Thermal ice core drilling to 700 m depth at Mizuho Station, East Antarctica
As part of the Glaciological Research Program in East Queen Maud Land, Antarctica in the Japanese Antarctic Research Expedition (JARE), thermal ice core drilling to the depth of 700.63m was conducted at Mizuho Station, East Antarctica (70°41′53″S, 44°19′54″) in 1983-1984. For the operation, an impro...
Main Authors: | , , , , |
---|---|
Format: | Report |
Language: | English |
Published: |
Institute of Low Temperature Science, Hokkaido University/National Institute of Polar Research/Nihon Public Engineering Co.Ltd./Faculty of Science, Toyama University/Geo-Tecs Co. Ltd.
1994
|
Subjects: | |
Online Access: | https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2221 http://id.nii.ac.jp/1291/00002221/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2221&item_no=1&attribute_id=18&file_no=1 |
id |
ftnipr:oai:nipr.repo.nii.ac.jp:00002221 |
---|---|
record_format |
openpolar |
spelling |
ftnipr:oai:nipr.repo.nii.ac.jp:00002221 2023-05-15T13:48:00+02:00 Thermal ice core drilling to 700 m depth at Mizuho Station, East Antarctica Hideki Narita Yoshiyuki Fujii Yoshiki Nakayama Kunio Kawada Akiyoshi Takahashi 1994-03 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2221 http://id.nii.ac.jp/1291/00002221/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2221&item_no=1&attribute_id=18&file_no=1 en eng Institute of Low Temperature Science, Hokkaido University/National Institute of Polar Research/Nihon Public Engineering Co.Ltd./Faculty of Science, Toyama University/Geo-Tecs Co. Ltd. https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2221 http://id.nii.ac.jp/1291/00002221/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 49, 172-183(1994-03) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2221&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1994 ftnipr 2022-11-12T19:43:03Z As part of the Glaciological Research Program in East Queen Maud Land, Antarctica in the Japanese Antarctic Research Expedition (JARE), thermal ice core drilling to the depth of 700.63m was conducted at Mizuho Station, East Antarctica (70°41′53″S, 44°19′54″) in 1983-1984. For the operation, an improved version of the drill was designed and manufactured by Geo-Tecs Co. Ltd. in Japan. With the aid of a micro-processor, the drill could send to the surface analog data (converted to 8 bites) on the temperature of the main-heater, water tank, etc. during drilling. Drilling of the first borehole started on April 22,1983 and terminated on July 22 at 411.5m depth. Drilling was stopped because closure of the borehole became so rapid that the drill might be come stuck. This drilling was conducted by a five-man team during 499 working hours. On March 11,1984 reaming of the drill-hole was conducted. The core drilling of the second borehole was started from the depth of 133.5m on June 11,and finished on August 1,1984. At that time the drilling was conducted with larger clearance between the drill and the hole. A drill 168mm in diameter was used for drilling to 633m and another drill 142.6mm in diameter was used up to 700.63m depth. A six-man team spent 1014 working hours to reach that depth. Report Antarc* Antarctic Antarctica East Antarctica ice core Memoirs of National Institute of Polar Research Polar Research Queen Maud Land National Institute of Polar Research Repository, Japan Antarctic East Antarctica Mizuho ENVELOPE(44.317,44.317,-70.683,-70.683) Queen Maud Land ENVELOPE(12.000,12.000,-72.500,-72.500) Mizuho Station ENVELOPE(44.317,44.317,-70.683,-70.683) |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
description |
As part of the Glaciological Research Program in East Queen Maud Land, Antarctica in the Japanese Antarctic Research Expedition (JARE), thermal ice core drilling to the depth of 700.63m was conducted at Mizuho Station, East Antarctica (70°41′53″S, 44°19′54″) in 1983-1984. For the operation, an improved version of the drill was designed and manufactured by Geo-Tecs Co. Ltd. in Japan. With the aid of a micro-processor, the drill could send to the surface analog data (converted to 8 bites) on the temperature of the main-heater, water tank, etc. during drilling. Drilling of the first borehole started on April 22,1983 and terminated on July 22 at 411.5m depth. Drilling was stopped because closure of the borehole became so rapid that the drill might be come stuck. This drilling was conducted by a five-man team during 499 working hours. On March 11,1984 reaming of the drill-hole was conducted. The core drilling of the second borehole was started from the depth of 133.5m on June 11,and finished on August 1,1984. At that time the drilling was conducted with larger clearance between the drill and the hole. A drill 168mm in diameter was used for drilling to 633m and another drill 142.6mm in diameter was used up to 700.63m depth. A six-man team spent 1014 working hours to reach that depth. |
format |
Report |
author |
Hideki Narita Yoshiyuki Fujii Yoshiki Nakayama Kunio Kawada Akiyoshi Takahashi |
spellingShingle |
Hideki Narita Yoshiyuki Fujii Yoshiki Nakayama Kunio Kawada Akiyoshi Takahashi Thermal ice core drilling to 700 m depth at Mizuho Station, East Antarctica |
author_facet |
Hideki Narita Yoshiyuki Fujii Yoshiki Nakayama Kunio Kawada Akiyoshi Takahashi |
author_sort |
Hideki Narita |
title |
Thermal ice core drilling to 700 m depth at Mizuho Station, East Antarctica |
title_short |
Thermal ice core drilling to 700 m depth at Mizuho Station, East Antarctica |
title_full |
Thermal ice core drilling to 700 m depth at Mizuho Station, East Antarctica |
title_fullStr |
Thermal ice core drilling to 700 m depth at Mizuho Station, East Antarctica |
title_full_unstemmed |
Thermal ice core drilling to 700 m depth at Mizuho Station, East Antarctica |
title_sort |
thermal ice core drilling to 700 m depth at mizuho station, east antarctica |
publisher |
Institute of Low Temperature Science, Hokkaido University/National Institute of Polar Research/Nihon Public Engineering Co.Ltd./Faculty of Science, Toyama University/Geo-Tecs Co. Ltd. |
publishDate |
1994 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2221 http://id.nii.ac.jp/1291/00002221/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2221&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(44.317,44.317,-70.683,-70.683) ENVELOPE(12.000,12.000,-72.500,-72.500) ENVELOPE(44.317,44.317,-70.683,-70.683) |
geographic |
Antarctic East Antarctica Mizuho Queen Maud Land Mizuho Station |
geographic_facet |
Antarctic East Antarctica Mizuho Queen Maud Land Mizuho Station |
genre |
Antarc* Antarctic Antarctica East Antarctica ice core Memoirs of National Institute of Polar Research Polar Research Queen Maud Land |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica ice core Memoirs of National Institute of Polar Research Polar Research Queen Maud Land |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2221 http://id.nii.ac.jp/1291/00002221/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 49, 172-183(1994-03) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2221&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766248356383817728 |