Results 21 to 30 of about 186,723 (251)
Journal of Glaciology, 2018 Ice rheology governs how glaciers flow and respond to environmental change. The rheology of glacier ice evolves in response to a variety of mechanisms, including damage, heating, melting and the development of crystalline fabric.
BRENT M. MINCHEW +4 more
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Antarctic Record, 1998 Linear deformation laws have been applied to post glacial rebound, while many speculations based on real rock samples support non-linear rheology in the upper mantle. Essential information is required to support the assumed constitutive relation.
Atsuki Kubo
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GEORGIA: A Graph Neural Network Based EmulatOR for Glacial Isostatic Adjustment
Geophysical Research Letters, 2023 Glacial isostatic adjustment (GIA) modeling is not only useful for understanding past relative sea‐level change but also for projecting future sea‐level change due to ongoing land deformation.
Yucheng Lin +3 more
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Effects of mantle rheologies on viscous heating induced by Glacial Isostatic Adjustment
Geophysical Journal International, 2017 It has been argued that viscous dissipation from mantle flow in response to surface loading during glacial cycles can result in short-term heating and thus trigger transient volcanism or changes in mantle properties, which may in turn affect mantle dynamics. Furthermore, heating near the Earth's surface can also affect the stability of ice sheets.
Huang PP, Wu P, van der Wal W
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Geodetic Observations of Time‐Variable Glacial Isostatic Adjustment in Southeast Alaska and Its Implications for Earth Rheology [PDF]
Journal of Geophysical Research: Solid Earth, 2019 AbstractGlobal Positioning System observations in Southeast Alaska show evidence for interannual variations in uplift rates, which are consistent with an acceleration of mass loss rates across the region from the 1990s to 2012. We constructed an updated regional loading model based on updated twentieth century average deglaciation estimates. This model
Yan Hu, Jeffrey T. Freymueller
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The future is Nye: an extension of the perfect plastic approximation to tidewater glaciers
Journal of Glaciology, 2016 Accurate modeling of calving glaciers relies on knowledge of many processes (ice flow, surface/submarine melting, calving, mélange interaction) and glacier-specific factors (air temperature, ocean circulation, precipitation rate, glacier geometry) that ...
LIZZ ULTEE, JEREMY BASSIS
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A global semi-empirical glacial isostatic adjustment (GIA) model based on Gravity Recovery and Climate Experiment (GRACE) data [PDF]
Earth System Dynamics, 2020 The effect of glacial isostatic adjustment (GIA) on the shape and gravity of the Earth is usually described by numerical models that solve for both glacial evolution and Earth's rheology, being mainly constrained by the geological evidence of local ice ...
Y. Sun, R. E. M. Riva
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Quaternary Glacial Geology of Alta Ribagorqa Basin (Central Southern Pyrenees) [PDF]
, 2012 This paper is an abstract of the doctoral thesis presented by the autor at the University of Barcelona on September 1983. It constitutes a regional study about the Quatemary Glacial Geology in the Ribagorca high valleys.
Vilaplana, Joan Manuel
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Ice-age ice-sheet rheology: constraints from the Last Glacial Maximum form of the Laurentide ice sheet [PDF]
Annals of Glaciology, 2000 AbstractState-of-the-art thermomechanical models of the modern Greenland ice sheet and the ancient Laurentide ice sheet that covered Canada at the Last Glacial Maximum (LGM) are not able to explain simultaneously the observed forms of these cryospheric structures when the same, anisotropy-enhanced, version of the conventional Glen flow law is employed ...
W. Richard Peltier +3 more
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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 +5 more
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