เหตุการณ์ใน-นอกโลก VS ภัยธรรมชาติ และupdate พายุสุริยะ

โห กำลังจะเอามาโพสต์พอดีเลย แจ่มมาก

 

[VDO]hhttp://www.spaceweather.com/swpod2011/19jan11/plasmarain.m4v?PHPSESSID=9upltv5rfico8j9vcslk5vlmg1[/VDO]

 

พยากรณ์อุณหภูมิตั้งแต่วันที่ 19-27 มกราคม และ 27-4 กุมภาพันธ์



อ้างอิง

ดูจากรูป (ที่ 2) 27 Jan-4 Feb อากาศเย็นจะค่อนลงมาทางอีสานตอนบนเหนือตอนบน และอีสานตอนล่างและเหนือตอนลาง

ส่วนภาพที่ 3 เห็นว่าแถวๆ ภาคกลาง จะมีอุณหภูมิหนาวเย็นผิดปกติ
(งงเหมือนกัีน)
:boo:

 

พระอาทิตย์ขี้นสองวันก่อนกำหนดที่ Greenland

• 

พระอาทิตย์ขี้นถีงสองวันล่วงหน้าที่ประเทศกรีนแลนด์ ซึ่งเป็นครั้งแรกในประวัติศาสตร์ นักวิทยาศาสตร์คาดว่าเกิดจากการที่น้ำแข็งละลายทำให้มุมมองเห็นพระอาทิตย์ เปลี่ยนไป แต่ก็ทำให้เกิดความกังวลให้เกี่ยวกับสภาพอากาศที่เปลี่ยนแปลงของโลก


The sun rises two days early in Greenland, sparking fears that climate change is accelerating



By Daily Mail Reporter
Last updated at 4:29 PM on 14th January 2011

The sun over Greenland has risen two days early, baffling scientists and sparking fears that Arctic icecaps are melting faster than previously thought.


Experts say the sun should have risen over the Arctic nation's most westerly town, Ilulissat, yesterday, ending a month-and-a-half of winter darkness.



But for the first time in history light began creeping over the horizon at around 1pm on Tuesday - 48 hours ahead of the usual date of 13 January.


The mysterious sunrise has confused scientists, although it is believed the most likely explanation is that it is down to the lower height of melting icecaps allowing the sun's light to penetrate through earlier.





Climate change? The sun rose in Ilulissat, Greenland, two days early on Tuesday, ending a month-and-a-half of winter darkness. One theory is that melting ice caps have lowered the horizon allowing the sun to shine through earlier

Thomas Posch, of the Institute for Astronomy of the University of Vienna, said that a local change of the horizon was 'by far the most obvious explanation'.
He said as the ice sinks, so to does the horizon, creating the illusion that the sun has risen early.


More...

• Earth is ‘twice as dusty’ now as it was 100 years ago
• MICHAEL HANLON: So did 2010 break the global warming record?

This theory, based on the gradual decline of Greenland's ice sheet, is backed by recent climate studies.
A report by the World Meteorology Organisation shows that temperatures in Greenland have risen around 3C above average over the last year.
It also reported that December was much warmer than usual with rainfall instead of snow recorded for the first time in Kuujjuaq since records began.



Low horizon: The fishing town of Ilulissat is Greenland's most westerly habitation. Temperatures in Greenland have risen 3C above average over the last year



It has even been suggested that the sun's early appearance could have an astronomical explanation.



But Wolfgang Lenhardt, director of the department of geophysics at the Central Institute for Meteorology in Vienna, scotched this theory.


He said: 'The constellation of the stars has not changed. If that had happened, there would have been an outcry around the world.


'The data of the Earth's axis and Earth's rotation are monitored continuously and meticulously and we would know if that had happened.'

Read more: The sun rises two days early in Greenland, sparking fears that climate change is accelerating | Mail Online



​

 

ฝนดาวหางพุ่งชนดวงอาทิตย์ มีโอกาสที่จะเป็นดาวหางขนาดใหญ่กว่าที่ชนพุ่งชนดวงอาทิตย์

"Suicide" Comet Storm Hits Sun—Bigger Sun-Kisser Coming?


The sun-kissing comet Ikeya-Seki, as it appeared in the dawn sky in 1965.



