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The 8th International Ice Drill Symposium

30 September 2019 to 3 October 2019
The Royal Danish Academy of Sciences and Letters
Europe/Copenhagen timezone

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Session

Session 1

30 Sept 2019, 09:00
The Royal Danish Academy of Sciences and Letters

The Royal Danish Academy of Sciences and Letters

The Royal Danish Academy of Sciences and Letters H.C. Andersens Boulevard 35 DK-1553 Copenhagen V Denmark

Description

Chairs:
Kristina Slawny and Steffen Bo Hansen

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  1. 92. Welcome
    Mrs Dorthe Dahl-Jensen (co-chair), Mr Steffen Bo Hansen (Co-chair)
    30/09/2019, 09:00
    Oral

    Welcome to the 8th International Ice Drill Symposium

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  2. 57. The BEAMISH hot water drill
    Mr Paul Anker (British Antarctic Survey)
    30/09/2019, 09:20
    Oral

    During the 2018-19 Antarctic field season, the British Antarctic Survey (BAS) BEAMISH project drilled three holes through the Rutford Ice Stream, West Antarctica, accessing and instrumenting its bed through 2152m of ice, the deepest hot water drilled access holes yet created. This was the culmination of almost 20 years of preparation and planning and following on from unsuccessful drilling...

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  3. 60. Deep subglacial access: an assessment of past hot water drilling failures and recent successes
    Keith Makinson (British Antarctic Survey)
    30/09/2019, 09:40
    Oral

    Following the failed 2012 attempt to access Subglacial Lake Ellsworth in West Antarctica, using a specially designed hot water drill, a programme review was undertaken. An international board of experts assessed the reasons for the failure, and made recommendations on the modifications necessary to facilitate successful deep (>2 km) subglacial access using the technique of hot water drilling....

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  4. 86. Greenland deep boreholes inform on sliding and deformation of the basal ice
    Prof. Dorthe Dahl-Jensen (University of Copenhagen)
    30/09/2019, 10:40
    Oral

    Repeated measurements of the deformation of the deep boreholes on the Greenland ice sheet informs on the basal sliding, near basal deformation and in general on the horizontal velocity through the ice. Results of the logging of the boreholes at Dye3, GRIP, NGRIP, NEEM and Camp Century through the last 40 years by the Danish Ice and Climate group will be presented and discussed. The results on...

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  5. 17. Optimization of Drill Head Structure and Drilling Parameters of Hot-Water Ice-Coring Drill
    Prof. Rusheng Wang (Polar Research Center at Jilin University, China)
    30/09/2019, 11:00
    Oral

    How to acquire good quality of ice cores is becoming an increasingly key influence factor due to abundant information of climatic variation in intact ice cores. Compared with the conventional ice coring drill such as armored cable electro-mechanical drill, hot-water ice-coring drill has its unique advantages: drilling rapidly and environment friendly. The hot-water ice-coring drill is used...

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  6. 59. subglacior drilling probe : lesson learn
    Mr olivier alemany (IGE - CNRS)
    30/09/2019, 11:20
    Oral

    After the devlopment of the SUBGLACIOR drilling probe, we get the oportunity to try this tool a few times close to the Antarctic Dome C station. We will present here the reasults of these three testing seasons.

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  7. 48. Sub-glacial Drilling at Pirrit Hills, Antarctica
    Mr Tanner Kuhl (University of Wisconsin-Madison)
    30/09/2019, 11:40
    Oral

    The Agile Sub-Ice Geological (ASIG) Drill system was first used at Pirrit Hills, Antarctica during the 2016-2017 field season, when IDDO (Ice Drilling Design & Operations, now IDP) retrieved 8 meters of granite core from under 150 meters of ice. This is the first time that a rock core more than a meter long has been retrieved from beneath glacial ice. A previous borehole was abandoned due to...

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