Results 11 to 20 of about 187 (113)

Stable isotope (δD–δ18O) relationships of ice facies and glaciological structures within the mid-latitude maritime Fox Glacier, New Zealand

Annals of Glaciology, 2017
Relationships between stable isotopes (δD–δ18O), ice facies and glacier structures have hitherto gone untested in the mid-latitude maritime glaciers of the Southern Hemisphere.
John R. Appleby, Martin S. Brook, Travis W. Horton, Ian C. Fuller, Katherine A. Holt, Duncan J. Quincey   +5 more
doaj   +1 more source

Airborne Snow Radar Data Simulation With Deep Learning and Physics-Driven Methods

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Monitoring properties of ice sheets in polar regions is one of the main challenges in glaciology. There is a large amount of heterogeneous radar data from the polar regions that have been gathered through expensive missions.
Masoud Yari, Oluwanisola Ibikunle, Debvrat Varshney, Tashnim Chowdhury, Argho Sarkar, John Paden, Jilu Li, Maryam Rahnemoonfar   +7 more
doaj   +1 more source

Flow and structure in a dendritic glacier with bedrock steps

Journal of Glaciology, 2017
We analyse ice flow and structural glaciology of Shackleton Glacier, a dendritic glacier with multiple icefalls in the Canadian Rockies. A major tributary-trunk junction allows us to investigate the potential of tributaries to alter trunk flow and ...
HESTER JISKOOT, THOMAS A FOX, WESLEY VAN WYCHEN   +2 more
doaj   +1 more source

Topography reconstruction and evolution analysis of outlet glacier using data from unmanned aerial vehicles in Antarctica

International Journal of Applied Earth Observations and Geoinformation, 2023
Reconstruction of glacial topography is important for assessing the ice dynamics of glaciers in the past and understanding how they may respond to climate change in the future.
Gang Qiao, Xiaohan Yuan, Igor Florinsky, Sergey Popov, Youquan He, Hongwei Li   +5 more
doaj   +1 more source

Effects of microparticles on deformation and microstructural evolution of fine-grained ice

Journal of Glaciology, 2019
We investigated the effects of microparticles and grain size on the microstructural evolutions and mechanical properties of polycrystalline ice. Uniaxial compression tests were conducted using fine-grained pure ice and silica-dispersed ice under various ...
TOMOTAKA SARUYA, KOKI NAKAJIMA, MORIMASA TAKATA, TOMOYUKI HOMMA, NOBUHIKO AZUMA, KUMIKO GOTO-AZUMA   +5 more
doaj   +1 more source

The influence of strain rate and presence of dispersed second phases on the deformation behaviour of polycrystalline D2O ice

Journal of Glaciology, 2019
This contribution discusses results obtained from 3-D neutron diffraction and 2-D fabric analyser in situ deformation experiments on laboratory-prepared polycrystalline deuterated ice and ice containing a second phase.
CHRISTOPHER J.L. WILSON, NICHOLAS J. R. HUNTER, VLADIMIR LUZIN, MARK PETERNELL, SANDRA PIAZOLO   +4 more
doaj   +1 more source

Modelling debris transport within glaciers by advection in a full-Stokes ice flow model [PDF]

The Cryosphere, 2018
Glaciers with extensive surface debris cover respond differently to climate forcing than those without supraglacial debris. In order to include debris-covered glaciers in projections of glaciogenic runoff and sea level rise and to understand the ...
A. Wirbel, A. H. Jarosch, L. Nicholson
doaj   +1 more source

Structural provinces of the Ross Ice Shelf, Antarctica

Annals of Glaciology, 2017
The surface of the Ross Ice Shelf (RIS) is textured by flow stripes, crevasses and other features related to ice flow and deformation. Here, moderate resolution optical satellite images are used to map and classify regions of the RIS characterized by ...
Christine M. LeDoux, Christina L. Hulbe, Martin P. Forbes, Ted A. Scambos, Karen Alley   +4 more
doaj   +1 more source

Response of glacier flow and structure to proglacial lake development and climate at Fjallsjökull, south-east Iceland

Journal of Glaciology, 2019
Over recent decades, the number of outlet glaciers terminating in lakes in Iceland has increased in line with climate warming. The mass-balance changes of these lake-terminating outlet glaciers are sensitive to rising air temperatures, due to altered ...
REBECCA DELL, RACHEL CARR, EMRYS PHILLIPS, ANDREW J. RUSSELL   +3 more
doaj   +1 more source

A talus rock glacier in Nantlle Valley, North Wales

Journal of Quaternary Science, EarlyView.
ABSTRACT Landforms comprising mixtures of fine and coarse sediment and deposited during late glacial times are ubiquitous in the British mountains. In many cases, their interpretation has often proved contentious; as a result, the non‐generic term discrete debris accumulations (DDA) has been used to describe them and, over the last 50 years, some have ...
Stephan Harrison, Ed Anderson
wiley   +1 more source