The EPICA Dronning Maud Land deep drilling operation
International audience Abstract We report on the EPICA Dronning Maud Land (East Antarctica) deep drilling operation. Starting with the scientific questions that led to the outline of the EPICA project, we introduce the setting of sister drillings at NorthGRIP and EPICA Dome C within the European ice...
Published in: | Annals of Glaciology |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Other Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2014
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Subjects: | |
Online Access: | https://hal.science/hal-03213402 https://hal.science/hal-03213402/document https://hal.science/hal-03213402/file/div-class-title-the-epica-dronning-maud-land-deep-drilling-operation-div.pdf https://doi.org/10.3189/2014AoG68A189 |
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Open Polar |
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Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Wilhelms, Frank Miller, Heinrich Gerasimoff, Michael Drücker, Cord Frenzel, Andreas Fritzsche, Diedrich Grobe, Hannes Hansen, Steffen Bo Hilmarsson, Sverrir Æ. Hoffmann, Georg Hörnby, Kerstin Jaeschke, Andrea Jakobsdóttir, Steinunn Juckschat, Paul Karsten, Achim Karsten, Lorenz Kaufmann, Patrik Karlin, Torbjörn Kohlberg, Eberhard Kleffel, Guido Lambrecht, Anja Lambrecht, Astrid Lawer, Gunther Schärmeli, Ivan Schmitt, Jochen Sheldon, Simon Takata, Morimasa Trenke, Marcus Twarloh, Birthe Valero-Delgado, Fernando Wilhelms-Dick, Dorothee The EPICA Dronning Maud Land deep drilling operation |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience Abstract We report on the EPICA Dronning Maud Land (East Antarctica) deep drilling operation. Starting with the scientific questions that led to the outline of the EPICA project, we introduce the setting of sister drillings at NorthGRIP and EPICA Dome C within the European ice-coring community. The progress of the drilling operation is described within the context of three parallel, deep-drilling operations, the problems that occurred and the solutions we developed. Modified procedures are described, such as the monitoring of penetration rate via cable weight rather than motor torque, and modifications to the system (e.g. closing the openings at the lower end of the outer barrel to reduce the risk of immersing the drill in highly concentrated chip suspension). Parameters of the drilling (e.g. core-break force, cutter pitch, chips balance, liquid level, core production rate and piece number) are discussed. We also review the operational mode, particularly in the context of achieved core length and piece length, which have to be optimized for drilling efficiency and core quality respectively. We conclude with recommendations addressing the design of the chip-collection openings and strictly limiting the cable-load drop with respect to the load at the start of the run. |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) |
format |
Article in Journal/Newspaper |
author |
Wilhelms, Frank Miller, Heinrich Gerasimoff, Michael Drücker, Cord Frenzel, Andreas Fritzsche, Diedrich Grobe, Hannes Hansen, Steffen Bo Hilmarsson, Sverrir Æ. Hoffmann, Georg Hörnby, Kerstin Jaeschke, Andrea Jakobsdóttir, Steinunn Juckschat, Paul Karsten, Achim Karsten, Lorenz Kaufmann, Patrik Karlin, Torbjörn Kohlberg, Eberhard Kleffel, Guido Lambrecht, Anja Lambrecht, Astrid Lawer, Gunther Schärmeli, Ivan Schmitt, Jochen Sheldon, Simon Takata, Morimasa Trenke, Marcus Twarloh, Birthe Valero-Delgado, Fernando Wilhelms-Dick, Dorothee |
author_facet |
Wilhelms, Frank Miller, Heinrich Gerasimoff, Michael Drücker, Cord Frenzel, Andreas Fritzsche, Diedrich Grobe, Hannes Hansen, Steffen Bo Hilmarsson, Sverrir Æ. Hoffmann, Georg Hörnby, Kerstin Jaeschke, Andrea Jakobsdóttir, Steinunn Juckschat, Paul Karsten, Achim Karsten, Lorenz Kaufmann, Patrik Karlin, Torbjörn Kohlberg, Eberhard Kleffel, Guido Lambrecht, Anja Lambrecht, Astrid Lawer, Gunther Schärmeli, Ivan Schmitt, Jochen Sheldon, Simon Takata, Morimasa Trenke, Marcus Twarloh, Birthe Valero-Delgado, Fernando Wilhelms-Dick, Dorothee |
author_sort |
Wilhelms, Frank |
title |
The EPICA Dronning Maud Land deep drilling operation |
title_short |
The EPICA Dronning Maud Land deep drilling operation |
title_full |
The EPICA Dronning Maud Land deep drilling operation |
title_fullStr |
The EPICA Dronning Maud Land deep drilling operation |
title_full_unstemmed |
The EPICA Dronning Maud Land deep drilling operation |
