What is the kp solar activity and what relationship does it have with the Auroras?
The kp solar activity is a number that comes from magnetic measurements made on Earth at lower latitudes (for example in the United States and in Europe). Earth has its own magnetic field, but magnetic fields can also come from moving charged particles (like electrons and protons). The KP index number comes from magnetic fields made by electrons and protons which circle Earth very far away (about 36,000 km away from the surface of Earth). Sometimes the solar wind will interact with Earth’s intrinsic magnetic field which then influences how many particles are circling Earth as well as how fast these particle circle Earth. This interaction changes the magnetic signature on Earth and thus changes the KP index. Often the particles that circle Earth were also involved in the process that creates the aurora. Also the interaction of the solar wind with Earth’s intrinsic magnetic field will result in more aurora. And so indirectly the KP index is related to the aurora. Dr.
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