Photograph by Victor R. Boswell, Jr., National Geographic

Andrew Fazekas


for National Geographic News
Published January 17, 2011

A recent storm of small comets that pelted the sun could herald the coming a much bigger icy visitor, astronomers say.


Since its launch in 1995, NASA's Solar and Heliospheric Observatory, or SOHO, orbiter has captured pictures of 2,000 comets as they've flown past the sun.


Most of these comets are so-called sungrazers, relatively tiny comets whose orbits bring them so near the sun that they are often vaporized within hours of discovery. (See a picture of a sungrazer spied in October.)


The sun-watching telescope usually picks up one sungrazer every few days. But between December 13 and 22, SOHO saw more than two dozen sungrazers appear and disintegrate.


Seeing "25 comets in just ten days, that's unprecedented," Karl Battams, of the United States Naval Research Laboratory in Washington, D.C., said in a statement. "It was crazy!"


According to Battams and colleagues, the comet swarm could be forerunner fragments from a much larger parent comet that may be headed along a similar path. And such a large icy body coming so near the sun would result in a spectacular sky show.

Sun-Kissing Comet "Granddaddy" on the Way?
Despite becoming a leading comet hunter, SOHO was initially designed to study the sun. For example, one camera on the probe uses a device called a coronagraph to block out the main body of the sun so that it can see fainter features in the star's upper atmosphere.
(Related: "Sun Erupts—Epic Blast Seen by NASA Solar Observatory." With video)


As it happens, this setup also allows SOHO to spot tiny, house-size comets taking their death plunges.
Over the years, the number of sungrazing comets detected by SOHO has increased, from 69 in 1997 to 200 in 2010.
Even after accounting for more participation from comet hunters and efforts to optimize images for comet-spotting, the numbers appear to show a significant increase in sungrazers, the astronomers say.


(Related: "Weird Asteroid Really a Crusty Old Comet?")
And the recent flurry of kamikaze comets may be pieces from a larger body similar to the Ikeya-Seki comet of 1965, Battams and colleagues say.


The granddaddy of all sungrazing comets, the three-mile-wide (five-kilometer-wide) core of Ikeya-Seki swept within 280,000 miles (450,000 kilometers) of the solar surface.


Rather than vaporizing, the large comet survived its close encounter and whipped around the sun, becoming so bright in Earth's sky that, for a time, it was visible during the day.
Since there were no space-based solar probes at the time, no one knows whether that event was preceded by a storm of smaller comets.

Comet Storm Remnants of a Broken Body?
But according to comet hunter David Levy, the coming of a large sungrazer is just speculation for now. Comets in general are quite fragile and break apart easily, so this comet storm may simply be the last gasp of a bigger body that no longer exists, he said.


"Most of the comets that SOHO has discovered have been rather small and are probably little fragments that have spilt off of much larger comets that had previous encounters with the sun," said Levy, co-discoverer of the famous Shoemaker-Levy 9 comet that hit Jupiter in 1994.
(Related: "Third Jupiter Fireball Spotted—Sky-Watching Army Needed?")


Comet expert Don Yeomans, of NASA's Jet Propulsion Laboratory in Pasadena, California, agrees.


"I would be surprised if there really is a larger object waiting to come in and take center stage and these smaller objects are its precursers," Yeomans said. "It's more likely these could be the remnants of a much larger object that broke up and is no longer with us."


The only way to know for sure, Yeomans said, is to watch and see if the rate of increase in sungrazers continues, which he admits would be "pretty amazing and unusual."
He also warns that if there is another Ikeya-Seki barreling toward the sun, sky-watchers shouldn't hold their collective breath. After all, if you trace the orbital paths of the comet storm, any parent body would be coming from the farthest reaches of the solar system.


"We are talking about long waiting periods" until such a comet neared the sun, he said, "possibly anywhere upward of thousands to millions of years."





Death of a Comet

Image courtesy SOHO/NASA
Aided by its occulting disk (center), to block out the sun's glare, NASA's Solar and Heliospheric Observatory, or SOHO, may hold the record for witnessing the most cometary suicides.


The orbiting probe is uniquely outfitted to spot smaller, fainter comets close to the sun, including this likely member of the Kreutz sungrazer family, thought to be fragments from the breakup of a giant comet at least 2,000 years ago.


