"Night Shining Clouds" over Europe


	"Night Shining Clouds" over Europe

invictus

6-7-2007 2:21 PM

1021 views

tags:

atmospheric sciences, clouds, nlc, science

2 Comments |

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6-8-2007 3:46 PM

kmcolo

NLCs are not that much of a mystery. They are due to increased water vapor in the stratosphere. This is entirely due to the increase in atmospheric methane which is transported to the stratosphere where it then gets broken down into CO2 and water.

6-8-2007 4:08 PM

thisnamecantbetaken

Or HAARP maybe? You never know...

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/45524b12-3cb8-4450-a9bb-9772aa13bf9d/E71469F8-2370-406D-9A20-57B251F0580A/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://spaceweather.com/" href="http://spaceweather.com/" style="font-size: 11px;">spaceweather.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://spaceweather.com/"><P><SPAN class="storyRedBoldText">NLC ATTACK:</SPAN> Last night, a 
              wide expanse of electric-blue <A href="http://science.nasa.gov/headlines/y2003/19feb_nlc.htm">noctilucent 
              clouds</A> (NLCs) appeared over Europe. "It was a beautiful 
              display," says Martin McKenna of Maghera, N.Ireland. "Wonderful 
              twisting bands and waves were begging for attention." <A href="http://spaceweather.com/mailto:pevans@hotmail.co.uk">Paul 
              Evans</A> of Larne, N. Ireland, snapped this picture:</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://spaceweather.com/"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/spaceweather.com/img/F820B1C0-6C50-4DBD-806A-DA9A03191298" alt="" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://spaceweather.com/"><P>Noctilucent clouds are a mystery. They were first reported in the 
              19th century after the eruption of super-volcano Krakatoa. In those 
              days the clouds were confined mainly to high latitudes, but they 
              have intensified and spread with sightings in recent years as far 
              south as Colorado and Utah. What causes NLCs? A NASA spacecraft 
              named <A href="http://aim.hamptonu.edu/">AIM</A> is in orbit right 
              now on a mission to find out.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://spaceweather.com/"><P>One thing is known: Summer is the season for NLCs. Sky watchers 
              in Europe have seen hints of NLC activity in recent weeks, but "this 
              is the finest display so far," says Evans. The cloud was approximately 
              <A href="http://spaceweather.com/nlcs/images2007/07jun07/Evans2.jpg">25<SUP>o</SUP> high 
              x 100<SUP>o</SUP> wide</A>." Consider it official: NLC season 
              has begun.</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/E71469F8-2370-406D-9A20-57B251F0580A/blog/" title="blog or email this clip"><img src="http://content8.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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