4 ms·
Is the increase fully accounted for by weakening solar protection, magnetosphere, and atmosphere? What are the causes for reduced protection in the latter two?
by eximius 9y ago
Is the increase fully accounted for by weakening solar protection, magnetosphere, and atmosphere?
What are the causes for reduced protection in the latter two?
- igor47 9y agofrom TFA, it seems all of the increase is explained by the dud maunder maximum of the past few years. the magnetosphere and atmosphere are unaffected, but more rays are getting through the weakened solar wind. they anticipate a record-setting maunder minimum in 2019-2020 that will intensify the problem
- i_am_nomad 9y agoThe earth’s magnetic field has fluctuated and reversed throughout geological history. Recently, the field has been decreasing in strength and may be poised for a reversal. It’s bad timing insofar as it coincides with an impending solar minimum.
- ringshall 9y agoMagnetic field reversals happen on a completely different timescale than solar minima/maxima. Reversals take a long time to happen: ~1 to 10 ky. Quick on a geological timescale, though.
- Steel_Phoenix 9y agoThe most recent one is thought to have occurred more on the timescale of a human lifetime. https://en.wikipedia.org/wiki/Brunhes%E2%80%93Matuyama_reversal https://en.wikipedia.org/wiki/Brunhes%E2%80%93Matuyama_rever...