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Earth's magnetic field deflects most of the solar wind, whose charged particles would otherwise strip away the ozone layer that protects the Earth from harmful ultraviolet radiation. [4] One stripping mechanism is for gas to be caught in bubbles of the magnetic field, which are ripped off by solar winds. [ 5 ]
The World Digital Magnetic Anomaly Map (WDMAM) was first made available by the Commission for the Geological Map of the World in 2007. Compiled with data from governments and institutes, [1] the project was coordinated by the International Association of Geomagnetism and Aeronomy, and was presented by Mike Purucker of NASA and Colin Reeves of the Netherlands. [2]
Earth's_magnetic_field,_schematic.png (566 × 503 pixels, file size: 96 KB, MIME type: image/png) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
Magnetic declination indicated on an Israeli map. The arrows show true north, grid north and magnetic north, and the caption explains that the average yearly change in the magnetic declination is 0°03′ eastward.
English: Plot of the earth's magnetic field components, in the approximation of an ideal dipole field. The three plot lines show the total field strength (blue), radial (vertical) field component (magenta) and the horizontal (south to north) field component (yellow).
Incredibly old human-made rocks have exposed an important event in Earth’s magnetic history. Ancient bricks baked when Nebuchadnezzar II was king absorbed a power surge in Earth’s magnetic ...
Image:Canada_blank_map.svg — Canada. File:Blank US Map (states only).svg — United States (including Alaska and Hawaii). Each state is its own vector image, meaning coloring states individually is very easy. File:Blank USA, w territories.svg – United States, including all major territories.
Earth’s outer core is made up of mostly molten iron, a liquid metal. Unpredictable changes in the way it flows cause the magnetic field around the Earth to shift, which then causes the magnetic ...