Talk:Noctilucent cloud

message: It is mentioned in the main article that Manned Spaceflight is a contributing factor to the appearance of NLCs. Can someone please provide a reference for this conjecture? It is my understanding that at 82km altitude the intense UV-radiation from the sun dissociates water molecules very quickly. With half-life times of mere hours, its a little curious how these can be a contributing factor. Albester 18:14, 18 May 2006 (UTC)
thread_title:  Influence of Spaceflight 

message: This is pure nonsense but I believe that noctilucent clouds are physical manifestations of planetary wisdom (composed of frozen mist, illuminating the night, closest to empty space, poorly understood, and able to subsist at altitudes other clouds can't cut it at.  Keep up the good work brothers!
--68.56.0.116 (talk) 14:44, 11 December 2007 (UTC)
thread_title:  Padmasambhava 

message: Does anybody know at which time of day, relative to sunset/sunrise, can noctilucent clouds be seen and on which latitudes? It would be nice to have graph displaying this in the article. --83.131.82.102 (talk) 11:38, 9 March 2008 (UTC)
thread_title:  When & where 

message: I'd like to suggest that the search for polar mesospheric clouds not be automatically redirected to noctilucent clouds. Though the same tenuous ice crystal layer in the mesophere produces both physical phenomena, noctilucent clouds are the phenomena observed from the ground and polar mesospheric clouds are the scattering layer observed by satellite and LIDAR instrumentation. It is a subtle, but important distinction. I created a new article called Polar Mesospheric Clouds last night and would appreciate help writing and editing it.—Preceding unsigned comment added by Rss100001 (talk • contribs) 
:I agree with the new redirects. Good job on the new article, although it needs some reliable sources. -RunningOnBrains(talk page) 19:59, 10 June 2009 (UTC)
replies: text: On second thought, as it seems the consensus is that these are the same phenomenon, why should it not all appear in the same article? -RunningOnBrains(talk page) 20:07, 10 June 2009 (UTC)
thread_title:  Noctilucent Clouds versus Polar Mesospheric Clouds 

message: http://spaceweather.com/archive.php?view=1&day=18&month=06&year=2009
http://www.newscientist.com/article/dn17234-mysterious-nightshining-clouds-may-peak-this-year.html  —Preceding unsigned comment added by 81.132.14.185 (talk) 07:44, 19 June 2009 (UTC)
thread_title: Noctilucent Cloud and Solar Minimum? 

message: Two photos in different sections are near-duplicates. Remove one?
Cognita (talk) 05:54, 30 June 2009 (UTC)
thread_title:  Photos 

message: Hello! This is a note to let the editors of this article know that :File:Helkivad ööpilved Kuresoo kohal.jpg  will be appearing as picture of the day on March 22, 2012. You can view and edit the POTD blurb at Template:POTD/2012-03-22. If this article needs any attention or maintenance, it would be preferable if that could be done before its appearance on the Main Page so Wikipedia doesn't look bad. :) Thanks! ~AH1 (discuss!) 01:48, 22 March 2012 (UTC)
thread_title:  [[:File:Helkivad ööpilved Kuresoo kohal.jpg ]] to appear as POTD soon 

message: A recent article I found on science daily, referencing a NASA report where the investigators/authors believe that 3 things are needed to form NLCs are cold temps, water vapor and space dust. Here is the citation info copied from the sciencedaily page:
NASA/Goddard Space Flight Center. "Appearance of night-shining clouds has increased." ScienceDaily. ScienceDaily, 11 April 2014. <www.sciencedaily.com/releases/2014/04/140411091939.htm>.  Just passing this along. Accidental contributor (talk) 06:10, 7 May 2014 (UTC)
thread_title:  New source 

message: A Wikipedia editor had provided a link to a site by the Australian Government Antarctic Division (http://www.antarctica.gov.au/about-antarctica/environment/atmosphere/noctilucent-clouds).  I removed the link because within the story itself the same comment was only provided as conjecture with no source data to back it up.  To whit, the article stated "It has been alternatively claimed that the appearance of noctilucent clouds is the earliest evidence of anthropogenic climate change." This was the identical text within the Wikipedia entry and with no source links or evidence to back up the claim.  These clouds have been observed since the 19th century, before the time that industrialization could have been claimed to cause anthropogenic global warming.  As was stated above in the talk section, they were not recorded before because up until that time there was no reason to suspect these clouds were different than normal cirrus clouds other than in luminosity.  This does not mean they did not exist prior to 1885, just as we cannot say atoms did not exist prior to the 19th century just because we did not have the means or science to measure or even theorize them.  — Preceding unsigned comment added by Herefordnuthouse (talk • contribs) 15:03, 31 May 2014 (UTC)
replies: text: I provided more substantial citations.--Smkolins (talk) 17:17, 31 May 2014 (UTC)
thread_title:  Links to anthropogenic global warming