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Antarctic subglacial drilling rig: Part II. Ice and Bedrock Electromechanical Drill (IBED)

期刊: ANNALS OF GLACIOLOGY, 2021; 62 (84)

Anew, modified version of the cable-suspended Ice and Bedrock Electromechanical Drill (IBED) was designed for drilling in firn, ice, debris-rich ice a......

Antarctic subglacial drilling rig: Part I. General concept and drilling shelter structure

期刊: ANNALS OF GLACIOLOGY, 2021; 62 (84)

Drilling to the bedrock of ice sheets and glaciers offers unique opportunities for examining the processes occurring in the bed. Basal and subglacial ......

Shallow hot-point drill system for active layer temperature measurement along Zhongshan-Dome A traverse, Antarctica

期刊: ANNALS OF GLACIOLOGY, 2021; 62 (84)

In glaciology, snow-firn temperature at 10 m is considered a representation of the mean annual air temperature at the surface (MAAT) of the studied si......

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

期刊: ANNALS OF GLACIOLOGY, 2021; 62 (84)

In many cases, the efficiency and safety of a drilling project depend on the reliability of the electrical and electronic control system, as the proce......

Design and analysis of deepwater tension sensors for ice drill application

期刊: ANNALS OF GLACIOLOGY, 2021; 62 (84)

Monitoring the tension in cables is significant in some ice drill and deepwater applications. Take our RECoverable Autonomous Sonde (RECAS) for exampl......

Optimization of hot-water ice-coring drills

期刊: ANNALS OF GLACIOLOGY, 2021; 62 (84)

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......

Perspectives for development of ice drilling technology: continuation of the discussion

期刊: ANNALS OF GLACIOLOGY, 2021; 62 (84)

Recently, innovations in ice drilling have yielded considerable improvements to existing drilling techniques, as well as innovative drilling technolog......

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

期刊: ANNALS OF GLACIOLOGY, 2021; 62 (84)

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......

The SUBGLACIOR drilling probe: hydraulic considerations

期刊: ANNALS OF GLACIOLOGY, 2021; 62 (84)

Using significant technological breakthroughs and unconventional approaches, the goal of the in situ probing of glacier ice for a better understanding......

Freeboard height and snow depth observed by floating GPS on land-fast sea ice in Nella Fjord, Antarctica

期刊: ANNALS OF GLACIOLOGY, 2020; 61 (82)

Although altimeters have been widely used to monitor the spatiotemporal variation of sea-ice thickness, they are unable to separate sea-ice freeboard ......

Monitoring evolution of melt ponds on first-year and multiyear sea ice in the Canadian Arctic Archipelago with optical satellite data

期刊: ANNALS OF GLACIOLOGY, 2020; 61 (82)

The evolution of melt ponds on Arctic sea ice in summer is one of the main factors that affect sea-ice albedo and hence the polar climate system. Due ......

Influence of the loading direction on the uniaxial compressive strength of sea ice based on field measurements

期刊: ANNALS OF GLACIOLOGY, 2020; 61 (82)

Sea ice is composed of columnar-shaped grains. To investigate the influence of the loading direction on the uniaxial compressive strength and failure ......

Investigating controls on sea ice algal production using E3SMv1.1-BGC

期刊: ANNALS OF GLACIOLOGY, 2020; 61 (82)

We present the analysis of global sympagic primary production (PP) from 300 years of pre-industrial and historical simulations of the E3SMv1.1-BGC mod......

Sea-ice freeboard and thickness in the Ross Sea from airborne (IceBridge 2013) and satellite (ICESat 2003-2008) observations

期刊: ANNALS OF GLACIOLOGY, 2020; 61 (82)

NASA's Operation IceBridge mission flew over the Ross Sea, Antarctica (20 and 27 November 2013) and collected data with Airborne Topographic Mapper (A......

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