validity of the approximation corresponding to total-field magnetic anomalies in the particular case of our measurements. In a second time, chapter 2 and 3, a mathematical relation is demonstrated between the scalar anomaly and the three components of the anomaly field based on the equivalent layer method. Chapter 4 summarize the experimental work, focusing on the determination of the best electrical current to compensate the ship’s magnetic signature. The experimental system is presented as well as the main results obtained. In chapter 5, a new approach for closed loop degaussing system is presented, based on a compensation algorithm. We also show some results obtained thanks to the compensation with three-component magnetometers onboard a real ship. Chapter 6 corresponds to an article submitted to a scientific journal (IEEE) that summarize most of the problematics of the thesis

APA, Harvard, Vancouver, ISO, and other styles

3

Hansen, Cody Robert Daniel. "Magnetic signature characterization of a fixed-wing vertical take-off and landing (VTOL) unmanned aerial vehicle (UAV)." Thesis, 2018. https://dspace.library.uvic.ca//handle/1828/10413.

Full text

Abstract:

The use of magnetometers combined with unmanned aerial vehicles (UAVs) is an emerging market for commercial and military applications. This study presents the methodology used to magnetically characterize a novel fixed-wing vertical take-off and landing (VTOL) UAV. The most challenging aspect of integrating magnetometers on manned or unmanned aircraft is minimizing the amount of magnetic noise generated by the aircraft’s onboard components. As magnetometer technology has improved in recent years magnetometer payloads have decreased in size. As a result, there has been an increase in opportunities to employ small to medium UAV with magnetometer applications. However, in comparison to manned aviation, small UAVs have smaller distance scales between sources of interference and sensors. Therefore, more robust magnetic characterization techniques are required specifically for UAVs. This characterization determined the most suitable position for the magnetometer payload by evaluating the aircraft’s static-field magnetic signature. For each aircraft component, the permanent and induced magnetic dipole moment characteristics were determined experimentally. These dipole characteristics were used to build three dimensional magnetic models of the aircraft. By assembling the dipoles in 3D space, analytical and numerical static-field solutions were obtained using MATLAB computational and COMSOL finite element analysis frameworks. Finally, Tolles and Lawson aeromagnetic compensation coefficients were computed and compared to evaluate the maneuver noise for various payload locations. The magnetic models were used to study the sensitivity of the aircraft configuration and to simultaneously predict the effects at potential sensor locations. The study concluded by predicting that a wingtip location was the area of lowest magnetic interference.<br>Graduate

APA, Harvard, Vancouver, ISO, and other styles

Books on the topic "Geomagnetic signatures"

1

Warm, Hartmut. Die Signatur der Sphären: Von der Ordnung im Sonnensystem. 2nd ed. Keplerstern Verlag, 2005.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Geomagnetic signatures"

1

Speiser, T. W., and R. F. Martin. "Neutral line energetic ion signatures in the geomagnetic tail: Comparisons with AMPTE observations." In Space Plasmas: Coupling Between Small and Medium Scale Processes. American Geophysical Union, 1995. http://dx.doi.org/10.1029/gm086p0243.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Olsen, Nils, and Claudia Stolle. "Magnetic Signatures of Ionospheric and Magnetospheric Current Systems During Geomagnetic Quiet Conditions—An Overview." In Earth's Magnetic Field. Springer Netherlands, 2017. http://dx.doi.org/10.1007/978-94-024-1225-3_2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Øieroset, M., and P. E. Sandholt. "Auroral and Geomagnetic Signatures of Flux Transfer Events and Associated Current Systems for Positive and Negative IMF BY." In Polar Cap Boundary Phenomena. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5214-3_16.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Vassiliadis, D., A. J. Klimas, J. A. Valdivia, and D. N. Baker. "Substorm Expansion as Seen from the Ground: Models of the Geomagnetic Signature." In Substorms-4. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-4798-9_14.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Shah, Raja Adibah Raja Halim, Nurul Shazana Abdul Hamid, Mardina Abdullah, et al. "A Case Study on Magnetic Signature of Ionospheric Disturbance Dynamo During an Intense Geomagnetic Storm on 6 August 2011." In Springer Proceedings in Physics. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-0142-1_23.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Regi, Mauro, Marcello De Lauretis, Gianluca Redaelli, and Patrizia Francia. "ULF Geomagnetic Activity Signatures in the Atmospheric Parameters in Antarctica." In Antarctica - A Key To Global Change. IntechOpen, 2019. http://dx.doi.org/10.5772/intechopen.81106.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Boudriki Semlali, Badr-Eddine, Carlos Molina, Mireia Carvajal Librado, Hyuk Park, and Adriano Camps. "Potential Earthquake Proxies from Remote Sensing Data." In New Insights on Disaster Risk Reduction [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.1005382.

