[Home]  [Headlines]  [Latest Articles]  [Latest Comments]  [Post]  [Sign-in]  [Mail]  [Setup]  [Help] 

Status: Not Logged In; Sign In

Texas Flood

Why America Built A Forest From Canada To Texas

Tucker Carlson Interviews President of Iran Mosoud Pezeshkian

PROOF Netanyahu Wants US To Fight His Wars

RAPID CRUSTAL MOVEMENT DETECTED- Are the Unusual Earthquakes TRIGGER for MORE (in Japan and Italy) ?

Google Bets Big On Nuclear Fusion

Iran sets a world record by deporting 300,000 illegal refugees in 14 days

Brazilian Women Soccer Players (in Bikinis) Incredible Skills

Watch: Mexico City Protest Against American Ex-Pat 'Invasion' Turns Viole

Kazakhstan Just BETRAYED Russia - Takes gunpowder out of Putin’s Hands

Why CNN & Fareed Zakaria are Wrong About Iran and Trump

Something Is Going Deeply WRONG In Russia

329 Rivers in China Exceed Flood Warnings, With 75,000 Dams in Critical Condition

Command Of Russian Army 'Undermined' After 16 Of Putin's Generals Killed At War, UK Says

Rickards: Superintelligence Will Never Arrive

Which Countries Invest In The US The Most?

The History of Barbecue

‘Pathetic’: Joe Biden tells another ‘tall tale’ during rare public appearance

Lawsuit Reveals CDC Has ZERO Evidence Proving Vaccines Don't Cause Autism

Trumps DOJ Reportedly Quietly Looking Into Criminal Charges Against Election Officials

Volcanic Risk and Phreatic (Groundwater) eruptions at Campi Flegrei in Italy

Russia Upgrades AGS-17 Automatic Grenade Launcher!

They told us the chickenpox vaccine was no big deal—just a routine jab to “protect” kids from a mild childhood illness

Pentagon creates new military border zone in Arizona

For over 200 years neurological damage from vaccines has been noted and documented

The killing of cardiologist in Gaza must be Indonesia's wake-up call

Marandi: Israel Prepares Proxies for Next War with Iran?

"Hitler Survived WW2 And I Brought Proof" Norman Ohler STUNS Joe Rogan

CIA Finally Admits a Pyschological Warfare Agent from the Agency “Came into Contact” with Lee Harvey Oswald before JFK’s Assassination

CNN Stunned As Majority Of Americans Back Trump's Mass Deportation Plan


Science/Tech
See other Science/Tech Articles

Title: Perfect Space Storm Could be Catastrophic on Earth, Study Concludes
Source: space.com
URL Source: http://www.space.com/scienceastrono ... 0107-space-weather-storms.html
Published: Apr 7, 2009
Author: Robert Roy Britt
Post Date: 2009-04-10 16:03:02 by farmfriend
Ping List: *Agriculture-Environment*     Subscribe to *Agriculture-Environment*
Keywords: None
Views: 272
Comments: 6

Perfect Space Storm Could be Catastrophic on Earth, Study Concludes

By Robert Roy Britt
Editorial Director
posted: 07 January 2009
09:03 am ET

The sun works on a pretty well known 11-year cycle of activity, all measured by sunspots and solar flares.

But like the stock market, the sunspot cycle is unpredictable. And just when astronomers thought it had hit bottom, it went lower. It has been a bear market for sunspots for many months now. That also means there have been no major space storms, which can zap satellites and threaten power grids on Earth.

There were no sunspots observed on 266 days during 2008, or 73 percent of the time. The last year things were quieter was 1913, which had 311 spotless days. Some observers figured the solar cycle had hit bottom in 2008.

But the sunspot recession is not over. Sunspot counts for 2009 have dropped even lower, the space agency announced today. As of March 31, there were no sunspots on 78 of the year's 90 days (87 percent).

"This is the quietest sun we've seen in almost a century," said sunspot expert David Hathaway of the Marshall Space Flight Center.

