21Sep 2022 by Nigel Fleming No Comments
linkedin post 2020-12-08 04:22:32

linkedin post 2020-12-08 04:22:32

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PRESSURE WAVES. “Interplanetary shocks when interacting with the Earth’s bow shock cause direct energy transfer into the magnetosphere. The ram pressure pulse associated with the shock compresses the dayside magnetopause, and the compression effects travel tailward at the solar wind speed causing strong auroral activity observable almost instantaneously all around the auroral oval.” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2020-12-08 04:20:51

linkedin post 2020-12-08 04:20:51

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PERIODICITY. “The CIRs seldom have fast shocks or continuous, strongly southward IMF Bz, and thus drive only moderate magnetospheric activity. CIRs, being associated with the coronal hole structure, also exhibit 27-day periodicity.” (CIR = corotating interaction regions); (IMF= interplanetary magnetic field). https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2020-12-09 04:45:14

linkedin post 2020-12-09 04:45:14

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SUN AND OZONE. “As the energetic particles can penetrate to 20–40 km altitude (depending on their energy), they also affect the middle and upper atmospheric chemistry while colliding with the atmospheric constituents: The particle precipitation leads to an enhancement of NO2 in the atmosphere, which in turn is a catalyst for ozone destruction. This way the solar activity also affects the long-term balance of the atmospheric chemistry.” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-12-09 04:42:17

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ERUPTIVE SOLAR FLARE YESTERDAY. “Solar activity has been fairly boring during the past few days but a surprise solar flare woke us up. A long duration C7.41 solar flare peaked today at 16:32 UTC. Sunspot region 2790 is to blame and that is a sunspot region facing Earth! Long duration solar flares are known to produce coronal mass ejections so the question is... was this an eruptive event? C7.4 solar flare. Monday, 7 December 2020 - 19:45 UTC. The answer to that question is a huge yes!“ https://www.spaceweatherlive.com/en/news/view/422/20201207-c7-4-solar-flare.html View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-12-10 05:50:35

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POST-ENLIGHTENMENT. “The purpose of this article is to show the shift in emphasis in modern concepts from anthropocentricity and rationalism to bio-, eco-, post-humanism and irrationalism in the digital era. The project known as “Enlightenment” is over. What is the 21st century going to offer instead?” https://lnkd.in/dGx4Xe8 View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2020-12-10 05:49:15

linkedin post 2020-12-10 05:49:15

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DEFORMED SHAPE. “In the antisunward direction, the solar wind flow deforms the dipolar magnetic field to a cometary taillike shape where the magnetopause is on average about 30 RE from the Sun-Earth line, depending on the solar wind pressure. The magnetotail extends far beyond lunar orbit at least a few hundred RE in the antisunward direction.” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2020-12-10 05:46:37

linkedin post 2020-12-10 05:46:37

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MAG FIELD DEFORMATION. “Typical solar wind conditions give a standoff distance of the magnetopause at about 10 RE (Earth radius = 6370 km) upstream of the Earth, but under strong solar wind driving the magnetopause can be pushed well inside the geostationary orbit (at 6.6 RE where a satellite orbiting around the Earth has a 24-hour rotation period and thus remains at a constant longitude above the Earth).” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn
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