quest Wrote: (06-28-2012 03:01 AM)
Im sorry, Im gettin Old.
I meant "Cosmic Rays" which are particles, that the Heliosphere does shield us from to varying degrees. Not "Gamma Rays" which it probly doesnt help much for.
This will probly be usual with me. Im basically right, but I forget stuff, cant spell, and mix up Gamma from Cosmic and Junk. Carefull Barefull!
The Harbingers of Change Can Now Be Seen All Around the World! Mysterious Noctilucent Clouds Brighten Up Night Skies
International Business Times, 11 Jul 2011
The season for spotting Noctilucent Clouds or the "night-shining" clouds has begun, NASA said in a statement in early July.
Noctilucent Clouds are composed of tiny ice crystals 40 to 100 nanometers wide, which is just the right size to scatter blue wavelengths of sunlight, a NASA scientist explained.
According to NASA, the best time and location to search for these breathtakingly beautiful phenomenon would be between mid-May and the end of August in the northern hemisphere. However, with no explanation yet found, these glowing, mystical clouds have been seen even as far south as Utah and Oregon and Denver, Colorado in the recent years.
Comment: Let us suggest a reason for why instances of noctilucent clouds are increasing and intensifying.
What we suspect has been happening, based on our research thus far, is that the upper atmosphere is cooling because it is being loaded with comet dust, which shows up in the form of noctilucent clouds and other upper atmospheric formations.
Magnificent and mesmerizing noctilucent clouds (also called polar mesospheric clouds), were once considered to be rare. But now they are puzzling scientists with their recent dramatic changes. Apparently, the clouds are growing brighter, are seen more frequently, are visible at ever lower latitudes and are now appearing even during the day. If scientists were allowed to conduct honest interdisciplinary research, such changes wouldn't be a mystery.
They would be able to figure out that comet dust is electrically-charged which is causing the earth's rotation to slow marginally. The slowing of the rotation is reducing the magnetic field, opening earth to more dangerous cosmic radiation and stimulating more volcanism. The volcanism under the sea is heating the sea water which is heating the lower atmosphere and loading it with moisture.
The moisture hits the cooler upper atmosphere and contributes to a deadly mix that inevitably leads to an Ice Age, preceded for a short period by a rapid increase of greenhouse gases and "hot pockets" in the lower atmosphere, heavy rains, hail, snow, and floods.
Noctilucent Clouds were first observed in 19th century but their appearance has increased over time and are seasonal, appearing most often in late spring and summer every year.
NASA's AIM (Aeronomy of Ice in the Mesosphere) satellite, which was launched in 2007, continues to study the clouds, while scientists strive to know if noctilucent clouds signal climate change.
"They were a high-latitude phenomenon, but in recent years, AIM has spotted the clouds appearing ever lower in latitudes, but just why is not yet known," NASA said.
Noctilucent Clouds first appeared in the nineteenth century, the era of Industrial Revolution; they are spreading in the recent years, which has puzzled scientists to the possible connection of the clouds with weather and climate, it added... Really nice pics at link: http://www.sott.net/articles/show/231548...ight-Skies
Cosmic rays before seven, clouds by eleven
Nigel Calder, New Scientist, October 10, 2006
For about a decade now, cosmic rays have been thought to affect the formation of clouds, but no one had come up with any evidence for an exact mechanism. Now, a Danish experiment has shown that subatomic debris created when these high-energy particles collide with the atmosphere could be behind some of our cloud cover.
Henrik Svensmark of the Danish National Space Center in Copenhangen first noticed a connection between cosmic-ray intensity and cloudiness in the mid-1990s. He found that when the sun's activity was at its lowest, during which time about 25 per cent more cosmic rays reach Earth, the planet was 3 per cent cloudier than during solar maxima. The link was greeted with scepticism, but evidence continued to mount (New Scientist, 28 January, p 17)... http://www.sott.net/articles/show/120755...-by-eleven
Do Clouds Come From Outer Space?
Phil Berardelli, ScienceNow Daily News, 05 Aug 2009
Most of Earth's clouds get their start in deep space. That's the surprising conclusion from a team of researchers who argue that interstellar cosmic rays collide with water molecules in our atmosphere to form overcast skies.
As common as clouds are on Earth, the processes that produce them are not well understood. Scientists think particles of dust or pollen can serve as nuclei for water droplets, which in turn gather by the trillions into clouds. That would help explain how clouds form over urban areas: Fine particles called aerosols are emitted from the exhaust pipes of millions of vehicles and work their way into the atmosphere, where they are thought to attract water molecules. But it doesn't explain how clouds formed in preindustrial society--or how they form today over vast stretches of rainforest and ocean.
That's where cosmic rays come in. The idea goes like this: High-speed cosmic ray particles--protons and neutrons of still-mysterious origins that travel at nearly the speed of light--collide with water molecules in the atmosphere, stripping away electrons from those molecules and converting them into electrically charged ions. The ions then begin attracting other water molecules, which eventually form clouds.
The theory seems to hold water in the lab. In 2006, physicist Henrik Svensmark of the Technical University of Denmark in Copenhagen and colleagues produced aerosols artificially in an atmospheric chamber by bombarding water molecules with a particle beam. "More ions resulted in more aerosols," Svensmark says.
In the new study, Svensmark's team wanted to see if the idea also worked in the real world. The researchers focused on a phenomenon known as a Forbush decrease. Here, a massive storm on the sun's surface flings a superhot fog of particles, called a coronal mass ejection, past Earth, temporarily shielding our planet from cosmic rays. If cosmic rays really do contribute to cloud formation, Svensmark and colleagues hypothesized, then cloud cover should dip during Forbush decreases.
And indeed that's what Svensmark's team found. When the researchers examined cloud data collected by weather satellites over the past 22 years and compared them with 26 Forbush decreases, they discovered that, for the five strongest events, the water-droplet content of Earth's clouds decreased by an average of 7%. It's like bare patches forming in a field, says Svensmark, whose team reports its findings this month in Geophysical Research Letters. The cloud patterns eventually returned to normal, he says, but they took weeks to do so. "We're now convinced that aerosols are affected by the Forbush decrease," Svensmark says... http://www.sott.net/articles/show/191260...ter-Space-