|A New Theory of Magnetic Storms was nominated for deletion. The debate was closed on 30 December 2010 with a consensus to merge. Its contents were merged into Geomagnetic storm. The original page is now a redirect to here. For the contribution history and old versions of the redirected article, please see its history; for its talk page, see here.|
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|The content of Magnetospheric convection and magnetic storms was merged into Geomagnetic storm. For the contribution history and old versions of the redirected page, please see ; for the discussion at that location, see its talk page. (april, 2008)|
- 1 Halloween Superstorm 2003?
- 2 Give it a twist
- 3 GPS scintillation
- 4 Compliments
- 5 Geomagnetic Storm of 2006
- 6 Merge
- 7 Magnetic pigeons ?
- 8 GIC
- 9 Theory
- 10 Interesting
- 11 Multi-year blackout due to geomagnetic storm?
- 12 Some previous move issue
- 13 Move
- 14 Pipelines
- 15 Reference for risk for undersea cables broken?
- 16 Once again????
- 17 New Introduction and Definition Sections
- 18 Merge completed
- 19 113 days to reach earth ?!?
- 20 Who's "Odenwald"?
- 21 Bogus statement in article
- 22 Unit Conversion Errors
Halloween Superstorm 2003?
I've seen mention of a Halloween 2003 Superstorm on a couple of sites (like http://sdo.gsfc.nasa.gov/mission/science/timescale.php). Would that bear mentioning in this article? And is there anyone more knowledgeable than myself who would like to add it? Jedikaiti (talk) 23:24, 10 February 2010 (UTC)
Give it a twist
That schematic needs some axial tilt. That's one reason I didn't use it. And it is polite to include a source URL in the Image page...and practical in case someone eventually makes a robot check for updated images. (SEWilco 08:05, 19 Mar 2005 (UTC))
Some shematics have an axial tilt, but one might ask whether or not this is really important for the level of discussion included here. Furthermore, although the axis of the dipole is, in fact, tilted with respect to the Earth's rotational axis, its depiction in a diagram assumes a certain visual perspective, one where the tilt is actually visible in a two-dimensional plane.
The schematic was taken for the USGS Geomagnetism Program website at http://geomag.usgs.gov and was produced originally by Mitazeijaa.love
This vanished from the page overnight. If it was intentional, could there be some discussion here first please? I replaced the text, but did not revert the page as Shaddack had already made a large number of improvements to the page.
GPS signals are affected when solar activity causes sudden variations in the density of the ionosphere, causing the GPS signals to scintillate. The scintillation of satellite signals during ionospheric disturbances is studied at HAARP during ionospheric modification experiments. It has also been studied at the National Science Foundation equatorial ionospheric observation facility in Jicamarca, Peru.
- John Elder 3 July 2005 18:41 (UTC)
Well writen article! Info D 15:11, 14 October 2006 (UTC)
Geomagnetic Storm of 2006
We are just beginning to see effects from the solar storm caused by sunspot 930 (see http://www.foxnews.com/story/0,2933,236520,00.html), and likely this will even be strong enough to cause the northern lights to be visible in the Northern Continental United States. Perhaps this storm is worth mentioning in addition to the storm of 1989. Of course, it's just a little early to add it, but anyone reading this after it occurrs, see if it is newsworthy enough to be mentioned. I would add it myself, but I will more than likely forget :D Bourgeoisdude 20:00, 14 December 2006 (UTC)
- If it is newsworthy then that news will remind plenty of people about this article. Sunspot 930 has been in the news enough already that I'm sure several people reading this have been aware of 930 for days. If something significant happens the article will be udpated. Unless it knocks out the servers, in which case the city herald will tell us the news. (SEWilco 06:00, 15 December 2006 (UTC))
Magnetic pigeons ?
"Pigeons and other migratory animals, such as dolphins and whales, have internal biological compasses composed of the mineral magnetite wrapped in bundles of nerve cells." Can anyone provide a good source for this statement? It sounds far-fetched to me, and not really borne out by the info on the Homing pigeon article. --Kiwi137 15:52, 26 April 2007 (UTC)
I moved this from Geomagnetically induced currents, if any of it is not yet included in this article, it probably should:
Here we discuss the ground effects of space weather, but we note that space weather also impacts other technologies, for example, those associated with airlines, Earth-orbiting satellites, GPS, radio communication systems, and unmanned space missions. Astronaut health during space weather events, for example during extended stays on the International Space Station, and on any future Moon and Mars missions, continues to be a prime consideration for national and international space agencies.
