Detection of Surface Crevasses Over Antarctic Ice Shelves Using SAR Imagery and Deep Learning Method
Remote Sensing, 2022 Crevasses are formed by glacier movement and the stresses within glacier ice. Knowledge of the crevasses’ distribution is critical for understanding the glacier and ice shelf stability. In this study, we propose an automated crevasse extraction framework
Jingjing Zhao +4 more
exaly +4 more sources
Variability in the Vertical Temperature Profile Within Crevasses at an Alpine Glacier [PDF]
Journal of Glaciology, 2023 Tasman Glacier, a temperate maritime glacier in the New Zealand Southern Alps, is rapidly receding. Climate warming is resulting in lengthening of the ablation season, meaning crevasses in the accumulation area are becoming exposed at the surface for ...
Heather L Purdie +2 more
exaly +4 more sources
International Journal of Applied Earth Observation and GeoinformationThe evolution of crevasses on ice shelves plays a pivotal role in maintaining their stability. Investigating the developmental pattern of crevasses on ice shelf surfaces necessitates long-term dynamic monitoring, high-precision automatic extraction ...
Baojun Zhang, Jiachun An, Zemin Wang
exaly +4 more sources
Mapping Antarctic crevasses and their evolution with deep learning applied to satellite radar imagery [PDF]
The Cryosphere, 2023 The fracturing of glaciers and ice shelves in Antarctica influences their dynamics and stability. Hence, data on the evolving distribution of crevasses are required to better understand the evolution of the ice sheet, though such data have traditionally ...
T. Surawy-Stepney +3 more
doaj +4 more sources
Firn Aquifer Water Discharges Into Crevasses Across Southeast Greenland
Journal of Glaciology, 2023 In Southeast Greenland, summer melt and high winter snowfall rates give rise to firn aquifers: vast stores of meltwater buried beneath the ice-sheet surface.
Kristin Poinar +2 more
exaly +3 more sources
Effect of ice formation in crevasses to the temperature field in the cold layer of glacier [PDF]
Лëд и снег, 2023 The work focuses on modeling the warming of a glacier due to heat release during the refreezing of meltwater in glacier crevasses (cryo-hydrologic warming).
G. A. Chernyakov, R. A. Chernov
doaj +2 more sources
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 Crevasse is an important characteristic of ice shelf internal structure, and also an important index to measure the stability of ice shelf. This study aims to detect crevasses from ICESat-2 data and obtain three-dimensional features of the crevasse ...
Guoyuan Li +5 more
doaj +2 more sources
Annals of Glaciology, 2016 Detailed studies on temporal changes of crevasses and their linkage with glacier dynamics are scarce in the Himalayan context. Observations of temporally changing surficial crevasse patterns and their orientations are suggestive of the processes that ...
Anshuman Bhardwaj, Lydia Sam
exaly +3 more sources
Basal hydrofractures near sticky patches
Journal of Glaciology, 2023 Basal crevasses are macroscopic structural discontinuities at the base of ice sheets and glaciers that arise by fracture. Motivated by observations and by the mechanics of elastic fracture, we hypothesise that spatial variations in basal stress (in the ...
Hanwen Zhang +4 more
doaj +1 more source
Geophysical Monograph Series, Page 263-304., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside +3 more
wiley +1 more source