geomagnetic map

  • 1geomagnetic field — Magnetic field associated with the Earth. It is essentially dipolar (i.e., it has two poles, the northern and southern magnetic poles) on the Earth s surface. Away from the surface, the field becomes distorted. Most geomagnetists explain the… …

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  • 2Geomagnetic reversal — Magnetic reversal redirects here. For switching of a magnet, see Magnetization reversal. Geomagnetic polarity during the late Cenozoic Era. Dark areas denote periods where the polarity matches today s polarity, light areas denote periods where… …

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  • 3Natal homing — is the process by which some adult animals return to their natal birthplace to reproduce. Contents 1 Sea Turtles 2 Salmon 3 Blue fin Tuna 4 Navigational Tools …

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  • 4Olfactory navigation — It is possible that homing pigeons may navigate by smell Olfactory navigation is a hypothesis put forward to explain navigation and homing of pigeons, in particular the homing pigeon. There are two principal versions. Papi’s mosaic model proposes …

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  • 5Magnetsinn — Als Magnetsinn oder Orientierung am Erdmagnetfeld wird die Fähigkeit von Tieren bezeichnet, das Magnetfeld der Erde wahrzunehmen und für die Ortsbestimmung zu nutzen. Die Fähigkeit, sich am Magnetfeld der Erde zu orientieren, wurde erst seit… …

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  • 6Prägung (Verhalten) — Wildgänse und Kraniche im gemeinsamen Flug mit Christian Moullec als Resultat einer Nachfolgeprägung Prägung nennt man in der Verhaltensbiologie eine irreversible Form des Lernens: Während eines meist relativ kurzen, genetisch festgelegten… …

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  • 7North Magnetic Pole — Magnetic North redirects here, for other uses see Magnetic North (disambiguation) Part of the Carta Marina of 1539 by Olaus Magnus, depicting the location of magnetic north vaguely conceived as Insula Magnetu[m] (Latin for Island of Magnets ) off …

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  • 8Aurora (astronomy) — Aurora Borealis redirects here. For other uses, see Aurora Borealis (disambiguation). Aurora Australis redirects here. For the ship, see Aurora Australis (icebreaker). For the book, see Aurora Australis (book). Northern lights redirects here. For …

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  • 9Antarctica — /ant ahrk ti keuh, ahr ti /, n. the continent surrounding the South Pole: almost entirely covered by an ice sheet. ab. 5,000,000 sq. mi. (12,950,000 sq. km). Also called Antarctic Continent. * * * Antarctica Introduction Antarctica Background:… …

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  • 10Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …

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