Visible from October 19 to 21, this small comet apparently disintegrated as it neared our star.


Published October 28, 2010

 

ดาวตกที่สว่างจ้า ผ่านท้องฟ้าจากชิคาโก้ ไปอินเดียน่า เมื่อคืนวันพุธที่ผ่านมา

<table border="0" cellpadding="2" cellspacing="2" width="100%"><tbody><tr><td colspan="2" valign="top" width="100%">2011-01-20 06:01:06 - Event into space - USA

</td> </tr> <tr> <td colspan="2" width="100%">
</td> </tr> <tr> <td valign="top"> <table align="left" border="0" cellpadding="1" cellspacing="1" width="100%"> <tbody><tr> <td width="25%">EDIS Code:</td> <td>CO-20110120-29249-USA</td> </tr> <tr> <td>Date&Time:</td> <td>2011-01-20 06:01:06 [UTC]</td> </tr> <tr> <td>Continent:</td> <td>North-America</td> </tr> <tr> <td>Country:</td> <td>USA</td> </tr> <tr> <td>State/Prov.:</td> <td>USA Airspace, </td> </tr> <tr> <td>Location:</td> <td>Chicago area to Indiana, </td> </tr> <tr> <td>City:</td> <td>
</td> </tr> <tr> <td colspan="2"> Not confirmed information!
</td> </tr> </tbody></table> </td> <td align="right" width="440"> </td> </tr> <tr> <td colspan="2" valign="top"> Description: </td> </tr><tr> <td colspan="2" valign="top"> An unusually bright shooting star shot across the sky Wednesday night, prompting sighting reports from the Chicago area to Indiana, a local astronomer said. A green-tinted burst was reported by amateur astronomers in LaPorte, Ind., just after 8 p.m.., said Adler Planetarium astronomer Chris Lintott. The shooting star, which was a meteor probably about the size of 10 grains of salt, likely didn't hit the ground or become a meteorite, he said. Meteoroids are pieces of material traveling through space that become meteors when they streak through the Earth's atmosphere and meteorites if they strike the ground. At least one motorist on a Chicago expressway also saw the flash.


แต่เหมือนกับว่าไม่ตกลงเพื้นดิน

</td></tr></tbody></table>

 

C-Flare / Solar Update
01/22/2011 by Kevin VE3EN at 06:00
Comment on Message Board C-Flare - A C3.3 Solar Flare took place around Sunspot 1147 early Friday. Keep an eye around this region for further activity.

 

[FONT=Arial, Helvetica, sans-serif]BIG AND SPOOKY: [/FONT] The largest rocket ever launched from the west coast of the USA blasted off from California's Vandenberg Air Force Base on Jan. 20th at 1:10 pm PST. "The 23 story-high Delta IV Heavy rocket used three boosters, which produced more than two millions pounds of thrust to carry its payload into orbit," says photographer Anthony Galvan III, who recorded the launch on Figueroa Mountain some 40 miles from the Air Force base:

​

The massive rocket's "spooky" payload was a top-secret spy satellite belonging to the US National Reconaissance Office. Any doubts about the covert nature of the mission were dispelled 10 minutes after liftoff when the rocket's live feed went deliberately black. Only a twisting contrail in the blue Pacific sky reminded onlookers that, yes, it really happened.
more images: from John Boyd of Santa Barbara, CA;





<table width="800" align="center" background="images/light_gray_background.gif" border="0" cellpadding="0" cellspacing="0" height="1000"><tbody><tr><td valign="top" width="671"><table width="100%" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td width="1%">
</td> <td width="99%"> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td width="88%">john boyd </td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td class="columnTitlesText" width="78%">Image taken:</td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td class="columnContentText" width="78%">Jan. 20, 2011</td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td class="columnTitlesText" width="78%">Location:</td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td class="columnContentText" width="78%">Santa Barbara, CA, USA</td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td class="columnTitlesText" width="78%">Details:</td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td class="columnContentText" width="78%">Today there was a Delta IV launch out of Vandenberg Airforce Base. It was the biggest rocket launched from the west coast. It climbed into the atmosphere very quickly. By the time it flew over us the rocket had disappeared high into the atmosphere. This is what it looked like from the coast of Santa Barbara. </td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table><table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table><table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> </td> </tr> </tbody></table> </td> <td valign="top" width="90"> </td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table>

