geomagnetic
Relating to terrestrial magnetism
Geomagnetic refers to the Earth's magnetic field—the force that makes compass needles point north and shields the planet from solar radiation.
Geomagnetic storms can disrupt satellite communications.
The field originates from molten iron currents in Earth's outer core and fluctuates over time, occasionally reversing polarity entirely.
Separated opposite charges
- polarityState of opposing forces
- declinationAngular distance from equator
- inclinationDisposition toward something
- field linesPaths depicting field strength
flux · magnetometer · secular variation · intensity · vector · gradient · isogonic
Device showing cardinal directions
- bearingPosture or orientation
- declinationAngular distance from equator
- true northDirection to the pole
- deviationDeparture from expected path
variation · orienteering · wayfinding · homing · migratory birds · sea turtles · salmon · biomagnetism
Continuous stellar particle emission
- solar flareMagnetic eruption from sunspots
- aurora borealisHigh-latitude luminous sky phenomenon
- aurora australisAntarctic atmospheric light display
- Kp indexGeomagnetic storm intensity measure
power grid · radio blackout · space weather · solar cycle · sunspot
Remnant magnetism in rocks
- excursionBrief recreational trip
- magnetiteMagnetic iron ore
- lava flowsMoving volcanic rock
- geologic timeEarth's age measured epochally
Planet's central iron sphere
- dynamoMotion-to-electricity converter
- lithosphereCrust plus upper mantle
- tectonicsStudy of crustal deformation
- seismologyStudy of ground tremors
Atoms with net electricity
- polar capFrozen mass at axis
- cosmic raysEnergetic particles from beyond
- cuspPoint of transition
- reconnectionRestoring a broken link
Earth's northern axis point
- South PoleSouthernmost point on Earth
- ArcticEarth's northernmost zone
- AntarcticSouthern polar region
- polar regionArea near geographic extremes
dipole
Separated opposite charges
- polarityState of opposing forces
- declinationAngular distance from equator
- inclinationDisposition toward something
field lines · flux · magnetometer · secular variation · intensity · vector · gradient · isogonic
compass
Device showing cardinal directions
- bearingPosture or orientation
- declinationAngular distance from equator
- true northDirection to the pole
deviation · variation · orienteering · wayfinding · homing · migratory birds · sea turtles · salmon · biomagnetism
solar wind
Continuous stellar particle emission
- solar flareMagnetic eruption from sunspots
- aurora borealisHigh-latitude luminous sky phenomenon
- aurora australisAntarctic atmospheric light display
Kp index · power grid · radio blackout · space weather · solar cycle · sunspot
paleomagnetism
Remnant magnetism in rocks
- excursionBrief recreational trip
- magnetiteMagnetic iron ore
- lava flowsMoving volcanic rock
earth's core
Planet's central iron sphere
- dynamoMotion-to-electricity converter
- lithosphereCrust plus upper mantle
- tectonicsStudy of crustal deformation
seismology · geodesy · gravimetry · geothermal · prospecting
charged particles
Atoms with net electricity
- polar capFrozen mass at axis
- cosmic raysEnergetic particles from beyond
- cuspPoint of transition
North Pole
Earth's northern axis point
- South PoleSouthernmost point on Earth
- ArcticEarth's northernmost zone
- AntarcticSouthern polar region
- geophysicsearthquake, earthquakes, seismology, seismic waves, seismograph
- magnetismferromagnetism, electromagnet, permanent magnets, magnetization, electromagnets
- geomagnetic stormMagnetosphere disruption from solar activity