{"id":9869,"date":"2025-03-14T17:02:19","date_gmt":"2025-03-14T16:02:19","guid":{"rendered":"https:\/\/scienceetonnante.com\/?p=9869"},"modified":"2025-03-14T17:01:16","modified_gmt":"2025-03-14T16:01:16","slug":"champ-magnetique-terrestre","status":"publish","type":"post","link":"https:\/\/scienceetonnante.com\/blog\/2025\/03\/14\/champ-magnetique-terrestre\/","title":{"rendered":"L&rsquo;origine du champ magn\u00e9tique terrestre"},"content":{"rendered":"<p>Cette semaine, un gros morceau ! La plus grosse vid\u00e9o jamais produite sur la cha\u00eene<\/p>\n<p><iframe title=\"Les MYST\u00c8RES du Champ Magn\u00e9tique Terrestre\" width=\"770\" height=\"433\" data-src=\"https:\/\/www.youtube.com\/embed\/TEp_9-ycjdI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" data-load-mode=\"1\"><\/iframe><\/p>\n<p>Et m\u00eame deux vid\u00e9os pour le prix d&rsquo;une puisque vous pouvez retrouver sur la cha\u00eene secondaire (nouvellement cr\u00e9\u00e9e !) l&rsquo;interview compl\u00e8te de Nathana\u00ebl Schaeffer<\/p>\n<p><iframe title=\"Simuler la g\u00e9odynamo : l&#039;interview de Nathana\u00ebl Schaeffer\" width=\"770\" height=\"433\" data-src=\"https:\/\/www.youtube.com\/embed\/ZvYnybLQRWQ?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" data-load-mode=\"1\"><\/iframe><\/p>\n<p>J&rsquo;ai fait beaucoup de biblio pour ces vid\u00e9os, je vous mets plein de r\u00e9f\u00e9rences ci-dessous si vous souhaitez aller plus loin. La plupart de ces papiers sont trouvables sur Google Scholar<\/p>\n<p><strong>Sur le <em>core paradox<\/em> originel<\/strong><br \/>\n<em><br \/>\nKennedy, G. C., &amp; Higgins, G. H. (1973). The core paradox. Journal of Geophysical Research, 78(5), 900-904.<\/em><\/p>\n<p><strong>Sur les variations du champ magn\u00e9tique et le pal\u00e9omagn\u00e9tisme<\/strong><\/p>\n<p><em>Malin, S. C. R., &amp; Bullard, E. (1981). The direction of the Earth&rsquo;s magnetic field at London, 1570-1975. Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 299(1450), 357-423.<\/em><\/p>\n<p><em>Butler, R. F. (1998). Paleomagnetism: magnetic domains to geologic terrains.<\/em><\/p>\n<p><strong>Sur les bases de donn\u00e9es de pal\u00e9omagn\u00e9tisme d&rsquo;arch\u00e9omagn\u00e9tisme et de laves solidifi\u00e9es<\/strong><\/p>\n<p><em>Bono, R. K., Paterson, G. A., van der Boon, A., Engbers, Y. A., Michael Grappone, J., Handford, B., &#8230; &amp; Biggin, A. J. (2022). The PINT database: A definitive compilation of absolute palaeomagnetic intensity determinations since 4 billion years ago. Geophysical Journal International, 229(1), 522-545.<\/em><\/p>\n<p><em>Pav\u00f3n-Carrasco, F. J., Osete, M. L., Torta, J. M., &amp; De Santis, A. (2014). A geomagnetic field model for the Holocene based on archaeomagnetic and lava flow data. Earth and Planetary Science Letters, 388, 98-109.<\/em><\/p>\n<p><strong>Sur la dynamo cin\u00e9matique\u00a0<\/strong><\/p>\n<p><em>Childress, S. (1970). New solutions of the kinematic dynamo problem. Journal of Mathematical Physics, 11(10), 3063-3076.<\/em><\/p>\n<p><em>Gubbins, D. (2008). Implication of kinematic dynamo studies for the geodynamo. Geophysical Journal International, 173(1), 79-91.<\/em><\/p>\n<p><strong>Sur la dynamo auto-excit\u00e9e FURY<\/strong><\/p>\n<p><em>Plunian, F., &amp; Alboussi\u00e8re, T. (2020). Axisymmetric dynamo action is possible with anisotropic conductivity. Physical Review Research, 2(1), 013321.<\/em><\/p>\n<p><em>Plunian, F., &amp; Alboussi\u00e8re, T. (2022). Fast and furious dynamo action in the anisotropic dynamo. Journal of Fluid Mechanics, 941, A66.<\/em><\/p>\n<p><strong>Sur les simulations d&rsquo;inversions de Glatzmaier et Roberts<\/strong><\/p>\n<p><em>Glatzmaier, G. A., &amp; Roberts, P. H. (1995). A three-dimensional convective dynamo solution with rotating and finitely conducting inner core and mantle. Physics of the Earth and Planetary Interiors, 91(1-3), 63-75<\/em><\/p>\n<p><em>Glatzmaier, G. A., &amp; Roberts, P. H. (1997). Simulating the geodynamo. Contemporary physics, 38(4), 269-288.<\/em><\/p>\n<p><em>Glatzmaier, G. A., Coe, R. S., Hongre, L., &amp; Roberts, P. H. (1999). The role of the Earth&rsquo;s mantle in controlling the frequency of geomagnetic reversals. Nature, 401(6756), 885-890.<\/em><\/p>\n<p><em>Roberts, P. H., &amp; Glatzmaier, G. A. (2000). Geodynamo theory and simulations. Reviews of modern physics, 72(4), 1081.