©2008, SpaceWeather.com -- This site is penned daily by Dr. Tony Phillips.​

 

มีจุดเล็กๆ เกิดขึ้นใกล้จุดดับหลัก 1147 อาจทำให้เกิดปปฏิกริยาพระอาทิตย์เพิ่มขึ้น

[FONT=Arial, Helvetica, sans-serif]SUNSPOT ACTIVITY: [/FONT] A rash of small spots is rapidly emerging near the main core of sunspot group 1147, and this could herald an increase in solar activity. Click on the image, below, to launch a 9 MB movie from Solar Dynamics Observatory:

​

The reason this rash is interesting has to do with its magnetic characteristics. It is an evolving jumble of magnetic polarities, with positive (+) pressing against negative (-) in many places. These are favorable condition for magnetic reconnection and solar flares. researchers with solar telescopes are encouraged to monitor the region for further developments.


Solar Update - A new sunspot group is growing rapidly just to the south of Sunspot 1147. There is a chance for C-Class flares and perhaps a lesser chance of an M-Class event.
​

 

เอาใหม่ เนื่องจากกระทู้สัตว์ตายหมู่ เดี๋ยวเริ่มต้นบันทึกสิ่งต่างๆ ที่เกิดขึ้นแต่ละวัน ตั้งแต่วันที่ 28 ธันวาคม ดีกว่า

 

บันทึกเหตุการณ์วันที่ 28 ธันวาคม 2010

28 ธันวา 2010

x-ray จาก Solar Flare - ปกติ



พายุแม่เหล็กโลก ขึ้นไป Level G1



[FONT=Arial, Helvetica, sans-serif]GEOMAGNETIC STORM: [/FONT]High-latitude sky watchers should be alert for auroras. During the early hours of Dec. 28th, the sun's magnetic field near Earth tipped south, opening a crack in Earth's magnetosphere. Solar wind poured and sparked a G1-class (Kp=5) geomagnetic storm. Observers are reporting ground currents and intensifying Northern Lights in Scandinavia.

พายุแม่เหล็กโลก เป็นระดับ G1-Class

[FONT=Arial, Helvetica, sans-serif]GIANT STORM ON SATURN: [/FONT]Got a telescope for Christmas? Point it at Saturn. A giant storm even brighter than Saturn's rings is raging through the planet's cloudtops. "I've never seen anything like this," says veteran planetary photographer Anthony Wesley. "It's possible that this is the biggest storm on Saturn in many decades." Here it is recorded by Wesley's 16-inch telescope on Dec. 22nd:

พายุแม่เห็นขาดมหึมาบนดาวเสาร์

​

Instruments on NASA's Cassini spacecraft are picking up strong bursts of radio static. Apparently, lightning is being generated in multiple cells across the storm front. Cassini's cameras are also beaming back fantastic images of the tempest.


"At it's current size and brightness, the storm should be visible to anyone with a mid-size scope under steady seeing," continues Wesley. "This is a great time to be a planetary photographer." [Sky maps: Dec. 29, 30, 31]

more images: from Fredy Willems of Waipahu, Hawaii; from Glenn Jolly of Gilbert, Arizona; from Christopher Go of Cebu City, Philippines; from Sadegh Ghomizadeh of Tehran, Iran; from Vincent Lao of Pasig City, Philippines

[FONT=Arial, Helvetica, sans-serif]SUN IN A BEER CAN:[/FONT] Last July, Jan Koeman of Middelburg, the Netherlands, poked a tiny hole in an empty beer can, inserted a piece of photographic paper, and pointed the pinhole toward the sun. Six months later (Dec. 23, 2010) he extracted the paper and beheld the result:​

"This is called solargraphy," explains Koeman. "Every day the sun makes a track across the photographic paper--high in the summer and low in the winter. Daily tracks are interrupted by clouds and, occasionally, absent altogether because of rainy days." It's a low-tech but beautiful way to record the seasons; browse the links below for more examples.

more solargraphy: from Becky Ramotowski of Tijeras, New Mexico; from Rijk-Jan Koppejan of Middelburg, The Netherlands;

Coronal Holes: 28 Dec 10 <table width="100%" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td></td></tr></tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td>

</td></tr></tbody></table>A solar wind stream flowing from the indicated coronal hole should reach Earth on Jan. 1st or 2nd--the first solar wind stream of the New Year. Credit: SDO/AIA.

