Results 41 to 50 of about 7,713 (263)
Mapping Surface Flow Velocity of Glaciers at Regional Scale Using a Multiple Sensors Approach
Remote Sensing, 2019 We explore and compare the capabilities and limitations of different optical sensors (Sentinel-2/ESA, Landsat 7/8/USGS, Ven μ s/CNES-ISA, Pléiades/AirbusD&S and Planet Labs images) for mapping the surface speeds of mountain glaciers on ...
Romain Millan +6 more
doaj +1 more source
Remote Sensing, 2022 Although measurements of thickness and internal structure of glaciers are substantial for the understanding of their evolution and response to climate change, detailed data about polythermal glaciers, are scarce.
Jānis Karušs +4 more
doaj +1 more source
Journal of Quaternary Science, EarlyView.ABSTRACT Like other perialpine basins and glaciated margins, the Geneva Basin in SW Switzerland is characterised by buried tunnel valleys, which are elongated incisions widely attributed to subglacial meltwater erosion beneath continental ice sheets. However, an inclusive understanding of the geological control on the evolution of the glacial landscape
Ovie Emmanuel Eruteya +2 more
wiley +1 more source
Journal of Quaternary Science, EarlyView.ABSTRACT The northern European distal cryptotephra framework is constantly developing both in terms of identification of new tephra horizons and improved age constraints for the already well‐established tephra marker horizons. However, many prehistoric tephra layers have only been dated by the radiocarbon method, with its inherent problems.
Maarit Kalliokoski +2 more
wiley +1 more source
Episodic Subglacial Drainage Cascades Below the Northeast Greenland Ice Stream
Geophysical Research Letters, 2023 Subglacial hydrology can exert an important control on ice flow by affecting friction at the ice‐bedrock interface. Here, we report on a series of subglacial drainage events along the Northeast Greenland Ice Stream (NEGIS), initiating as far inland as ...
J. K. Andersen +6 more
doaj +1 more source
From Highlands to Henge: Refining the Provenance and Transport Pathways of Stonehenge's Altar Stone
Journal of Quaternary Science, EarlyView.ABSTRACT The Altar Stone, the 6000 kg central sandstone megalith at Stonehenge in southern England, is suggested to have originated from the Orcadian Basin in northeast Scotland, some 700 km away. However, its source location within this large basin remains unresolved and its mode of transport uncertain.
Anthony J. I. Clarke +8 more
wiley +1 more source
Principles of Structural Glaciology [Book Review] [PDF]
, 1965 The title of this volume, although appropriate, is not really indicative of its content. It becomes more than a book on structural glaciology through its detailed treatment of many facets of glaciology, which the author defines as the science of ...
Sharp, Robert P.
core
Modelling intra-annual dynamics of a major marine-terminating Arctic glacier [PDF]
, 2017 Significant intra-annual variability in flow rates of tidewater-terminating Arctic glaciers has been observed in recent years. These changes may result from oceanic and/or atmospheric forcing through (1) perturbations at the terminus, such as enhanced ...
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Viscous contact problems in glaciology
, 2023 Viscous contact problems describe the time evolution of fluid flows in contact with a surface from which they can detach and reattach. They can be modelled by coupling the Stokes equations with contact boundary conditions and a free boundary equation ...
Gonzalez de Diego, Gonzalo
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