RADIX: a minimal-resources rapid-access drilling system

Schwander, J.; Marending, S.; Stocker, T.; Fischer, H. (2014). RADIX: a minimal-resources rapid-access drilling system. Annals of glaciology, 55(68), pp. 34-38. International Glaciological Society 10.3189/2014AoG68A015

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Determining the expected age at a potential ice-core drilling site on a polar ice sheet generally depends on a combination of information from remote-sensing methods, estimates of current accumulation and modelling. This poses irreducible uncertainties in retrieving an undisturbed ice core of the desired age. Although recently perfected radar techniques will improve the picture of the ice sheet below future drilling sites, rapid prospective drillings could further increase the success of deep drilling projects. Here we design and explore a drilling system for a minimum-size rapid-access hole. The advantages of a small hole are the low demand for drilling fluid, low overall weight of the equipment, fast installing and de-installing and low costs. We show that, in theory, drilling of a 20mm hole to a depth of 3000m is possible in ~4 days. First concepts have been realized and verified in the field. Both the drill cuttings and the hole itself can be used to characterize the properties of the ice sheet and its potential to provide a trustworthy palaeo-record. A candidate drilling site could be explored in ~2 weeks, which would enable the characterization of several sites in one summer season.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Physics Institute > Climate and Environmental Physics
10 Strategic Research Centers > Oeschger Centre for Climate Change Research (OCCR)

UniBE Contributor:

Schwander, Jakob; Marending, Samuel; Stocker, Thomas and Fischer, Hubertus

Subjects:

500 Science > 530 Physics

ISSN:

0260-3055

Publisher:

International Glaciological Society

Language:

English

Submitter:

Doris Rätz

Date Deposited:

09 Jan 2015 09:38

Last Modified:

01 Jul 2015 02:30

Publisher DOI:

10.3189/2014AoG68A015

BORIS DOI:

10.7892/boris.61483

URI:

https://boris.unibe.ch/id/eprint/61483

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