พายุสุริยะจาก corona hole - จะมาถึงโลกวันที่ 1-2 มกราคม เป็นลูกแรกของปีใหม่นี้





จำนวนจุดดับของพระอาทิตย์ 9 จุด และชนิดของคลื่นแม่เหล็ก คือ Beta-Gamma

Rob Stammes

Image taken: <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td class="columnContentText" width="78%">Dec. 28, 2010</td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td class="columnTitlesText" width="78%">Location:</td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td class="columnContentText" width="78%">Laukvik Lofoten Norway.</td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td class="columnTitlesText" width="78%">Details:</td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td class="columnContentText" width="78%">Extra information for your Geo storm watch. Darknes was coming around 15.00 local time together with swinging instrument,and so early on the day there is northernlight.</td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table>

 

บันทึกเหตุการณ์วันที่ 28 ธันวาคม 2010 (ต่อ)

[FONT=Arial, Helvetica, sans-serif] SUBSIDING STORM: [/FONT] The geomagnetic storm of Dec. 28th is subsiding. The G1-class disturbance began when the interplanetary magnetic field (IMF) tipped south, opening a crack in Earth's magnetosphere and allowing solar wind to enter. Cameras onboard US Dept. of Defense meteorological satellites recorded bright bands of aurora borealis circling the polar regions north of Scandinavia:

​

Paul McCrone processed the data at the US Navy's Fleet Numerical Meteorology and Oceanography Center in Monterey, CA. "These images use both nighttime visual and infrared data from the DMSP satellites F17 and F18," he says. DMSP satellites are outfitted with low-light cameras capable of recording clouds, lightning, city lights and auroras after nightfall. Note in the image, above, how the brightest bands of aurora borealis rival the urban lights of some northern European cities. "It was a dramatic display," observes McCrone.


Paul McCrone
<table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td class="columnTitlesText" width="78%">Image taken:</td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td class="columnContentText" width="78%">Dec. 28, 2010</td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td class="columnTitlesText" width="78%">Location:</td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td class="columnContentText" width="78%">Imagery was processed at the Fleet Numerical Meteorology and Oceanography Center, Monterey, CA </td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td class="columnTitlesText" width="78%">Details:</td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td class="columnContentText" width="78%">These dramatic images from the US Defense Meteorological Satellite Program (DMSP) show Aurorae over the polar regions north of Scandanavia. These images use both nighttime visual and infrared imagery from the DMSP satellites F17 & F18 on Dec. 28 , 2010.</td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table> <table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table><table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table><table width="100%" border="0" cellpadding="0" cellspacing="0"> <tbody><tr> <td></td> </tr> </tbody></table>

 

บันทึกเหตุการณ์วันที่ 28 ธันวาคม 2010 (ต่อ)

 

บันทึกเหตุการณ์วันที่ 28 ธันวาคม 2010 (ต่อ)

 

บันทึกเหตุการณ์วันที่ 28 ธันวาคม 2010 (ต่อ)

Cracks in Earth's Magnetic Shield

Immense cracks in our planet's magnetic field can remain open for hours, allowing the solar wind to gush through and power stormy space weather.​

​

Listen to this story via streaming audio, a downloadable file, or get help.


Dec. 3, 2003:Â Earth is surrounded by a magnetic force field--a bubble in space called "the magnetosphere" tens of thousands of miles wide. Although many people don't know it exists, the magnetosphere is familiar. It's a far flung part of the same planetary magnetic field that deflects compass needles here on Earth's surface. And it's important. The magnetosphere acts as a shield that protects us from solar storms.



According to new observations, however, from NASA's IMAGE spacecraft and the joint NASA/European Space Agency Cluster satellites, immense cracks sometimes develop in Earth's magnetosphere and remain open for hours. This allows the solar wind to gush through and power stormy space weather.