<\/em><\/p>\n<p><em>Glatzmaier, G. A. (2002). Geodynamo simulations\u2014How realistic are they?. Annual Review of Earth and Planetary Sciences, 30(1), 237-257<\/em><\/p>\n<p><strong>Sur l&rsquo;effet dynamo<\/strong><\/p>\n<p><em>Jones, C. A. (2011). Planetary magnetic fields and fluid dynamos. Annual Review of Fluid Mechanics, 43(1), 583-614.<\/em><\/p>\n<p><em>Roberts, P. H., &amp; King, E. M. (2013). On the genesis of the Earth&rsquo;s magnetism. Reports on Progress in Physics, 76(9), 096801.<\/em><\/p>\n<p><em>Schaeffer, N., Jault, D., Nataf, H. C., &amp; Fournier, A. (2017). Turbulent geodynamo simulations: a leap towards Earth\u2019s core. Geophysical Journal International, 211(1), 1-29.<\/em><\/p>\n<p><strong>Sur la MHD et les navires<\/strong><\/p>\n<p><em>C\u00e9bron, D., Viroulet, S., Vidal, J., Masson, J. P., &amp; Viroulet, P. (2017). Experimental and theoretical study of magnetohydrodynamic ship models. PloS one, 12(6), e0178599.<\/em><\/p>\n<p><strong>Sur l&rsquo;exp\u00e9rience Derviche Tourneur Sodium (DTS)<\/strong><\/p>\n<p><em>Kaplan, E. J., Nataf, H. C., &amp; Schaeffer, N. (2018). Dynamic domains of the Derviche Tourneur sodium experiment: simulations of a spherical magnetized Couette flow. Physical Review Fluids, 3(3), 034608.<\/em><\/p>\n<p><em>Gagni\u00e8re, N. (2009). Etude exp\u00e9rimentale du r\u00e9gime magn\u00e9tostrophique avec DTS (Derviche Tourneur Sodium) (Doctoral dissertation, Universit\u00e9 Joseph-Fourier-Grenoble I).<\/em><\/p>\n<p><strong>Sur les mesures satellites SWARM<\/strong><\/p>\n<p><em>Sabaka, T. J., T\u00f8ffner-Clausen, L., Olsen, N., &amp; Finlay, C. C. (2018). A comprehensive model of Earth\u2019s magnetic field determined from 4 years of Swarm satellite observations. Earth, Planets and Space, 70, 1-26.<\/em><\/p>\n<p><strong>Sur les bact\u00e9ries magn\u00e9totactiques<\/strong><\/p>\n<p><em>Vincenti, B., Ramos, G., Cordero, M. L., Douarche, C., Soto, R., &amp; Clement, E. (2019). Magnetotactic bacteria in a droplet self-assemble into a rotary motor. Nature communications, 10(1), 5082.<\/em><\/p>\n<p><strong>Sur le new core paradox<\/strong><\/p>\n<p><em>Olson, P. (2013). The new core paradox. Science, 342(6157), 431-432.<\/em><\/p>\n<p><em>Driscoll, P., &amp; Davies, C. (2023). The \u201cnew core paradox\u201d: Challenges and potential solutions. Journal of Geophysical Research: Solid Earth, 128(1), e2022JB025355.<\/em><\/p>\n<p><em>Landeau, M., Fournier, A., Nataf, H. C., C\u00e9bron, D., &amp; Schaeffer, N. (2022). Sustaining Earth\u2019s magnetic dynamo. Nature Reviews Earth &amp; Environment, 3(4), 255-269.<\/em><\/p>\n<p><strong>Sur l&rsquo;exp\u00e9rience THEIA et l&rsquo;impact de la topographie<\/strong><\/p>\n<p><em>Vidal, J., Noir, J., C\u00e9bron, D., Burmann, F., Monville, R., Giraud, V., &amp; Charles, Y. (2024). Geophysical flows over topography, a playground for laboratory experiments. Comptes Rendus. Physique, 25(S3), 1-52.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cette semaine, un gros morceau ! La plus grosse vid\u00e9o jamais produite sur la cha\u00eene Et m\u00eame deux vid\u00e9os pour le prix d&rsquo;une puisque vous pouvez retrouver sur la cha\u00eene secondaire (nouvellement cr\u00e9\u00e9e !) l&rsquo;interview compl\u00e8te de Nathana\u00ebl Schaeffer J&rsquo;ai fait beaucoup de biblio pour ces vid\u00e9os, je vous mets plein de r\u00e9f\u00e9rences ci-dessous si<\/p>\n","protected":false},"author":1,"featured_media":9873,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[91,6],"tags":[145,51],"class_list":{"0":"post-9869","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-geologie","8":"category-physique","9":"tag-geophysique","10":"tag-magnetisme"},"jetpack_featured_media_url":"https:\/\/scienceetonnante.com\/blog\/wp-content\/uploads\/2025\/03\/blog.png","jetpack_sharing_enabled":true,"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/posts\/9869","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/comments?post=9869"}],"version-history":[{"count":4,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/posts\/9869\/revisions"}],"predecessor-version":[{"id":9874,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/posts\/9869\/revisions\/9874"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/media\/9873"}],"wp:attachment":[{"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/media?parent=9869"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/categories?post=9869"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/tags?post=9869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}