Results 1 to 10 of about 325,307 (161)

Synchronizing ice cores from the Renland and Agassiz ice caps to the Greenland Ice Core Chronology [PDF]

open access: yesJournal of Geophysical Research, 2008
Four ice cores from the Agassiz ice cap in the Canadian high arctic and one ice core from the Renland ice cap in eastern Greenland have been synchronized to the Greenland Ice Core Chronology 2005 (GICC05) which is based on annual layer counts in the DYE‐3, GRIP and NGRIP ice cores.
B M Vinther, H B Clausen, R M Koerner
exaly   +3 more sources

Clean Low-Biomass Procedures and Their Application to Ancient Ice Core Microorganisms [PDF]

open access: yesFrontiers in Microbiology, 2018
Microorganisms in glacier ice provide tens to hundreds of thousands of years archive for a changing climate and microbial responses to it. Analyzing ancient ice is impeded by technical issues, including limited ice, low biomass, and contamination.
Zhi-Ping Zhong   +13 more
doaj   +2 more sources

Twenty Years of Drilling the Deepest Hole in Ice [PDF]

open access: yesScientific Drilling, 2011
No abstract available.
N. I. Vasiliev   +2 more
doaj   +3 more sources

Deep ice-core drilling to 800 m at Dome A in East Antarctica

open access: yesAnnals of Glaciology, 2021
A deep ice core was drilled at Dome A, Antarctic Plateau, East Antarctica, which started with the installation of a casing in January 2012 and reached 800.8 m in January 2017. To date, a total of 337 successful ice-core drilling runs have been conducted,
Zhengyi Hu   +13 more
doaj   +1 more source

Optimization of hot-water ice-coring drills

open access: yesAnnals of Glaciology, 2021
Hot-water ice-coring drills are often used to recover ice core samples from desirable depths in conjunction with full-scale hot-water drilling systems. However, the recovered cores exhibit varying qualities.
An Liu   +6 more
doaj   +1 more source

Drilling operations for the South Pole Ice Core (SPICEcore) project

open access: yesAnnals of Glaciology, 2021
Over the course of the 2014/15 and 2015/16 austral summer seasons, the South Pole Ice Core project recovered a 1751 m deep ice core at the South Pole. This core provided a high-resolution record of paleoclimate conditions in East Antarctica during the ...
Jay A. Johnson   +7 more
doaj   +1 more source

Gases in ice cores [PDF]

open access: yesProceedings of the National Academy of Sciences, 1997
Air trapped in glacial ice offers a means of reconstructing variations in the concentrations of atmospheric gases over time scales ranging from anthropogenic (last 200 yr) to glacial/interglacial (hundreds of thousands of years). In this paper, we review the glaciological processes by which air is trapped in the ice and discuss ...
M, Bender, T, Sowers, E, Brook
openaire   +2 more sources

Core handling, transportation and processing for the South Pole ice core (SPICEcore) project

open access: yesAnnals of Glaciology, 2021
An intermediate-depth (1751 m) ice core was drilled at the South Pole between 2014 and 2016 using the newly designed US Intermediate Depth Drill. The South Pole ice core is the highest-resolution interior East Antarctic ice core record that extends into ...
Joseph M. Souney   +13 more
doaj   +1 more source

A stratigraphy-based method for reconstructing ice core orientation

open access: yesAnnals of Glaciology, 2021
Ever since the first deep ice cores were drilled, it has been a challenge to determine their original, in-situ orientation. In general, the orientation of an ice core is lost as the drill is free to rotate during transport to the surface. For shallow ice
Julien Westhoff   +8 more
doaj   +1 more source

Physical analysis of an Antarctic ice core—towards an integration of micro- and macrodynamics of polar ice [PDF]

open access: yesPhilosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2017
Ilka Weikusat   +2 more
exaly   +2 more sources

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