Nacreous Clouds at sunset
The frangipanni are nearly finished
On the edge
Callistemon and cobweb
Meet Brigette
Reflecting Galahs
The ribbon
Before the races
And they're racing!
27:100 strangers - Kerry
28:100 strangers - Robyn
Renault 4CVs in Forbes
Blue reflections
Waiting for the rain
Just red (well, almost)
Renault classics
Astronomical contrast
The Alpine
Where Ben Hall fell
When "snail mail" ruled
Pooh's Corner
Meg
Along the road
Just for fun
Protea
Looking up
The visiting King
Derelict steam
Dahlias
Rare sunrise
Quiet autumn day
Taiwan Lily
Cleaning up
Down the valley
The meeting
"Just Joey" rose
'The Flat'
Captain's Flat
Happy Lunar New Year
Entering Captains Flat
Rail weigh station
The old mine
A little abstract
Rolling in
More letterboxes #2
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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
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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
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