Earth's magnetic field - Wikipedia
WEBEarth's magnetic field, also known as the geomagnetic field, is the magnetic field that extends from Earth's interior out into space, where it interacts with the solar wind, a stream of charged particles emanating from the Sun.
How does the Earth's core generate a magnetic field?
WEBThe Earth's outer core is in a state of turbulent convection as the result of radioactive heating and chemical differentiation. This sets up a process that is a bit like a naturally occurring electrical generator, where the convective kinetic energy is converted to electrical and magnetic energy.
Earth's magnetic field: Explained | Space
WEBJul 6, 2022 · Earth's magnetic field originates in the outer core and extends out into the magnetosphere — a region of space that helps protect Earth from space weather.
Earth's Magnetic Field: Origin, Structure, and Impact on Humanity
WEBThe Earth’s magnetic field provides valuable insights into the planet’s inner structure and dynamics, including the geodynamo process within the Earth’s outer core. By studying changes in the magnetic field, scientists can also learn about the Earth’s past.
Scientists are probing the secrets of Earth’s inner core—and how …
WEBMar 31, 2022 · Increasingly, scientists believe it was the birth of Earth’s inner core, a sphere of solid iron that sits within the molten outer core, where churning metal generates the planet’s magnetic field.
Core
WEBJun 11, 2024 · The churning metal of the outer core creates and sustains Earth’s magnetic field. The hottest part of the core is actually the Bullen discontinuity, where temperatures reach 6,000° Celsius (10,800° Fahrenheit)—as hot as the surface of the sun.
Earth’s magnetic field
WEBThis dynamic force, generated by the movement of liquid iron in Earth’s outer core, undergoes periodic changes and experiences magnetic north-south flips every few hundred thousand years. Earth’s magnetic field has long been used to aid navigation by aligning compasses to the North pole.
9.3 Earth’s Magnetic Field – Physical Geology
WEBEarth’s magnetic field is defined by the North and South Poles that align generally with the axis of rotation (Figure 9.13). The lines of magnetic force flow into Earth in the northern hemisphere and out of Earth in the southern hemisphere.
Magnetic Field of the Earth - HyperPhysics
WEBMagnetic fields surround electric currents, so we surmise that circulating electic currents in the Earth's molten metalic core are the origin of the magnetic field. A current loop gives a field similar to that of the earth.
3.4: Earth’s Magnetic Field - Geosciences LibreTexts
WEBAug 22, 2024 · Earth’s magnetic field is generated mostly within the outer core by the convective movement of liquid iron, but although convection is continuous, the magnetic field is not stable. Periodically, the magnetic field decays, then re-estabilshes.
Skip to content