Relevant bibliographies by topics / Geomagnetic dipole field

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Geomagnetic dipole field'

Author: Grafiati
Published: 4 June 2021
Last updated: 16 February 2022

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Journal articles on the topic "Geomagnetic dipole field"

1

Merrill, Ronald T., and Phillip L. McFadden. "The geomagnetic axial dipole field assumption." Physics of the Earth and Planetary Interiors 139, no. 3-4 (2003): 171–85. http://dx.doi.org/10.1016/j.pepi.2003.07.016.

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2

Kovaltsov, G. A., and I. G. Usoskin. "Regional cosmic ray induced ionization and geomagnetic field changes." Advances in Geosciences 13 (August 13, 2007): 31–35. http://dx.doi.org/10.5194/adgeo-13-31-2007.

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Abstract. Cosmic ray induced ionization (CRII) is an important factor of outer space influences on atmospheric properties. Variations of CRII are caused by two different processes – solar activity variations, which modulate the cosmic ray flux in interplanetary space, and changes of the geomagnetic field, which affects the cosmic ray access to Earth. Migration of the geomagnetic dipole axis may greatly alter CRII in some regions on a time scale of centuries and longer. Here we present a study of CRII regional effects of the geomagnetic field changes during the last millennium for two regions:
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3

Ladynin, A. V. "Dipole sources of the main geomagnetic field." Russian Geology and Geophysics 55, no. 4 (2014): 495–507. http://dx.doi.org/10.1016/j.rgg.2014.03.007.

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Bhattacharyya, A., and B. Mitra. "Changes in cosmic ray cut-off rigidities due to secular variations of the geomagnetic field." Annales Geophysicae 15, no. 6 (1997): 734–39. http://dx.doi.org/10.1007/s00585-997-0734-6.

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Abstract. An analytical expression is derived for the cutoff rigidity of cosmic rays arriving at a point in an arbitrary direction, when the main geomagnetic field is approximated by that of an eccentric dipole. This expression is used to determine changes in geomagnetic cutoffs due to secular variation of the geomagnetic field since 1835. Effects of westward drift of the quadrupole field and decrease in the effective dipole moment are seen in the isorigidity contours. On account of the immense computer time required to determine the cutoff rigidities more accurately using the particle traject
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5

Yukutake, Takesi. "The Geomagnetic Non-Dipole Field in the Pacific." Journal of geomagnetism and geoelectricity 45, no. 11 (1993): 1441–53. http://dx.doi.org/10.5636/jgg.45.1441.

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6

Melnikova, L. D., I. A. Pyatak, and A. A. Komarov. "Presentation of global geomagnetic field by dipole model." Kosmìčna nauka ì tehnologìâ 9, no. 1s (2003): 98–100. http://dx.doi.org/10.15407/knit2003.01s.098.

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WANG, Tan-Wen. "The Geomagnetic Dipole Field in the 20th Century." Chinese Journal of Geophysics 48, no. 1 (2005): 62–65. http://dx.doi.org/10.1002/cjg2.626.

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8

Olson, Peter, Maylis Landeau, and Evan Reynolds. "True dipole wander." Geophysical Journal International 215, no. 3 (2018): 1523–29. http://dx.doi.org/10.1093/gji/ggy349.

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SUMMARY A fundamental assumption in palaeomagnetism is that the geomagnetic field closely approximates a geocentric axial dipole in time average. Here we use numerical dynamos driven by heterogeneous core–mantle boundary heat flux from a mantle global circulation model to demonstrate how mantle convection produces true dipole wander, rotation of the geomagnetic dipole on geologic timescales. Our heterogeneous mantle-driven dynamos show a dipole rotation about a near-equatorial axis in response to the transition in lower mantle heterogeneity from a highly asymmetric pattern at the time of super
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9

Reshetnyak, M. Yu, and V. E. Pavlov. "Evolution of the dipole geomagnetic field. Observations and models." Geomagnetism and Aeronomy 56, no. 1 (2016): 110–24. http://dx.doi.org/10.1134/s0016793215060122.

