Monday, May 29, 2006

Sunday, 28. May. Surprises in the core

1130: -5,5 C, 5 m/s from 320 true, 931.2 mb , surface contrast good, horizon good, visibility to the horizon, 3/8 high clouds.

2100: -5.7 C, 11 m/s from 300 true, 931.0 mb, surface contrast poor, visibility 2 km, thin discontinuous cloud cover, snow. The weather is deteriorating. The wind is picking up and the forecast says that the wind will continue tomorrow.

After a really nice Saturday evening we started up slowly Sunday morning. The drilling is underway, but we still need some adjustments of the area where the cores are registered, measured and packed. Sverrir repaired some minor damages to the two skidoos and the Kansas team worked with their data.

The Flade Isblink ice core contains a number of surprises. Until now we have at a depth of 2.6 m met a layer of snow/ice which definitely is marked by having been very wet from meltwater. This layer stops again at 6.8 m. There are indications that it has been quite wet here last year or within the last several years? Inside the refrozen core sections, we see structure, as if some stratigraphy is preserved. The refrozen cores contain lots of large bubbles. We will know more once we determine the annual snow fall.

The coring started at 2.80 m below the floor of the drill tent, which was the surface on 15th May 2006. Thus logging began 5 cm from top in Bag 6. Density of bag 7: 850 kg/m3.

Claude cooked rice with vegetables and salmon for dinner.

We have talked to Copenhagen over the Iridium phone.

3 Comments:

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