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Crazy Clouds or More?
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<blockquote data-quote="Loopi" data-source="post: 56527" data-attributes="member: 3152"><p><span style="font-size: 18px"><strong><span style="color: #008000"><span style="font-size: 9px"><a href="http://blogs.smithsonianmag.com/smartnews/2012/08/ufo-or-crazy-cloud-weird-cloud-atlas-helps-you-decide/" target="_blank"><span style="color: #008000">http://blogs.smithsonianmag.com/smartnews/2012/08/ufo-or-crazy-cloud-weird-cloud-atlas-helps-you-decide/</span></a></span></span></strong></span></p><p></p><p><span style="font-size: 18px"><strong><span style="color: #ffffff">August 28, 2012 12:46 pm</span></strong></span></p><p></p><p><span style="font-size: 15px"><strong><span style="color: #ffffff"><a href="http://blogs.smithsonianmag.com/smartnews/2012/08/ufo-or-crazy-cloud-weird-cloud-atlas-helps-you-decide/" target="_blank"><span style="color: #ffffff"><span style="color: #006791">UFO or Crazy Cloud? ‘Weird Cloud Atlas’ Helps You Decide</span></span></a></span></strong></span></p><p></p><p><span style="color: #ffffff"><a href="http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_mammatus-clouds.jpg" target="_blank"><span style="color: #ffffff"><span style="color: #006791"><img src="http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_mammatus-clouds.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></span></span></a> </span></p><p><span style="color: #ffffff">Mammatus clouds over Saskatchewan. Photo: <a href="http://instagram.com/p/MXH30njgOZ/" target="_blank"><span style="color: #ffffff"><span style="color: #006791">Robinlawless</span></span></a></span></p><p><span style="color: #ffffff">There are way more types of clouds in the world than “big, white, and puffy,” despite what the drawings of nearly every five year old or, let’s face it, adult would suggest. Varying with altitude, moisture content and how the atmosphere is moving around, clouds come in a vast array of unusual shapes and sizes. Some take on undulating forms, like gravity wave clouds, which arise when a stream of wind undulates up and down as it flows through the air, with clouds forming at the peaks of the wave and clearings at the troughs. <a href="http://cloudappreciationsociety.org/" target="_blank"><span style="color: #ffffff"><span style="color: #006791">And that’s just the beginning</span></span></a>. When unusual clouds arise,<a href="http://www.cbc.ca/news/yourcommunity/2012/06/amazing-clouds-grace-skies-over-saskatchewan.html" target="_blank"><span style="color: #ffffff"><span style="color: #006791"> people tend to get pretty excited</span></span></a>.</span></p><p><span style="color: #ffffff"><a href="http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_gravity-waves.jpg" target="_blank"><span style="color: #ffffff"><img src="http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_gravity-waves.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></span></a> </span></p><p><span style="color: #ffffff">These gravity wave clouds were formed when air was diverted up and over a small island. Photo: NASA Earth Observatory</span></p><p><span style="color: #ffffff">In <em><a href="http://www.telegraph.co.uk/science/picture-galleries/9494532/Weird-Cloud-Atlas-a-collection-of-spectacular-cloud-formations.html?frame=2318012" target="_blank"><span style="color: #ffffff"><span style="color: #006791">the Telegraph</span></span></a>, </em>the newspaper compiled a “<a href="http://www.telegraph.co.uk/science/picture-galleries/9494532/Weird-Cloud-Atlas-a-collection-of-spectacular-cloud-formations.html?frame=2318012" target="_blank"><span style="color: #ffffff"><span style="color: #006791">Weird Cloud Atlas</span></span></a>,” showcasing a number of unusual cloud types seen around the world. One cloud type, which kicks off the slideshow and is known as a lenticular cloud, is a favorite of UFO aficionados. In fact, these disk-shaped clouds <a href="http://www.lifeslittlemysteries.com/1703-ufo-china-airport-cloud.html" target="_blank"><span style="color: #ffffff"><span style="color: #006791">have a tendency to be mistaken for extraterrestrial vehicles</span></span></a>.