title_sort |
epica dronning maud land deep drilling operation |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal.science/hal-03213402 https://hal.science/hal-03213402/document https://hal.science/hal-03213402/file/div-class-title-the-epica-dronning-maud-land-deep-drilling-operation-div.pdf https://doi.org/10.3189/2014AoG68A189 |
genre |
Annals of Glaciology Antarc* Antarctica Dronning Maud Land East Antarctica EPICA |
genre_facet |
Annals of Glaciology Antarc* Antarctica Dronning Maud Land East Antarctica EPICA |
op_source |
ISSN: 0260-3055 EISSN: 1727-5644 Annals of Glaciology https://hal.science/hal-03213402 Annals of Glaciology, 2014, 55 (68), pp.355-366. ⟨10.3189/2014AoG68A189⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3189/2014AoG68A189 hal-03213402 https://hal.science/hal-03213402 https://hal.science/hal-03213402/document https://hal.science/hal-03213402/file/div-class-title-the-epica-dronning-maud-land-deep-drilling-operation-div.pdf doi:10.3189/2014AoG68A189 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.3189/2014AoG68A189 |
container_title |
Annals of Glaciology |
container_volume |
55 |
container_issue |
68 |
container_start_page |
355 |
op_container_end_page |
366 |
_version_ |
1797579911664238592 |
spelling |
ftinsu:oai:HAL:hal-03213402v1 2024-04-28T07:55:25+00:00 The EPICA Dronning Maud Land deep drilling operation Wilhelms, Frank Miller, Heinrich Gerasimoff, Michael Drücker, Cord Frenzel, Andreas Fritzsche, Diedrich Grobe, Hannes Hansen, Steffen Bo Hilmarsson, Sverrir Æ. Hoffmann, Georg Hörnby, Kerstin Jaeschke, Andrea Jakobsdóttir, Steinunn Juckschat, Paul Karsten, Achim Karsten, Lorenz Kaufmann, Patrik Karlin, Torbjörn Kohlberg, Eberhard Kleffel, Guido Lambrecht, Anja Lambrecht, Astrid Lawer, Gunther Schärmeli, Ivan Schmitt, Jochen Sheldon, Simon Takata, Morimasa Trenke, Marcus Twarloh, Birthe Valero-Delgado, Fernando Wilhelms-Dick, Dorothee Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA) Glaces et Continents, Climats et Isotopes Stables (GLACCIOS) Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)) 2014 https://hal.science/hal-03213402 https://hal.science/hal-03213402/document https://hal.science/hal-03213402/file/div-class-title-the-epica-dronning-maud-land-deep-drilling-operation-div.pdf https://doi.org/10.3189/2014AoG68A189 en eng HAL CCSD Cambridge University Press info:eu-repo/semantics/altIdentifier/doi/10.3189/2014AoG68A189 hal-03213402 https://hal.science/hal-03213402 https://hal.science/hal-03213402/document https://hal.science/hal-03213402/file/div-class-title-the-epica-dronning-maud-land-deep-drilling-operation-div.pdf doi:10.3189/2014AoG68A189 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 0260-3055 EISSN: 1727-5644 Annals of Glaciology https://hal.science/hal-03213402 Annals of Glaciology, 2014, 55 (68), pp.355-366. ⟨10.3189/2014AoG68A189⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2014 ftinsu https://doi.org/10.3189/2014AoG68A189 2024-04-05T00:37:31Z International audience Abstract We report on the EPICA Dronning Maud Land (East Antarctica) deep drilling operation. Starting with the scientific questions that led to the outline of the EPICA project, we introduce the setting of sister drillings at NorthGRIP and EPICA Dome C within the European ice-coring community. The progress of the drilling operation is described within the context of three parallel, deep-drilling operations, the problems that occurred and the solutions we developed. Modified procedures are described, such as the monitoring of penetration rate via cable weight rather than motor torque, and modifications to the system (e.g. closing the openings at the lower end of the outer barrel to reduce the risk of immersing the drill in highly concentrated chip suspension). Parameters of the drilling (e.g. core-break force, cutter pitch, chips balance, liquid level, core production rate and piece number) are discussed. We also review the operational mode, particularly in the context of achieved core length and piece length, which have to be optimized for drilling efficiency and core quality respectively. We conclude with recommendations addressing the design of the chip-collection openings and strictly limiting the cable-load drop with respect to the load at the start of the run. Article in Journal/Newspaper Annals of Glaciology Antarc* Antarctica Dronning Maud Land East Antarctica EPICA Institut national des sciences de l'Univers: HAL-INSU Annals of Glaciology 55 68 355 366 |