Results 1 to 10 of about 78 (75)

Exploring Explanations of Subglacial Bedform Sizes Using Statistical Models. [PDF]

PLoS ONE, 2016
Sediments beneath modern ice sheets exert a key control on their flow, but are largely inaccessible except through geophysics or boreholes. In contrast, palaeo-ice sheet beds are accessible, and typically characterised by numerous bedforms.
John K Hillier, Ioannis A Kougioumtzoglou, Chris R Stokes, Michael J Smith, Chris D Clark, Matteo S Spagnolo   +5 more
doaj   +2 more sources

Development of a Zynq-Based Seismic Acquisition Station for the Exploration of Antarctic Subglacial Lakes [PDF]

Sensors
Linyan Guo, Qisheng Zhang, Yongqing Wang   +2 more
exaly   +2 more sources

Geothermal heat flow from borehole measurements at the margin of Princess Elizabeth Land (East Antarctic Ice Sheet)

Journal of Glaciology, 2023
A 198.8 m deep borehole was drilled through ice to subglacial bedrock in the northwestern marginal part of Princess Elizabeth Land, ~12 km south of Zhongshan Station, in January–February 2019. Three years later, in February 2022, the borehole temperature
Pavel G. Talalay, Da Gong, Xiaopeng Fan, Yazhou Li, German Leitchenkov, Bing Li, Nan Zhang, Rusheng Wang, Yang Yang, Jialin Hong   +9 more
doaj   +1 more source

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

Annals of Glaciology, 2021
A new, modified version of the cable-suspended Ice and Bedrock Electromechanical Drill (IBED) was designed for drilling in firn, ice, debris-rich ice and rock.
Pavel Talalay, Xingchen Li, Nan Zhang, Xiaopeng Fan, Youhong Sun, Pinlu Cao, Rusheng Wang, Yang Yang, Yongwen Liu, Yunchen Liu, Wei Wu, Cheng Yang, Jialin Hong, Da Gong, Han Zhang, Xiao Li, Yunwang Chen, An Liu, Yazhou Li   +18 more
doaj   +1 more source

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

Annals of Glaciology, 2021
Drilling to the bedrock of ice sheets and glaciers offers unique opportunities for examining the processes occurring in the bed. Basal and subglacial materials contain important paleoclimatic and paleoenvironmental records and provide a unique habitat ...
Pavel Talalay, Youhong Sun, Xiaopeng Fan, Nan Zhang, Pinlu Cao, Rusheng Wang, Alexey Markov, Xingchen Li, Yang Yang, Mikhail Sysoev, Yongwen Liu, Yunchen Liu, Wei Wu, Da Gong   +13 more
doaj   +1 more source

Multi-decadal basal slip enhancement at Saskatchewan Glacier, Canadian Rocky Mountains

Journal of Glaciology, 2023
Glacier motion responds dynamically to changing meltwater inputs, but the multi-decadal response of basal sliding to climate remains poorly constrained due to its sensitivity across multiple timescales.
Nathan T. Stevens, Collin J. Roland, Lucas K. Zoet, Richard B. Alley, Dougal D. Hansen, Emily Schwans   +5 more
doaj   +1 more source

Efficiency of artificial neural networks for glacier ice-thickness estimation: a case study in western Himalaya, India

Journal of Glaciology, 2021
Knowledge of glacier volume is crucial for ice flow modelling and predicting the impacts of climate change on glaciers. Rugged terrain, harsh weather conditions and logistic costs limit field-based ice thickness observations in the Himalaya.
Mohd Anul Haq, Mohd Farooq Azam, Christian Vincent   +2 more
doaj   +1 more source

Removal of ‘strip noise’ in radio-echo sounding data using combined wavelet and 2-D DFT filtering

Annals of Glaciology, 2020
Radio-echo sounding (RES) can be used to understand ice-sheet processes, englacial flow structures and bed properties, making it one of the most popular tools in glaciological exploration.
Bangbing Wang, Bo Sun, Jiaxin Wang, Jamin Greenbaum, Jingxue Guo, Laura Lindzey, Xiangbin Cui, Duncan A. Young, Donald D. Blankenship, Martin J. Siegert   +9 more
doaj   +1 more source

The precision of radar-derived subglacial bed topography: a case study from Pine Island Glacier, Antarctica

Annals of Glaciology, 2020
Recent advances in the measurement of bedforms beneath active ice streams have been made using ground-based grid profiling using impulse radar systems operating with centre frequencies in the 3–5 MHz range.
Edward C. King
doaj   +1 more source

Subglacial sediment distribution from constrained seismic inversion, using MuLTI software: examples from Midtdalsbreen, Norway

Annals of Glaciology, 2019
Fast ice flow is associated with the deformation of subglacial sediment. Seismic shear velocities, Vs, increase with the rigidity of material and hence can be used to distinguish soft sediment from hard bedrock substrates.
Siobhan F. Killingbeck, Adam D. Booth, Philip W. Livermore, Landis J. West, Benedict T. I. Reinardy, Atle Nesje   +5 more
doaj   +1 more source