Why it matters

It matters because scientists would like to be able to predict when things will pick up, and when the next "solar maximum" will occur. At peak activity, tentatively expected in three or four years, more and more powerful solar storms up the odds of a satellite failure or a power grid malfunction.

Solar storms pack charged particles that slam into our atmosphere and, when they penetrate, can cause a cascade of failures in satellites and power systems.

A recent report by National Academy of Sciences concluded that a major storm during the next peak could cripple power grids and other communications systems and could be catastrophic, with effects leading to a potential loss of governmental control of the situation.

Other records set in 2008:

A 50-year low in solar wind pressure: Measurements by the Ulysses spacecraft reveal a 20 percent drop in solar wind pressure since the mid-1990s -- the lowest point since such measurements began in the 1960s. The solar wind helps keep galactic cosmic rays out of the inner solar system. With the solar wind flagging, more cosmic rays are permitted to enter, resulting in increased health hazards for astronauts. Weaker solar wind also means fewer geomagnetic storms and auroras on Earth.

A 55-year low in solar radio emissions that might -- or might not -- indicate weakness in the sun's global magnetic field.

A 12-year low in solar irradiance: Several NASA spacecraft find the sun's brightness has dropped by 0.02% percent at visible wavelengths and a whopping 6 percent at extreme UV wavelengths since the solar minimum of 1996.

These changes are not enough to reverse the course of global warming, the agency stated, but there are some other, noticeable side-effects: Earth's upper atmosphere is heated less by the sun and it is therefore less "puffed up." Satellites in low Earth orbit experience less atmospheric drag, extending their operational lifetimes. Unfortunately, dangerous space junk also remains longer in Earth orbit, increasing hazards to spacecraft and satellites.

"We're experiencing a very deep solar minimum," said solar physicist Dean Pesnell of the Goddard Space Flight Center.

What's up?

All these lows have sparked a debate about whether the ongoing minimum is "weird", "extreme" or just an overdue "market correction" following a string of unusually intense solar maxima.

"Since the Space Age began in the 1950s, solar activity has been generally high," notes Hathaway. "Five of the ten most intense solar cycles on record have occurred in the last 50 years. We're just not used to this kind of deep calm."

Deep calm was fairly common a hundred years ago. The solar minima of 1901 and 1913, for instance, were even longer than the one we're experiencing now. To match those minima in terms of depth and longevity, the current minimum will have to last at least another year.

Pesnell believes sunspot counts will pick up again soon, "possibly by the end of the year," to be followed by a solar maximum of below-average intensity in 2012 or 2013. Subscribe to *Agriculture-Environment*

Post Comment   Private Reply   Ignore Thread  


TopPage UpFull ThreadPage DownBottom/Latest

Begin Trace Mode for Comment # 4.

#1. To: farmfriend (#0)

we're doomed bump

Lod  posted on  2009-04-10   16:53:25 ET  Reply   Untrace   Trace   Private Reply  


#2. To: lodwick, armfriend (#1)

Lasr night on Coast to Coast Am radio show Ed Dames was the guest. He claims to be a remote viewer and makes predictions about the future. He said World War III starts in 6 months when Israel attacks Iran. He also says the sun will emit a kill shot in 5 years that will down the power grid and kill most of humanity. Firtunately for us he has a poor track record as a psychic.

On a personal note I wonder what will happen on 10-19-2009 rhe date on which the world comes to an end according to the movie Knowing which I saw a few weeks ago.

Horse  posted on  2009-04-10   19:03:38 ET  Reply   Untrace   Trace   Private Reply  


#4. To: Horse, Esso, all (#2)

I don't know.

Reading all this 'stuff' kinda makes my head hurt.

If Jesus doesn't know when the end is coming, how can these mullets call it?

Only the Father knows.

Lod  posted on  2009-04-10   20:19:01 ET  Reply   Untrace   Trace   Private Reply  


Replies to Comment # 4.

        There are no replies to Comment # 4.


End Trace Mode for Comment # 4.

TopPage UpFull ThreadPage DownBottom/Latest


[Home]  [Headlines]  [Latest Articles]  [Latest Comments]  [Post]  [Sign-in]  [Mail]  [Setup]  [Help]