Penguins are just about the favorite animal, and these are in the dining room.
Wednesday, December 24, 2008
Christmas in Antarctica
In Antarctica Christmas comes a day earlier than in the US. In the lower left of this pictures are carolers. The background is frozen sea ice.
Monday, December 15, 2008
Science Camp
One of the extremely cool things we were hoping to do! get close to a science team, and go out with them. This is Pat's ride out to Heald Island, in the Koettlitz glacier to help launch an under-ice rover camera.
The passengers had to wear the same sharp helmets as the pilots.
The rover is launched through a simple, small, hand-drilled hole. Other rovers being tested down here need huge support equipment, and an eight foot wide hole.
Most of the ice we are working in is pure crystalline blue, but some parts of it have sponge-like formations of air bubbles. These are about a foot down into the ice. You are looking at an area two feet wide.
The equipment is being assembled and tested. The rover is the small cylinder with holes all over it. Pat machined the holes to reduce its weight, and help to make it neutral bouyancy. He also designed and built the cradle it sets on for testing.
Launching the rover.
An edge of the Koettlitz glacier, and beyond it, the mountains forming the Antarctic Dry Valleys.
Some of hundreds of blue melt pools, now frozen, within a rift in the glacier. Mt Discovery beyond, about 14 miles away.
Looking across the quarter-mile wide rift, and the melt pools to the camp tent.
The ride home is landing.
The passengers had to wear the same sharp helmets as the pilots.
The rover is launched through a simple, small, hand-drilled hole. Other rovers being tested down here need huge support equipment, and an eight foot wide hole.
Most of the ice we are working in is pure crystalline blue, but some parts of it have sponge-like formations of air bubbles. These are about a foot down into the ice. You are looking at an area two feet wide.
The equipment is being assembled and tested. The rover is the small cylinder with holes all over it. Pat machined the holes to reduce its weight, and help to make it neutral bouyancy. He also designed and built the cradle it sets on for testing.
Launching the rover.
An edge of the Koettlitz glacier, and beyond it, the mountains forming the Antarctic Dry Valleys.
Some of hundreds of blue melt pools, now frozen, within a rift in the glacier. Mt Discovery beyond, about 14 miles away.
Looking across the quarter-mile wide rift, and the melt pools to the camp tent.
The ride home is landing.
Saturday, December 13, 2008
Ice Dive
We have become acquainted with a dive team that looks at what's in the ocean here under the ice. The have two dive huts off the shore on the ice here.
Inside the hut on the left is the hole for the divers to descend. Inside the hut on the right is the hole where they lower the self-propelled camera that is steered by a person who stays above. They can see on a screen in the hut what the camera sees below.
Here's the hole that the divers use. Looks chilly, doesn't it. The ice here is 20 feet thick. The water below it is 28 degrees.
These divers are Stacy, the head of the team, and Francois.
Stacy is putting on her flippers.
They get ready to descend.
Holly is a "dive tender," a volunteer who helps the diver get dressed.
Stacy jumps into the hole.
From the other hut we can look at what the camera is seeing. The divers say there is plenty of life down there. They like diving here because the water is very clear and there's no algae. The box in the picture is a wire frame on the front of the camera--a crash bar so it doesn't get hurt when it hits bottom. The camera is steered by a person above the ice. Carol got to "drive" it. It's like playing a video game.
Friday, December 5, 2008
Stunning Ice Formations
This week Carol got to go on a special trip to the New Zealand base here to see special ice formations made by layers of sea ice pushing against each other.
The result is that huge chunks of ice get pushed up. You can see how big they care compared to people. We're standing on the ocean here. It's many, many feet frozen beneath us.
The result is that huge chunks of ice get pushed up. You can see how big they care compared to people. We're standing on the ocean here. It's many, many feet frozen beneath us.
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