</span></p><p><span style="color: #ffffff">There are a few choice types that didn’t make it on to the list however, such as:</span></p><p><span style="color: #ffffff"><strong>Kelvin Helmholtz clouds</strong>. These unusual wave-shaped clouds are formed when two separate streams of air in the atmosphere are flowing alongside one another at different speeds. The interaction causes turbulence at the interface between the two air packets, leading to the strange structure. This process is explained in more detail <a href="http://cliffmass.blogspot.ca/2010/07/strange-clouds-explained.html" target="_blank"><span style="color: #ffffff"><span style="color: #006791">here</span></span></a>.</span></p><p><span style="color: #ffffff"><a href="http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_KH-clouds.jpg" target="_blank"><span style="color: #ffffff"><img src="http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_KH-clouds.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></span></a> </span></p><p><span style="color: #ffffff">Kelvin-Helmholtz clouds. Photo: <a href="http://www-frd.fsl.noaa.gov/mab/scatcat/" target="_blank"><span style="color: #ffffff"><span style="color: #006791">Brooks Martner / NOAA / SCATCAT</span></span></a></span></p><p><span style="color: #ffffff"><strong>Morning Glory clouds</strong> are a regular occurrence in northeastern Australia, but <a href="http://www.wired.com/wiredscience/2009/08/morninggloryclouds/" target="_blank"><span style="color: #ffffff"><span style="color: #006791">unfortunately scientists aren’t really sure how they arise.</span></span></a></span></p><p><span style="color: #ffffff"><a href="http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_morning-glory-clouds.jpg" target="_blank"><span style="color: #ffffff"><span style="color: #006791"><img src="http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_morning-glory-clouds.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></span></span></a> </span></p><p><span style="color: #ffffff">Morning Glory clouds in Queensland, Australia. Photo: <a href="http://en.wikipedia.org/wiki/File:MorningGloryCloudBurketownFromPlane.jpg" target="_blank"><span style="color: #ffffff"><span style="color: #006791">Mick Petroff</span></span></a></span></p><p><span style="color: #ffffff">And, weird clouds aren’t purely a terrestrial occurrence. Working from photos taken by the <a href="http://www.nasa.gov/mission_pages/mars-pathfinder/" target="_blank"><span style="color: #ffffff"><span style="color: #006791">Mars Pathfinder</span></span></a> rover in 1997, <a href="http://phys.org/news75989971.html" target="_blank"><span style="color: #ffffff"><span style="color: #006791">scientists recently discovered</span></span></a> <strong>Martian high altitude clouds</strong>. Unlike on Earth, these Martian clouds are made from carbon dioxide, not water.</span></p><p><span style="color: #ffffff"><a href="http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_mars-co2-clouds.jpg" target="_blank"><span style="color: #ffffff"><img src="http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_mars-co2-clouds.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></span></a> </span></p><p><span style="color: #ffffff">High altitude carbon dioxide clouds on Mars. Photo: NASA Pathfinder</span></p></blockquote><p></p>
[QUOTE="Loopi, post: 56527, member: 3152"] [SIZE=5][B][COLOR=#008000][SIZE=1][URL='http://blogs.smithsonianmag.com/smartnews/2012/08/ufo-or-crazy-cloud-weird-cloud-atlas-helps-you-decide/'][COLOR=#008000]http://blogs.smithsonianmag.com/smartnews/2012/08/ufo-or-crazy-cloud-weird-cloud-atlas-helps-you-decide/[/COLOR][/URL][/SIZE][/COLOR][/B][/SIZE] [SIZE=5][B][COLOR=#ffffff]August 28, 2012 12:46 pm[/COLOR][/B][/SIZE] [SIZE=4][B][COLOR=#ffffff][URL='http://blogs.smithsonianmag.com/smartnews/2012/08/ufo-or-crazy-cloud-weird-cloud-atlas-helps-you-decide/'][COLOR=#ffffff][COLOR=#006791]UFO or Crazy Cloud? ‘Weird Cloud Atlas’ Helps You Decide[/COLOR][/COLOR][/URL][/COLOR][/B][/SIZE] [COLOR=#ffffff][URL='http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_mammatus-clouds.jpg'][COLOR=#ffffff][COLOR=#006791][IMG]http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_mammatus-clouds.jpg[/IMG][/COLOR][/COLOR][/URL] [/COLOR] [COLOR=#ffffff]Mammatus clouds over Saskatchewan. Photo: [URL='http://instagram.com/p/MXH30njgOZ/'][COLOR=#ffffff][COLOR=#006791]Robinlawless[/COLOR][/COLOR][/URL][/COLOR] [COLOR=#ffffff]There are way more types of clouds in the world than “big, white, and puffy,” despite what the drawings of nearly every five year old or, let’s face it, adult would suggest. Varying with altitude, moisture content and how the atmosphere is moving around, clouds come in a vast array of unusual shapes and sizes. Some take on undulating forms, like gravity wave clouds, which arise when a stream of wind undulates up and down as it flows through the air, with clouds forming at the peaks of the wave and clearings at the troughs. [URL='http://cloudappreciationsociety.org/'][COLOR=#ffffff][COLOR=#006791]And that’s just the beginning[/COLOR][/COLOR][/URL]. When unusual clouds arise,[URL='http://www.cbc.ca/news/yourcommunity/2012/06/amazing-clouds-grace-skies-over-saskatchewan.html'][COLOR=#ffffff][COLOR=#006791] people tend to get pretty excited[/COLOR][/COLOR][/URL].