Why You Should Ignore the Kp When Hunting For The Northern Lights?
What is Bz and Why It’s Better Than Kp for Predicting the Northern Lights? Bz is the vertical magnetic component of the solar wind’s Interplanetary Magnetic Field (IMF), and it’s the key to predicting Northern Lights activity. Think of it as an “on/off switch” for the aurora: Negative Bz (south-pointing) turns the aurora “on.” Positive […]
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