Rare noctilucent clouds seen over Armagh

Jun 24, 2014
An image of the noctilucent clouds observed on the night of 19th/20th June over the Mall in Armagh, recorded by Astronomer John Butler

Rare noctilucent or "night shining" clouds were observed over Armagh on the night of 19th/20th June. These silvery, highly structured clouds take many forms, ranging from delicate feather structures to streamers, ripples and waves, and are only seen occasionally, always after dark, during the summer months May to August. Scientists believe that they are caused by sunlight reflecting off tiny ice crystals in the mesosphere, a region of the Earth's atmosphere lying high above the stratosphere, at a height of around 80 kilometres.

Noctilucent are a relatively recent atmospheric phenomenon. They were first reported in 1885, though there is an earlier mention of a similar phenomenon in a report by the Armagh Observatory's third director, The Revd Thomas Romney Robinson, in early May 1850. His handwritten note in the Observatory's meteorological archives for that month records his observation of "strange luminous clouds in the NW, not auroral".

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Noctilucent clouds, morning of 20th June 2014

There is also a suggestion that the frequency of has increased in recent years and may be linked to and possibly also to the incidence of meteoroids in the Earth's upper atmosphere. Meteoroids can deposit dust particles and associated meteoric "smoke" in the mesosphere, which can act as condensation nuclei for the observed tiny noctilucent cloud ice crystals.

Credit: Paul Evans

Extract of Romney Robinson’s report of a similar phenomenon in the Observatory’s meteorological records for 1st and 4th May 1850.


Explore further: First assessment of noctilucent cloud variability at midlatitudes

More information: "Possible Observations of Noctilucent Clouds" by Thomas Romney Robinson is available online: climate.arm.ac.uk/publications/noct-paper-rev.pdf

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fulely
1 / 5 (1) Jun 25, 2014
Those clouds are from chemtrails. When are you going to report on the global spraying programs. . This is absolutely horrible for human consumption. Aluminum oxide causes Alzheimer disease.
Doiea
Jun 25, 2014
This comment has been removed by a moderator.
runrig
5 / 5 (3) Jun 25, 2014
Those clouds are from chemtrails. When are you going to report on the global spraying programs. . This is absolutely horrible for human consumption. Aluminum oxide causes Alzheimer disease.


Oh yeah...
Aircraft fly in the Mesosphere do they? at 50 miles high?

Want to go into the conspiracy that keeps the fleet of aircraft that can do this secret?
FFS

http://en.wikiped...nt_cloud
antigoracle
1 / 5 (2) Jul 07, 2014
We are headed for another little ice age people. The AGW Cult are yet to devise a lie to blame this on CO2.