Thermal Deep Drilling in Central Greenland (Thermische Tiefbohrung in Zentralgronland)
Drilling into ice represents essentially a different problem than geologic boring. From an engineering standpoint, the main problems involve the viscous deformation of the ice and the refreezing of the melted water, from which drilling rods or cables become jammed unless preventive measures are unde...
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ftdtic:AD0751904 2023-05-15T16:27:09+02:00 Thermal Deep Drilling in Central Greenland (Thermische Tiefbohrung in Zentralgronland) Philberth,Karl COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H 1972-10 text/html http://www.dtic.mil/docs/citations/AD0751904 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0751904 en eng http://www.dtic.mil/docs/citations/AD0751904 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Snow Ice and Permafrost (*GLACIERS DRILLING) (*PROBES ICE) THERMAL PROPERTIES FREEZING MELTING HEATING DEFORMATION GREENLAND WEST GERMANY TRANSLATIONS Text 1972 ftdtic 2016-02-19T02:15:25Z Drilling into ice represents essentially a different problem than geologic boring. From an engineering standpoint, the main problems involve the viscous deformation of the ice and the refreezing of the melted water, from which drilling rods or cables become jammed unless preventive measures are undertaken. In the deep ice drillings, one is interested primarily in the temperature profile. The author developed a thermal deep-drilling probe with which the deepest ice layer on earth (over 4000 cm) can be pierced. Within the scope of the IGGE, two such probes were put into operation for drilling at the Jarl-Joset Expeditionary Station in summer, 1968. (Author) Draft trans. of die Umschau in Wissenschaft und Technik (West Germany) n16 p515-516 1960. Text Greenland Ice permafrost Defense Technical Information Center: DTIC Technical Reports database Greenland |
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Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Snow Ice and Permafrost (*GLACIERS DRILLING) (*PROBES ICE) THERMAL PROPERTIES FREEZING MELTING HEATING DEFORMATION GREENLAND WEST GERMANY TRANSLATIONS |
spellingShingle |
Snow Ice and Permafrost (*GLACIERS DRILLING) (*PROBES ICE) THERMAL PROPERTIES FREEZING MELTING HEATING DEFORMATION GREENLAND WEST GERMANY TRANSLATIONS Philberth,Karl Thermal Deep Drilling in Central Greenland (Thermische Tiefbohrung in Zentralgronland) |
topic_facet |
Snow Ice and Permafrost (*GLACIERS DRILLING) (*PROBES ICE) THERMAL PROPERTIES FREEZING MELTING HEATING DEFORMATION GREENLAND WEST GERMANY TRANSLATIONS |
description |
Drilling into ice represents essentially a different problem than geologic boring. From an engineering standpoint, the main problems involve the viscous deformation of the ice and the refreezing of the melted water, from which drilling rods or cables become jammed unless preventive measures are undertaken. In the deep ice drillings, one is interested primarily in the temperature profile. The author developed a thermal deep-drilling probe with which the deepest ice layer on earth (over 4000 cm) can be pierced. Within the scope of the IGGE, two such probes were put into operation for drilling at the Jarl-Joset Expeditionary Station in summer, 1968. (Author) Draft trans. of die Umschau in Wissenschaft und Technik (West Germany) n16 p515-516 1960. |
author2 |
COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H |
format |
Text |
author |
Philberth,Karl |
author_facet |
Philberth,Karl |
author_sort |
Philberth,Karl |
title |
Thermal Deep Drilling in Central Greenland (Thermische Tiefbohrung in Zentralgronland) |
title_short |
Thermal Deep Drilling in Central Greenland (Thermische Tiefbohrung in Zentralgronland) |
title_full |
Thermal Deep Drilling in Central Greenland (Thermische Tiefbohrung in Zentralgronland) |
title_fullStr |
Thermal Deep Drilling in Central Greenland (Thermische Tiefbohrung in Zentralgronland) |
title_full_unstemmed |
Thermal Deep Drilling in Central Greenland (Thermische Tiefbohrung in Zentralgronland) |
title_sort |
thermal deep drilling in central greenland (thermische tiefbohrung in zentralgronland) |
publishDate |
1972 |
url |
http://www.dtic.mil/docs/citations/AD0751904 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0751904 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice permafrost |
genre_facet |
Greenland Ice permafrost |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0751904 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
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1766016239875915776 |