ourscouseforum.myfreeforum.org Forum Index ourscouseforum.myfreeforum.org
Forum for discussion and debate on Liverpool and the wider community.
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   Join! (free) Join! (free)
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

NOCTILUCENT CLOUDS

 
Post new topic   Reply to topic    ourscouseforum.myfreeforum.org Forum Index -> Hobbies/Pastimes/Days Out/Holidays
View previous topic :: View next topic  
Author Message
Scousemouse



Joined: 19 Oct 2012
Posts: 2112

PostPosted: Mon May 27, 2013 7:31 am    Post subject: NOCTILUCENT CLOUDS  Reply with quote

NOCTILUCENT CLOUD SEASON BEGINS: Over the weekend, sky watchers in northern European countries spotted electric-blue tendrils of light reaching out of the western sky at sunset. This signals the beginning of the 2013 season for noctilucent clouds (NLCs).

Noctilucent clouds are a summertime phenomenon. In the upper atmosphere, 80+ km high at the edge of space itself, tiny ice crystals nucleate around meteoroids and other aerosols; when the crystals catch the rays of the setting s*n, they glow electric blue. Ironically, these highest and coldest of clouds form during the warmest months on the ground.

Noctilucent clouds first appeared in the 19th century after the eruption of super-volcano Krakatoa. At the time, people thoght the clouds were caused by the eruption, but long after Krakatoa's ash settled, the clouds remained. In those early days, NLCs were a polar phenomenon, mainly seen in far-northern places such as Scandinavia or Alaska. In recent years they have intensified and spread with sightings as far south as Utah and Colorado. Could this be a sign of climate change? A NASA spacecraft named "AIM" is in orbit to investigate.
Back to top
View user's profile Send private message
Barbie



Joined: 22 May 2012
Posts: 16184

PostPosted: Mon May 27, 2013 9:44 am    Post subject: Reply with quote

What a fascinating place the world is. The outer space and the inner space. It's all pretty amazing.
Thanks for that SM.
_________________
You can't kid a kidder!!!!!
Back to top
View user's profile Send private message
Scousemouse



Joined: 19 Oct 2012
Posts: 2112

PostPosted: Mon May 27, 2013 12:19 pm    Post subject: Reply with quote

aa

Last edited by Scousemouse on Fri Aug 23, 2013 9:25 pm; edited 1 time in total
Back to top
View user's profile Send private message
Barbie



Joined: 22 May 2012
Posts: 16184

PostPosted: Mon May 27, 2013 12:55 pm    Post subject: Reply with quote

Lovely!  Cool
I love that word too...NOCTILUCENT
_________________
You can't kid a kidder!!!!!
Back to top
View user's profile Send private message
Scousemouse



Joined: 19 Oct 2012
Posts: 2112

PostPosted: Mon May 27, 2013 5:30 pm    Post subject: Reply with quote

Barbie wrote:
Lovely!  Cool
I love that word too...NOCTILUCENT

Its Latin and it meas night shining   or glowing

Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    ourscouseforum.myfreeforum.org Forum Index -> Hobbies/Pastimes/Days Out/Holidays All times are GMT + 1 Hour
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Card File  Gallery  Forum Archive
Powered by phpBB © 2001, 2005 phpBB Group
Create your own free forum | Buy a domain to use with your forum