13 June 2010

A grey Sunday

This ice core contains about 500 years of snowfall from about 75,000 years ago
A fresh ice core directly from the drill. This 3.5 m long and 98 mm diameter rod of ice in one piece is truly an aesthetic experience. This ice core contains about 500 years of snowfall in a beautiful layered sequence from about 75,000 years ago.

Sunday is anyway a short day, so if weather should put a halt to work on the surface, it's the best day for it. And weather did.
However, in the trenches work continues. The CFA team operating on a 24 hour
schedule, 2 x 12 hour shifts, used the week-end to switch the night team to day and vice versa. Today was maintenance day on the CFA equipment and tonight they will be at it again.

What we have done today:
1. Drilling and logging.
2. Processed ice cores: 17 bags, from 3610 to 3626.
3. Maintaining CFA system. Measured 0.0 m. CFA depth: 1612.05 m.
4. Tried to groom skiway with beam groomer.
5. Canadian and Japanese pit studies for biological material in snow.

Ad.1: Drillers report:
We made 5 runs today, yielding good core.

Driller's depth 2054.45 meters. Logging depth: 2068.28 m.

Ad.4: Lou tried to go out to groom today; but the snow was so sticky that the groomer left big clomps of snow in its wake, so she stopped.

Weather: Overcast all day with some light snow showers. Temp. -6 °C to -4 °C, 5-15 knots from S and SSW. Visibility: Mostly unrestricted, sometimes down to 1 mile.

FL, J.P. Steffensen


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