Results 21 to 30 of about 24,371 (312)

Deep ice coring at Dome Fuji Station, Antarctica

Antarctic Record, 1999
Deep ice coring was carried out at Dome Fuji Station, Antarctica in 1995 and 1996 following a pilot borehole drilled and cased with FRP pipes in 1993,and reached 2503.52m in December 1996.
Yoshiyuki Fujii, Nobuhiko Azuma, Yoichi Tanaka, Akiyoshi Takahashi, Kunio Shinbori, Yoshiki Nakayama, Hideaki Motoyama, Kazuo Katagiri, Shuji Fujita, Morihiro Miyahara, Takao Kameda, Takashi Saito, Takeshi Saito, Hitoshi Shoji, Takayuki Shiraiwa, Hideki Narita, Kokichi Kamiayma, Teruo Furukawa, Hideo Maeno, Hiroyuki Enomoto, Renji Naruse, Kotaro Yokoyama, Takeo Hondo, Yutaka Aageta, Kunio Kawada, Okitsugu Watanabe   +25 more
doaj   +1 more source

Antarctic subglacial drilling rig: Part III. Drilling auxiliaries and environmental measures

Annals of Glaciology, 2021
The Antarctic subglacial drilling rig (ASDR) is designed to recover 105 mm-diameter ice cores up to 1400 m depth and 41.5 mm-diameter bedrock cores up to 2 m in length. In order to ensure safe and convenient drilling, drilling auxiliaries are designed to
Xiaopeng Fan, Pavel Talalay, Youhong Sun, Xingchen Li, Nan Zhang, Alexey Markov, Yang Yang, Pinlu Cao, Rusheng Wang, Yongwen Liu, Yunchen Liu, Ting Wang, Wei Wu, Cheng Yang, Jialin Hong, Da Gong, Han Zhang, Mikhail Sysoev, Xiao Li, An Liu, Yazhou Li   +20 more
doaj   +1 more source

Rapid Access Ice Drill: a new tool for exploration of the deep Antarctic ice sheets and subglacial geology

Journal of Glaciology, 2016
A new Rapid Access Ice Drill (RAID) will penetrate the Antarctic ice sheets in order to create borehole observatories and take cores in deep ice, the glacial bed and bedrock below.
JOHN W. GOODGE, JEFFREY P. SEVERINGHAUS
doaj   +1 more source

Where to find 1.5 million yr old ice for the IPICS "Oldest-Ice" ice core [PDF]

Climate of the Past, 2013
The recovery of a 1.5 million yr long ice core from Antarctica represents a keystone of our understanding of Quaternary climate, the progression of glaciation over this time period and the role of greenhouse gas cycles in this progression. Here we tackle
H. Fischer, J. Severinghaus, E. Brook, E. Wolff, M. Albert, O. Alemany, R. Arthern, C. Bentley, D. Blankenship, J. Chappellaz, T. Creyts, D. Dahl-Jensen, M. Dinn, M. Frezzotti, S. Fujita, H. Gallee, R. Hindmarsh, D. Hudspeth, G. Jugie, K. Kawamura, V. Lipenkov, H. Miller, R. Mulvaney, F. Parrenin, F. Pattyn, C. Ritz, J. Schwander, D. Steinhage, T. van Ommen, F. Wilhelms   +29 more
doaj   +1 more source

New synthetic fiber armored cable for freezing-in thermal ice probes

Annals of Glaciology, 2021
A series of new synthetic armored cables were developed and tested to ensure that they were suitable for use with the RECoverable Autonomous Sonde (RECAS), which is a newly designed freezing-in thermal ice probe.
Nan Zhang, Hui Liu, Pavel Talalay, Youhong Sun, Na Li, Xiaopeng Fan, Bing Li, Da Gong, Jialin Hong, Ting Wang, An Liu, Yazhou Li, Yunchen Liu, Rusheng Wang, Yang Yang, Liang Wang   +15 more
doaj   +1 more source

Temporal and spatial variability of snow accumulation in central Greenland [PDF]

, 1997
Snow accumulation records from central Greenland are explored to improve the understanding of the accumulation signal in Greenland ice core records. Results from a “forest” of 100 bamboo poles and automated accumulation monitors in the vicinity of Summit
Bolzan, Bromwich, C. Davidson, C. Stearns, Clausen, Dibb, Fischer, Fisher, H. Kuhns, J. Dibb, J.-L. Jaffrezo, Jaffrezo, M. Bergin, Mayewski, McConnell, Rodriguez-Iturbe   +15 more
core   +2 more sources

Where is the 1-million-year-old ice at Dome A? [PDF]

The Cryosphere, 2018
Ice fabric influences the rheology of ice, and hence the age–depth profile at ice core drilling sites. To investigate the age–depth profile to be expected of the ongoing deep ice coring at Kunlun station, Dome A, we use the depth-varying anisotropic ...
L. Zhao, L. Zhao, J. C. Moore, J. C. Moore, J. C. Moore, B. Sun, X. Tang, X. Guo   +7 more
doaj   +1 more source

Antarctic subglacial drilling rig: Part IV. Electrical and electronic control system

Annals of Glaciology, 2021
In many cases, the efficiency and safety of a drilling project depend on the reliability of the electrical and electronic control system, as the process progresses without visual access of the operator.
Nan Zhang, Pavel Talalay, Jingbiao Liu, Xiaopeng Fan, Qingpeng Kong, Haibin Yu, Yunchen Liu, Benkun Liu, Da Gong, Xingchen Li, Wei Wu, Jialin Hong, Mikhail Sysoev   +12 more
doaj   +1 more source

Experimental results on improved JARE deep ice core drill-Experiments in Rikubetsu, Hokkaido in 2002 -

Antarctic Record, 2002
Deep ice coring to bedrock (3028m in depth) at Dome Fuji Station is planned during three successive summer seasons starting from 2003/2004. An improved JARE deep ice core drill (12.2m in length and 3.8m in maximum core length) was developed in December ...
Takao Kameda, Yoshiyuki Fujii, Akiyoshi Takahashi, Yoichi Tanaka, Hideki Narita, Kunio Shinbori, Nobuhiko Azuma, Teruo Furukawa, Takayasu Yoshimoto, Morihiro Miyahara, Makato Igarashi, Mika Kohno, Sumito Matoba, Yoko Toyama, Kazuhide Satow, Shuhei Takahashi, Okitsugu Watanabe   +16 more
doaj   +1 more source

The marginal shear stress of Ice Stream B, West Antarctica [PDF]

, 1997
To ascertain whether the velocity of Ice Stream B, West Antarctica, may be controlled by the stress in its marginal shear zones (the "Snake" and the "Dragon"), we undertook a determination of the marginal shear stress in the Dragon near Camp Up B by ...
Jackson, Miriam, Kamb, Barclay
core   +1 more source