[/COLOR] [COLOR=#ffffff][URL='http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_gravity-waves.jpg'][COLOR=#ffffff][IMG]http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_gravity-waves.jpg[/IMG][/COLOR][/URL] [/COLOR] [COLOR=#ffffff]These gravity wave clouds were formed when air was diverted up and over a small island. Photo: NASA Earth Observatory[/COLOR] [COLOR=#ffffff]In [I][URL='http://www.telegraph.co.uk/science/picture-galleries/9494532/Weird-Cloud-Atlas-a-collection-of-spectacular-cloud-formations.html?frame=2318012'][COLOR=#ffffff][COLOR=#006791]the Telegraph[/COLOR][/COLOR][/URL], [/I]the newspaper compiled a “[URL='http://www.telegraph.co.uk/science/picture-galleries/9494532/Weird-Cloud-Atlas-a-collection-of-spectacular-cloud-formations.html?frame=2318012'][COLOR=#ffffff][COLOR=#006791]Weird Cloud Atlas[/COLOR][/COLOR][/URL],” showcasing a number of unusual cloud types seen around the world. One cloud type, which kicks off the slideshow and is known as a lenticular cloud, is a favorite of UFO aficionados. In fact, these disk-shaped clouds [URL='http://www.lifeslittlemysteries.com/1703-ufo-china-airport-cloud.html'][COLOR=#ffffff][COLOR=#006791]have a tendency to be mistaken for extraterrestrial vehicles[/COLOR][/COLOR][/URL].[/COLOR] [COLOR=#ffffff]There are a few choice types that didn’t make it on to the list however, such as:[/COLOR] [COLOR=#ffffff][B]Kelvin Helmholtz clouds[/B]. These unusual wave-shaped clouds are formed when two separate streams of air in the atmosphere are flowing alongside one another at different speeds. The interaction causes turbulence at the interface between the two air packets, leading to the strange structure. This process is explained in more detail [URL='http://cliffmass.blogspot.ca/2010/07/strange-clouds-explained.html'][COLOR=#ffffff][COLOR=#006791]here[/COLOR][/COLOR][/URL].[/COLOR] [COLOR=#ffffff][URL='http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_KH-clouds.jpg'][COLOR=#ffffff][IMG]http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_KH-clouds.jpg[/IMG][/COLOR][/URL] [/COLOR] [COLOR=#ffffff]Kelvin-Helmholtz clouds. Photo: [URL='http://www-frd.fsl.noaa.gov/mab/scatcat/'][COLOR=#ffffff][COLOR=#006791]Brooks Martner / NOAA / SCATCAT[/COLOR][/COLOR][/URL][/COLOR] [COLOR=#ffffff][B]Morning Glory clouds[/B] are a regular occurrence in northeastern Australia, but [URL='http://www.wired.com/wiredscience/2009/08/morninggloryclouds/'][COLOR=#ffffff][COLOR=#006791]unfortunately scientists aren’t really sure how they arise.[/COLOR][/COLOR][/URL][/COLOR] [COLOR=#ffffff][URL='http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_morning-glory-clouds.jpg'][COLOR=#ffffff][COLOR=#006791][IMG]http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_morning-glory-clouds.jpg[/IMG][/COLOR][/COLOR][/URL] [/COLOR] [COLOR=#ffffff]Morning Glory clouds in Queensland, Australia. Photo: [URL='http://en.wikipedia.org/wiki/File:MorningGloryCloudBurketownFromPlane.jpg'][COLOR=#ffffff][COLOR=#006791]Mick Petroff[/COLOR][/COLOR][/URL][/COLOR] [COLOR=#ffffff]And, weird clouds aren’t purely a terrestrial occurrence. Working from photos taken by the [URL='http://www.nasa.gov/mission_pages/mars-pathfinder/'][COLOR=#ffffff][COLOR=#006791]Mars Pathfinder[/COLOR][/COLOR][/URL] rover in 1997, [URL='http://phys.org/news75989971.html'][COLOR=#ffffff][COLOR=#006791]scientists recently discovered[/COLOR][/COLOR][/URL] [B]Martian high altitude clouds[/B]. Unlike on Earth, these Martian clouds are made from carbon dioxide, not water.[/COLOR] [COLOR=#ffffff][URL='http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_mars-co2-clouds.jpg'][COLOR=#ffffff][IMG]http://blogs.smithsonianmag.com/smartnews/files/2012/08/08_28_2012_mars-co2-clouds.jpg[/IMG][/COLOR][/URL] [/COLOR] [COLOR=#ffffff]High altitude carbon dioxide clouds on Mars. Photo: NASA Pathfinder[/COLOR] [/QUOTE]
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