​

Above: An artist's rendition of NASA's IMAGE satellite flying through a 'crack' in Earth's magnetic field. [more]


"We've discovered that our magnetic shield is drafty, like a

house with a window stuck open during a storm," says Harald Frey of the University of California, Berkeley, lead author of a paper on this research published Dec. 4 in Nature. "The house deflects most of the storm, but the couch is ruined. Similarly, our magnetic shield takes the brunt of space storms, but some energy slips through its cracks, sometimes enough to cause problems with satellites, radio communication, and power systems."
<table width="130" align="RIGHT" border="0" cellpadding="3" cellspacing="0"><tbody><tr><td width="100%"><table width="115" align="center" border="1" cellpadding="5" cellspacing="0"><tbody><tr><td><center>
Sign up for EXPRESS SCIENCE NEWS delivery</center></td></tr></tbody></table></td></tr></tbody></table>
"The new knowledge that the cracks are open for long periods can be incorporated into our space weather forecasting computer models to more accurately predict how our space weather is influenced by violent events on the Sun," adds Tai Phan, also of UC Berkeley, co-author of the Nature paper.
The solar wind is a fast-moving stream of electrically charged particles (electrons and ions) blown constantly from the Sun. The wind can get gusty during violent solar events, like coronal mass ejections (CMEs), which can shoot a billion tons of electrified gas into space at millions of miles per hour.


Earth's magnetosphere generally does a good job of deflecting the particles and snarled magnetic fields carried by CMEs. Even so, space storms and their vivid effects, like auroras which light up the sky over the polar regions with more than a hundred million watts of power, have long indicated that the shield was not impenetrable.





In 1961, Jim Dungey of the Imperial College, United Kingdom, predicted that cracks might form in the magnetic shield when the solar wind contained a magnetic field that was oriented in the opposite direction to a portion of the Earth's field. In these regions, the two magnetic fields would interconnect through a process known as "magnetic reconnection," forming a crack in the shield through which the electrically charged particles of the solar wind could flow.

Left: An artist's rendition of magnetic reconnection. The amber-brown lines denote lines of magnetic force. The bright spot is where oppositely-directed fields are making contact and "reconnecting."


In 1979, Goetz Paschmann of the Max Planck Institute for Extraterrestrial Physics in Germany detected the cracks using the International Sun Earth Explorer (ISEE) spacecraft. However, since this spacecraft only briefly passed through the cracks during its orbit, it was unknown if the cracks were temporary features or if they were stable for long periods.
In the new observations, the Imager for Magnetopause to Aurora Global Exploration (IMAGE) satellite revealed an area almost the size of California in the arctic upper atmosphere where a 75-megawatt "proton aurora" flared for hours. A proton aurora is a form of Northern Lights caused by heavy solar ions striking Earth's upper atmosphere, causing it to emit ultraviolet light--invisible to the human eye but detectable by the Far Ultraviolet Imager on IMAGE. While this aurora was being recorded by IMAGE, the 4-satellite Cluster constellation flew far above IMAGE, directly through the crack, and detected solar wind ions streaming through it.
Below: An artist's rendition of the four Cluster satellites near a stream of solar ions pouring in through a crack in the magnetosphere. [more]


This stream of solar wind ions bombarded our atmosphere in precisely the same region where IMAGE saw the proton aurora. The fact that IMAGE was able to view the proton aurora for more than 9 hours implies that the crack remained continuously open. Researchers estimate that the crack was twice the size of Earth at the boundary of our magnetic shield--about 38,000 miles (60,000 km) above the planet's surface. Since the magnetic field converges as it enters the Earth in the polar regions, the crack narrowed to about the size of California down near the upper atmosphere.


Fortunately, these cracks don't expose Earth's surface to the solar wind. Our atmosphere protects us, even when our magnetic field doesn't. The effects of solar storms are felt mainly in the high upper atmosphere and the region of space around Earth where satellites orbit.


Stay tuned later this week for a follow-up story from Science@NASA about how magnetic cracks have lately sparked beautiful auroras--a phenomenon of the upper atmosphere--in some unexpected places.

