Tag Archives: magnetics

Magnetospheres

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Magnetosphere

A magnetosphere is that area of space, around a planet, that is controlled by the planet’s magnetic field. The shape of the Earth’s magnetosphere is the direct result of being blasted by solar wind. It prevents most of the particles from the Sun, carried in the solar wind, from hitting the Earth. The Sun and other planets have magnetospheres, but the Earth has the strongest one of all the rocky planets. The Earth’s magnetosphere is a highly dynamic structure that responds dramatically to solar variations. Life on Earth developed and is sustained under the protection of this variable magnetosphere.

fr/http://science.nasa.gov/heliophysics/focus-areas/magnetosphere-ionosphere/

 

July 1 Solar Eclipse Data

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Partial Solar Eclipse of July 01

 

Just one lunation after the previous one, the third solar eclipse of the year takes place at the Moon’s descending node in western Gemini. This Southern Hemisphere event is visible from a D-shaped region in the Antarctic Ocean south of Africa (Figure 4). Such a remote and isolated path means that it may very well turn out to be the solar eclipse that nobody sees. At greatest eclipse (08:38:23 UT), the magnitude is just 0.097.

for more, go to:    http://eclipse.gsfc.nasa.gov/OH/OHfigures/OH2011-Fig04.pdf

 

Active Volcanoes 6/15-6/21

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Active volcanoes in the world from 15/06/2011 to 21/06/2011

Last update: June 23, 2011 at 11:07 pm by By Armand Vervaeck and James Daniell Leave a Comment

 

The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.
Updated by 2300 UTC every Wednesday, notices of volcanic activity posted on these pages  are preliminary and subject to change as events are studied in more detail. This is not a comprehensive list of all of Earth’s  volcanoes erupting during the week, but rather a summary of activity at volcanoes that meet criteria discussed in detail in the “Criteria and Disclaimers” section. Carefully reviewed, detailed reports on various volcanoes are published monthly in the Bulletin of the Global Volcanism Network.

New Activity or Unrest

to read more, go to:    http://earthquake-report.com/2011/06/23/active-volcanoes-in-the-world-from-15062011-to-21062011/

 

Revised Solar Flare Arrival Date

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fr/spaceweather.com

CME FORECAST, REVISED: A CME propelled toward Earth by the “solstice solar flare” of June 21st may be moving slower than originally thought. Analysts at the GSFC Space Weather Lab have downgraded the cloud’s probable speed from 800 km/s to 650 km/s. Impact is now expected on June 24th at 0700 UT plus or minus 7 hours. In this animated forecast model, the yellow dot is Earth:

A slower CME should deliver a weaker blow to Earth’s magnetic field. Forecasters now predict a relatively mild G1-class (Kp=5) geomagnetic storm when the cloud arrives. High-latitude sky watchers should be alert for auroras during the early hours of June 24. The season favors observers in the southern hemisphere where solstice skies are winter-dark

 

Implications of Solar Predictions

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Solar predictions bring heat and light

by Richard Black, Environment Correspondent
Sun observed by the Soho satelliteThe Sun appears to be calming but that does not necessarily mean cooling on Earth

Over the last few years, the politics of climate change have been amply forged in the fires of a changeable Sun.

And the story is here again, in the form of research unveiled this week at a meeting of the American Astronomical Society (AAS) Solar Physics Division in Las Cruces, New Mexico.

The solar science, described graphically in a Discover Magazine post – “an east/west river of gas” which “flows under the surface of the Sun” that can’t be seen directly but which is inferred from “sound waves that travel from it to the surface” – is fascinating.

And what it suggests is that the Sun appears set to quieten further over the next solar cycle than it already has – with lower sunspot activity, and perhaps marginally lower energy output.

But as to the implications on Earth – well, for anyone who’s followed this story for a while, they’re very familiar, and the telling of them is laced with equally familiar political overtones.

to read more, go to:   http://www.bbc.co.uk/news/science-environment-13792479

 

New Info on Sunspots Due Tuesday

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‘Major Result’ on Sunspot Cycle to be Announced Tuesday

by Mike Wall, SPACE.com Senior Writer
Date: 10 June 2011 Time: 05:00 PM ET
A photo of a sunspot taken in May 2010, with Earth shown to scale. The image has been colorized for aesthetic reasons. This image with 0.1 arcsecond resolution from the Swedish 1-m Solar Telescope represents the limit of what is currently possible in te
A photo of a sunspot taken in May 2010, with Earth shown to scale. The image has been colorized for aesthetic reasons. This image with 0.1 arcsecond resolution from the Swedish 1-m Solar Telescope represents the limit of what is currently possible in terms of spatial resolution.
CREDIT: The Royal Swedish Academy of Sciences, V.M.J. Henriques (sunspot), NASA Apollo 17 (Earth)

Astronomers will unveil a “major result” on Tuesday (June 14) regarding the sun’s 11-year sunspot cycle.

The announcement will be made at a solar physics conference in New Mexico, according to an alert released today (June 10) by the American Astronomical Society. The discussion will begin at 1 p.m. EDT (1700 GMT).

Sunspots are blotches on the sun that appear dark because they are significantly cooler than the rest of the solar surface. While they look small from our vantage point on Earth, these enigmatic structures can be huge — up to 30,000 miles (48,280 kilometers) across, or as wide as the planet Neptune. Sunspots last for a few days or weeks before dissipating. [Photos: Sunspots on Earth’s Star]

to read more, go to: http://www.space.com/11936-sun-weather-sunspot-cycle-announcement-preview.html

Correlation – Geomagnetic Storm & Earthquakes?

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Geomagnetic storm to slam planet on Wednesday, earthquake frequency to rise

Published on June 7, 2011 8:50 pm PT
– By Jim Duran – Writer
– Article Editor and Approved – Warren Miller


Click for larger image

(TheWeatherSpace.com) — NOAA is warning of a geomagnetic storm sometime on Wednesday, which may knock communications and grids in some locations.

The Sun released a moderate-classed solar flare (M2) on Tuesday. This flare was a different kind because it started out slow, then the sun blasted it off like a volcanic eruption.

Satellites recorded this rare event (Video Here).

“This is the type of time where people should have their earthquake kits handy,” TWS Senior Meteorologist Kevin Martin said. “There isn’t much evidence, but it is a growing fact that solar storms trigger earthquakes here on Earth. Peru just had a magnitude-6.0 earthquake, and this usually means Baja and California are next in line.”

Meteorologists are against Martin for his belief and stance that solar storms trigger earthquakes, but there is a growing amount of eyes that are being opened to the possibility it may actually hold weight.

fr/http://www.theweatherspace.com/news/TWS-06_07_2011_geoquake.html