I found this page lacks a proper explanation of the evolution of a magnetic storm. I appreciate that it might be contested theory, but, even in the absence of consensus, can anyone provide an explanation? Warrickball (talk) 22:23, 3 May 2008 (UTC)
FTA: "Computers are not usually viewed as scientific instruments..." which I thought was hilarious when taken out of context. Of course, in context it's referring to sensor-type "instruments" such as found on a satellite. Could someone rewrite this in a less confusing way? 184.108.40.206 (talk) 19:28, 21 August 2008 (UTC)
Multi-year blackout due to geomagnetic storm?
This seems implausible--wouldn't a storm, even a large one, just trip protection devices and take the grid down for a while until it could be black started? The only source is a review of a TV movie, which seems too many levels removed from real fact to be the only support for this statement. Dbrunner (talk) 02:04, 18 November 2008 (UTC)
- Agreed, these are fictional scenarios which claim to be based in science, not actual scientific predictions. I removed the claim. -- Beland (talk) 01:17, 15 December 2008 (UTC)
- I'm not sure that "fictional" is the best way to describe these scnearios. "Speculative," definitely. "Hypothetical," definitely. "Alarmist," possibly. Note that the NASA-funded National Academy of Sciences report on risks posed by space weather contains some pretty frightening language: potential for large-scale blackouts...potential for permanent damage that could lead to extraordinarily long restoration times....potential for long-duration catastrophic impacts to the power grid and its users....[T]he effects on these interdependent infrastructures could persist for multiple years.... So it's not only the writers of made-for-TV movies who are talking about the potential for multi-year disruptions of infrastructure. 220.127.116.11 (talk) 15:32, 8 May 2009 (UTC)
- There are definitely alarmist reports from the NASA-NAS crowd. But PJM, which runs the electrical grid that had problems last time, has prepared for the next one. The big problem last time was that they didn't have sensing for DC currents between grounded transformers induced by geomagnetic fields which were pushing transformers into partial saturation. Now they do. There are measures to take when this happens. ("Salem 1 and 2 units will reduce to 80% power and Hope Creek to 85% power if ... Transformer neutral DC currents in excess of 5 amperes")  --John Nagle (talk) 06:37, 15 November 2013 (UTC)
Some previous move issue
I don't think the comment regarding increased corrosion rates is correct. Some sources suggest the corrosion rate is not affected that much. If there are no objections, I'll edit accordingly and add sources.Apau98 (talk) 06:40, 23 August 2010 (UTC)
Reference for risk for undersea cables broken?
The Pipelines section of the article says Once again, pipeline managers thus receive space weather alerts and warnings to allow them to implement defensive measures. Is it necessary? --Anirudh Emani (talk) 11:49, 20 March 2011 (UTC)
New Introduction and Definition Sections
I made a major modification to the introduction section and added a definition section to improve the accuracy of this article. The rest of the article is unchanged but I can see several parts that need improvement. In particular, the Interactions with planetary processes section is quite incomplete. I think the Geomagnetic storm effects section could be shortened because much of the material is covered by other Wikipedia articles. Richfj (talk) 12:00, 12 May 2011 (UTC)
|Text and/or other creative content from A New Theory of Magnetic Storms was copied or moved into Geomagnetic storm with this edit on 6 November 2011. The former page's history now serves to provide attribution for that content in the latter page, and it must not be deleted so long as the latter page exists. The former page's talk page can be accessed at Talk:A New Theory of Magnetic Storms.|
113 days to reach earth ?!?
Hello. Plasma from solar flare travels at about 800 km/s, and reaches earth in about 2 days. Please check and correct. I'm French, I will not edit an english page. I already corrected the french page. Thank you. (Flevavasseur (talk) 06:06, 2 October 2013 (UTC))
"Odenwald suggests that a geomagnetic storm on the scale of the solar storm of 1859 today would cause billions of dollars of damage to satellites, ..."
https://en.wikipedia.org/w/index.php?title=Geomagnetic_storm&oldid=676768855#Disruption_of_electrical_systems ---18.104.22.168 (talk) 14:31, 17 October 2015 (UTC)
Bogus statement in article
This seems totally bogus: "Since long powerlines (such as the ones coming from the mains electricity grid) gather and convey a huge amount of electric power from the solar storms, it is very likely that any connected domestic equipment that is connected to it will be damaged during a powerful solar storm. (citation needed)". Serious induction problems from geomagnetic storms may occur on lines hundreds of kilometers long. Residential drop lines from the distribution transformer are hundreds of meters, not long enough for this effect. Removed entire section, which was cited to a home improvement blog and Reddit. John Nagle (talk) 22:24, 5 January 2016 (UTC)
Unit Conversion Errors
There are a couple of places where the magnetic field strength units are in error, such as this statement:
"During quiet times, Dst is between +20 and -20 nano-Tesla (nT). IN CGS, this is between +2 and -2 megagauss."
Since 1 Tesla equates to 10,000 Gauss, +20 and -20 nano-Tesla would not be in the megagauss range.
Similar errors occur later in the article.