​

 

<table border="1" cellpadding="10" cellspacing="0"><tbody><tr><td width="505" background="graphics/solarback2.jpg">

Prepared jointly by the U.S. Dept. of Commerce, NOAA,
Space Weather Prediction Center and the U.S. Air Force.
Updated 2011 Jan 22 2200 UTC

Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 022 Issued at 2200Z on 22 Jan 2011

IA. Analysis of Solar Active Regions and Activity from 21/2100Z
to 22/2100Z: Solar activity was low. Region 1149 (N17W19) has grown
in area and produced a C2 flare at 22/0828Z. Region 1147 (N24W22)
was quiet and stable.

IB. Solar Activity Forecast: Solar activity is expected to be low
with a slight chance for an isolated M-class flare from Region 1149.

IIA. Geophysical Activity Summary 21/2100Z to 22/2100Z:
The geomagnetic field was quiet.

IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet for the next three days (23 - 25 January).

III. Event Probabilities 23 Jan-25 Jan
Class M 10/10/10
Class X 01/01/01
Proton 01/01/01
PCAF green

</pre></td></tr></tbody></table>

 

ข้อมูลแน่นปึ๊กๆ Falkman สู้ๆ ^^

 

ที่อินโด ชาวนาเจอ crop circle เมื่อวันอาทิตย์ที่ 22 มกราคม 2011 เวลา 6.00 a.m.



UFO trace?: A large circle and geometric pattern were created by a UFO have been found in a rice field in Krasakan hamlet in Sleman, Yogyakarta, local residents say.

วงกลมใหญ่ และ รูปทรงเลขาคณิต ถูกสร้างขึ้นโดย UFO ถูำกพบที่นาข้าวใน หมูบ้านเล็กๆ ชื่อ Krasakan ใน Sleman, Yogyakarta อินโดนีเซีย

Air Force to get bird’s-eye view of ‘UFO’ trails

Indonesian Air Force chief Marshall Imam Sufaat on Monday instructed his staff to use a helicopter to take aerial photographs of crop circles discovered on Sunday in Krasakan hamlet, Sleman, with residents alleging them to be traces of a UFO.

“If we examine the photographs, we will possibility see if the patterns were in fact created with powers beyond human knowledge,” Imam said as quoted by tempointeraktif.com, on the sidelines of the Air Force commander meeting in Yogyakarta.

Imam, however, declined to comment further on the geometric pattern.

The crop circles are in a paddy field and resemble a geometric artwork, while the other parts of the field remain untouched.

The patterns were first reported by a farmer, Tukiman, on Sunday at 6 a.m.


The pattern has already drawn hordes of locals and people from outside Yogyakarta, causing traffic jams in the vicinity.








วันจันทร์นี้ ผู้บัญชาการกองทัพอากาศอินโด Marshall Iman Sufaat ได้บอกผู้ใต้บังคับบัญชาให้ใช้ฮอลิคอปเตอร์ ถ่ายภาพทางอากาศของ crop circle ที่ถูกค้นพบในวันอาทิตย์ (22 มกราคม 2011) ในหมู่บ้านเล็กๆ ชื่อ Krasakan, ที่ Sleman กับชาวบ้านกล่าวหาว่าพวกเค้าทำร่อยรอยของ ufo

"ถ้าพวกเราลองทดสอบรูป เราจะเห็นความน่าจะเป็นที่รูปแบบจริงๆ ถูกสร้างมาเหนือความรู้ของมนุษย์" Iman บอกไว้ใน tempointeaktif.com ของที่ประชุมบย่อยของผู้บัญชาการกองทัพอากาศใน Yogyakarta

Iman อย่างไรก็ดีเค้าได้ปฏิเสธที่จะแสดงความคิดเห็นเพิ่มเติมเกี่ยวกับรูปแบบทางเรขาคณิต

Crop circles ยังอยู่ในนาข้าวและคล้ายกับรูปทรงเลขาคณิต ขณะที่ส่วนอื่นๆ ของนายังไม่ถูกแตะต้อง

รูปแบบถูกรายงานครั้งแรกโดยชาวนา, Tukiman ในวันอาทิตย์ที่ 6:00 โมงเช้า

ผู้คนจากภายนอกของ Yogyakarta ได้เข้าไปดู crop circle นี้ และทำให้เกิดรถติดมากบริเวณใกล้เคียง