Full text

Abstract:

At present, there is no clear scientific evidence of reliable earthquake precursors that can be used as an early warning system. However, many studies have also reported the existence of faint signatures that appear to be coupled to the occurrence of earthquakes. These anomalies have traditionally been detected using data from in-situ sensors near high-seismicity regions. On the other hand, remote sensors offer the potential of large spatial coverage and frequent revisit time, allowing the observation of remote areas such as deserts, mountains, polar caps, or the ocean. This chapter revises the state-of-the-art of the understanding of lithosphere–atmosphere–ionosphere coupling. It also presents recent studies by the authors’ ongoing investigation on short-to-midterm earthquake precursors. The Earth observation variables discussed are (1) surface temperature anomalies from thermal infrared or microwave radiometer measurements, (2) atmospheric signatures, (3) ionospheric total electron density fluctuations or scintillation measured from GNSS signals, and (4) other geophysical variables, including geomagnetic field fluctuations, changes in the Schumann resonance frequency, or low-frequency electromagnetic radiation. However, despite the seismic hazard risk models that exist and the results shown by these studies, it is still very difficult to predict the occurrence of earthquakes.

APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Geomagnetic signatures"

1

Miteva, Rositsa, Momchil Dechev, and Susan W. Samwel. "SPACE WEATHER RESEARCH: RECENT RESULTS AND ONLINE CATALOGS." In XIV Serbian-Bulgarian Astronomical Conference. Astronomical Observatory, 2024. http://dx.doi.org/10.69646/14sbac07a.

Full text

Abstract:

Space weather is a generic term used to describe the influence of solar activity in the heliosphere, on the planetary magnetospheres and atmospheres, technology - both space borne and ground based, and on human health and life. We highlight selected results from our recent studies on a variety of space weather phenomena, their solar origin and inter-relationship. The impact of space weather on satellites has been also explored by us in view of the SpaceX storm in February 2022. A comparison with the largest to date geomagnetic storm in the current solar cycle is also shown.Furthermore the recently compiled catalogs of solar energetic particles (protons and electrons), solar flares, radio emission signatures and geomagnetic storms are also presented. All catalogs are provided freely to the scientific community via their dedicated platforms: https://catalogs.astro.bas.bg/ and https://www.nriag.sci.eg/ace_electron_catalog/.

APA, Harvard, Vancouver, ISO, and other styles

2

Savić, Mihailo, Nikola Veselinović, Aleksandar Dragić, et al. "Cosmic Rays and Their Connection to Space Weather and Earth’s Climate." In Building bridges between climate science and society through a transdisciplinary network. Scientific Society Isaac Newton, 2024. http://dx.doi.org/10.69646/bbbs2407.

Full text

Abstract:

Cosmic rays have been studied for over a century. In addition to investigating their fundamental properties, such as origin, composition, and acceleration mechanisms, some of the most important studies in the field involve the interaction of cosmic rays within the heliosphere, near-Earth space, and the immediate Earth’s environment. These areas have been of particular interest in recent years.One such type of study focuses on the modulation of cosmic rays by the solar magnetic field and the geomagnetic field in the heliosphere and Earth’s magnetosphere, respectively. Among other things, the study of these modulations allows for the indirect observation of solar events, which produce characteristic signatures in the interplanetary magnetic field.Another interesting aspect of cosmic ray physics involves the interactions of secondary cosmic rays, primarily the muon component, within Earth’s atmosphere. Precise models of these interactions allow for corrections for atmospheric effects to be made to the muon flux, increasing the sensitivity of Earth-based detectors. Additionally, these models can enable inversediagnostics of the atmosphere, potentially providing an additional technique for atmospheric sounding.Thus, precise monitoring of cosmic ray variations can serve as a proxy for measuring solar activity and variations in Earth’s atmosphere. This can be invaluable in situations where direct measurements are not available and can provide significant contributions to the study of space weather and Earth’s climate.

APA, Harvard, Vancouver, ISO, and other styles

3

Gavrilyeva, Galina, Petr Ammosov, Anastasia Ammosova, Igor Koltovskoi, and Vera Sivtseva. "Geomagnetic activity signature in seasonal variations of mesopause temperature over Yakutia." In XXIII International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, edited by Oleg A. Romanovskii. SPIE, 2017. http://dx.doi.org/10.1117/12.2288710.

Full text

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!