Blizzard aftermath #2
Blizzard aftermath
Getting them out
Merry 66 Xmas
Digging out #2
Digging out #1
Frosty beard
Trendy skier and Porsche
Icy abstract
Final stop for the main tractor trains
Nacreous Clouds
Nacreous Clouds at sunset
Vehicles at Mawson
Dog teams on the sea ice
Snowtrac near Mt Henderson
View from the office window
Aurora australis over Mawson
Aurora Australis to the SE
Aurora over Mawson Station
Daily water run
Skiing at Fischer Nunatak
To Rumdoodle by VW
Reflective hub cap
Sea ice sunset
Vincennes Bay reflections
One of the first icebergs
From one extreme to another
Don't dip your wingtip!
Macquarie Island 1968: WF2 radar dish
Out in the Southern Ocean
Location
See also...
+9999 photos no limits, no restrictions, no conditions
+9999 photos no limits, no restrictions, no conditions
Keywords
Authorizations, license
-
Visible by: Everyone -
All rights reserved
- Photo replaced on 22 Mar 2015
-
686 visits
Nacreous Clouds
From an old 1966 slide and from a set moved from the 'other' site. We were knocked over by those clouds behind the meteorological office. They are Nacreous Clouds, also known as "Mother of Pearl" clouds because of their colours or, more currently, as "Polar Stratospheric Clouds". They are made of ice crystals (which give their colour) and are about 20,000 metres high with temperatures dropping to about -80 C. They had always been considered quite rare and I believe our sighting was one of the first confirmed in Antarctica: there have been numerous sightings since.. Ozone depletion caused by chlorofluorocarbon gases has caused the polar stratosphere to become colder in spring (ozone keeps it warmer, so less ozone ie "the ozone hole" means lower temperatures) - yes, this is relevant to climate change. View on black. And HFF!
Don Sutherland, Polyrus, , beverley have particularly liked this photo
- Keyboard shortcuts:
Jump to top
RSS feed- Latest comments - Subscribe to the comment feeds of this photo
- ipernity © 2007-2024
- Help & Contact
|
Club news
|
About ipernity
|
History |
ipernity Club & Prices |
Guide of good conduct
Donate | Group guidelines | Privacy policy | Terms of use | Statutes | In memoria -
Facebook
Twitter
when we saw snow, ice and hail all at once with some sunlight ... I think it was perhaps
a similar thing ... rare to see here .... roll on spring ;-) or perhaps a spring roll .. they
are quiet tasty ;-) have a good week George ... oOo
tiabunna club has replied to beverleytiabunna club has replied to Jeantiabunna club has replied to PolyrusADMIRED in 4U
tiabunna club has replied to Don Sutherland clubSign-in to write a comment.