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10

Singh, A., and K. D. Cole. "Ionospheric electrodynamic model with an eccentric dipole geomagnetic field." Journal of Atmospheric and Terrestrial Physics 57, no. 7 (1995): 795–803. http://dx.doi.org/10.1016/0021-9169(94)00062-s.

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Dissertations / Theses on the topic "Geomagnetic dipole field"

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Hartmann, Gelvam Andre. "ARQUEOMAGNETISMO NO BRASIL: VARIAÇÕES DA INTENSIDADE DO CAMPO MAGNÉTICO TERRESTRE NOS ÚLTIMOS CINCO SÉCULOS." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/14/14132/tde-17032011-100832/.

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O campo magnético da Terra varia em diferentes escalas de tempo, de milissegundos a bilhões de anos. Os dados de observatórios magnéticos e satélites obtidos nos últimos 150 anos indicam que o momento do dipolo magnético terrestre está diminuindo continuamente. Essa queda está associada à presença de fontes não-dipolares do campo em uma extensa região que abrange todo o Atlântico Sul e uma porção da América do Sul, sendo que no Brasil a contribuição dessas fontes varia fortemente com a latitude. Em escala de tempo arqueomagnética (~1.000-10.000 anos) a evolução do campo magnético terrestre nã
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2

Silva, Wilbor Poletti. "Archaeomagnetic field intensity evolution during the last two millennia." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/14/14132/tde-19092018-135335/.

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Temporal variations of Earth\'s magnetic field provide a great range of geophysical information about the dynamics at different layers of the Earth. Since it is a planetary field, regional and global aspects can be explored, depending on the timescale of variations. In this thesis, the geomagnetic field variations for the last two millennia were investigated. For that, some improvement on the methods to recover the ancient magnetic field intensity from archeological material were done, new data was acquired and a critical assessment of the global archaeomagnetic database was performed. Two met
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3

Ménabréaz, Lucie. "Production atmosphérique du nucléide cosmogénique 10 Be et variations de l'intensité du champ magnétique terrestre au cours des derniers 800 000 ans." Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM4316/document.

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Parmi les méthodes de reconstitution de l'histoire du champ géomagnétique, l'étude des variations de la production atmosphérique d'isotopes cosmogéniques s'est récemment développé. Cette production est modulée au premier ordre et aux échelles multimillénaires par l'intensité du champ géomagnétique. Son enregistrement dans les archives de l'environnement terrestre en apporte une lecture indépendante, donc complémentaire des méthodes paléomagnétiques. Ce travail vise à retracer les changements de taux de production de 10Be enregistrés dans les sédiments marins, afin de restituer les variations d
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Books on the topic "Geomagnetic dipole field"

1

Is the non-dipole magnetic field random? National Aeronautics and Space Administration, 1996.

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2

E, Backus George, and United States. National Aeronautics and Space Administration., eds. Is the non-dipole magnetic field random? National Aeronautics and Space Administration, 1996.

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3

Is the non-dipole magnetic field random? National Aeronautics and Space Administration, 1996.

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E, Backus George, and United States. National Aeronautics and Space Administration., eds. Is the non-dipole magnetic field random? National Aeronautics and Space Administration, 1996.

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5

Center, Goddard Space Flight, ed. Elementary theoretical forms for the spatial power spectrum of Earth's crustal magnetic field. National Aeronautics and Space Administration, Goddard Space Flight Center, 1998.

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6

Center, Goddard Space Flight, ed. Elementary theoretical forms for the spatial power spectrum of Earth's crustal magnetic field. National Aeronautics and Space Administration, Goddard Space Flight Center, 1998.

