Results 1 to 10 of about 804,547 (290)
Design and analysis of deepwater tension sensors for ice drill application
Annals of Glaciology, 2021 Monitoring the tension in cables is significant in some ice drill and deepwater applications. Take our RECoverable Autonomous Sonde (RECAS) for example. It is able to melt a hole to the bottom of ice sheet and is able to move upwards.
Jianguang Shi +7 more
doaj +1 more source
Non-contact measurement system for hot water drilled ice boreholes
Annals of Glaciology, 2021 A programmable borehole measurement system was deployed in hot water drilled ice holes during the ‘Bed Access and Monitoring of Ice Sheet History’ (BEAMISH) project to drill to the bed of the Rutford Ice Stream in West Antarctica.
Carson W. I. McAfee +5 more
doaj +1 more source
Measurement of nonvolatile particle number size distribution [PDF]
Atmospheric Measurement Techniques, 2016 An experimental methodology was developed to measure the nonvolatile particle number concentration using a thermodenuder (TD). The TD was coupled with a high-resolution time-of-flight aerosol mass spectrometer, measuring the chemical composition and mass
G. I. Gkatzelis +5 more
doaj +1 more source
Journal of Glaciology, 2023 We developed a novel laser melting sampler (LMS) for ice cores to measure the stable water isotope ratios (δ18O and δD) as temperature proxies at sub-centimeter depth resolutions.
Yuko Motizuki +11 more
doaj +1 more source
Slovak Dataset for Multilingual Question Answering
IEEE Access, 2023 SK-QuAD is the first manually annotated dataset of questions and answers in Slovak. It consists of more than 91k factual questions and answers from various fields. Each question has an answer marked in the corresponding paragraph.
Daniel Hladek +3 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 +12 more
doaj +1 more source
An efficient melting probe for glacial research
Annals of Glaciology, 2021 In this paper, we present an electric-thermal drill with a novel design of a melting head that was developed within the EnEx-RANGE project. The design combines a short melting head with a large surface area of parabolic shape.
Dirk Heinen +3 more
doaj +1 more source
Drilling operations for the South Pole Ice Core (SPICEcore) project
Annals 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
Deep ice-core drilling to 800 m at Dome A in East Antarctica
Annals 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
Development of a clean hot water drill to access Subglacial Lake CECs, West Antarctica
Annals of Glaciology, 2021 Recent drilling successes on Rutford Ice Stream in West Antarctica demonstrate the viability of hot water drilling subglacial access holes to depths >2000 m.
Keith Makinson +9 more
doaj +1 more source