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Book chapters on the topic "Geomagnetic dipole field"

1

Yamazaki, Toshitsugu, and Hirokuni Oda. "Intensity-Inclination Correlation for Long-Term Secular Variation of the Geomagnetic Field and Its Relevance to Persistent Non-Dipole Components." In Timescales Of The Paleomagnetic Field. American Geophysical Union, 2013. http://dx.doi.org/10.1029/145gm22.

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2

Merkuriev, Sergei A., Irina M. Demina, and Sergei A. Ivanov. "Preliminary Estimation of the Non-dipole Part of the Geomagnetic Field in the Quaternary Period Based on the Investigation of Marine Magnetic Anomalies on the Carlsberg Ridge." In Springer Proceedings in Earth and Environmental Sciences. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-21788-4_13.

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3

Tauxe, Lisa, and Dennis V. Kent. "A Simplified Statistical Model for the Geomagnetic Field and the Detection of Shallow Bias in Paleomagnetic Inclinations: was the Ancient Magnetic Field Dipolar?" In Timescales Of The Paleomagnetic Field. American Geophysical Union, 2013. http://dx.doi.org/10.1029/145gm08.

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4

Lowrie, William. "7. The Earth’s magnetic field." In Geophysics: A Very Short Introduction. Oxford University Press, 2018. http://dx.doi.org/10.1093/actrade/9780198792956.003.0007.

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The Earth is surrounded by a magnetic field, which originates inside its molten core, and which for centuries has helped travellers to navigate safely across uncharted regions. The magnetic field protects life on the Earth by acting as a shield against harmful radiation from space, especially from the Sun. ‘The Earth’s magnetic field’ explains that the magnetic field at the Earth’s surface is dominantly that of an inclined dipole. The Sun’s deforming effect on the magnetic field outside the Earth is described, as are the magnetic fields of other planets. The magnetism of rocks forms the basis of palaeomagnetism, which explains how plate tectonics displaced the continents and produced oceanic magnetic anomalies whenever the geomagnetic field reversed polarity.
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5

Yunfang, Lin, Zeng Xiaoping, and Guo Qihua. "ANALYSIS OF SECULAR VARIATIONS OF NON-DIPOLE GEOMAGNETIC FIELD IN EAST ASIA." In Advances in Geophysical Research. Elsevier, 1991. http://dx.doi.org/10.1016/b978-0-08-036390-5.50025-7.

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Conference papers on the topic "Geomagnetic dipole field"

1

Zhang, Tao, Xinhua Wang, Yingchun Chen, Zia Ullah, and Yizhen Zhao. "Non-Contact Geomagnetic Localization of Pipeline Defects Using Empirical Mode Decomposition and Magnetic Gradient Tensor." In 2018 12th International Pipeline Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/ipc2018-78258.

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Non-contact geomagnetic anomaly detection, as one of passive non-destructive testing (NDT) techniques, can be used to locate pipeline defects, while its accuracy is affected by random noise and detection orientation. In order to extract effective geomagnetic anomaly signals of pipeline defects, a method based on empirical mode decomposition (EMD) and magnetic gradient tensor was studied. In order to filter random noise, EMD was performed to self-adaptively decompose magnetic field signals into a series of intrinsic mode functions (IMFs), and then Hurst exponent was implemented to exclude false
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2

Huang, Yu, and Yan-ling Hao. "Method of separating dipole magnetic anomaly from geomagnetic field and application in underwater vehicle localization." In 2010 International Conference on Information and Automation (ICIA). IEEE, 2010. http://dx.doi.org/10.1109/icinfa.2010.5512104.

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3

Nicolayson, L. O., and D. P. Mason. "Why Are The ‘Fast’ Patches In Mtz Seismic Velocity Maps Also The Sectors Where The Geomagnetic Field Exhibits Fluctuating Dipole Sources? A Proposal On The Underlying Physics." In 3rd SAGA Biennial Conference and Exhibition. European Association of Geoscientists & Engineers, 1993. http://dx.doi.org/10.3997/2214-4609-pdb.224.016.

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