Results 51 to 60 of about 546 (164)
A model of water extraction from the subglacial hydrologic system under idealized conditions [PDF]
The CryosphereSubglacial water modulates glacier velocity across a wide range of space and time scales by influencing friction at the glacier bed. Observations show ice acceleration due to supraglacial lake drainage and water draining through moulins, where both ...
C. R. Meyer +4 more
doaj +1 more source
Coarse Sediment Transport in a Near‐Terminus Subglacial Channel
Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.Abstract We present the first large‐sample, spatially resolved measurements of coarse sediment transport within a subglacial meltwater channel. We released 324 radio‐tagged pebbles into a near‐terminus channel of Glacier d’Otemma, Switzerland, and monitored their positions through 10–50 m of ice during the mid to late melt season.
Matt Jenkin +5 more
wiley +1 more source
Subglacial hydrology at Rink Isbræ, West Greenland inferred from sediment plume appearance
Annals of Glaciology, 2016 Marine-terminating outlet glaciers discharge most of the Greenland ice sheet's mass through frontal ablation and meltwater runoff. While calving can be estimated by in situ and remote sensing observations, submarine melting and subglacial meltwater ...
Kristin M. Schild +2 more
doaj +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
Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 7, July 2026.Abstract Global warming is amplified in the Arctic, accelerating glacier melt and freshwater runoff. At tidewater glaciers, runoff typically enters fjords at depth and generates buoyancy‐driven circulation that enhances glacier‐ocean exchanges of energy and matter, influencing macronutrient delivery and marine primary production.
Andreas Alexander +19 more
wiley +1 more source
Stable Sediment Plumes Despite Tidewater Glacier Retreat in a South Greenland Fjord
Journal of Geophysical Research: Oceans, Volume 131, Issue 7, July 2026.Abstract Tidewater glaciers play a critical role in ice sheet mass loss and fjord hydrography, as meltwater runoff volume and injection depth can influence sediment transport, fjord circulation, and fjord stratification. As tidewater glaciers retreat and transition from marine‐ to land‐terminating, the impacts of shifting meltwater delivery depth on ...
Sydney J. N. Baratta +5 more
wiley +1 more source
Journal of Geophysical Research: Earth Surface, Volume 131, Issue 7, July 2026.Abstract Understanding the basal conditions of East Antarctica's outlet glaciers is critical for accurately modeling future ice‐sheet evolution. Denman Glacier, one of the continent's fastest‐flowing glaciers, has been identified in bed‐topography models as occupying the deepest continental trough on Earth, potentially acting as a major outlet of the ...
Maria Constanza Manassero +8 more
wiley +1 more source
Historical Records of Nutrient Loading Into End‐Member Mid‐Latitude Lakes
Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 7, July 2026.Abstract Human‐induced environmental changes impact lakes in temperate regions, but detailed lake basin histories that pre‐date instrumental records are limited. Most paleolimnological reconstructions are used to examine single lakes in isolation, making it difficult to separate regional forcings from morphological influences on a sedimentary signal ...
M. A. Brannon +3 more
wiley +1 more source
A fast and simplified subglacial hydrological model for the Antarctic Ice Sheet and outlet glaciers [PDF]
The CryosphereWe present a novel and computationally efficient subglacial hydrological model that represents in a simplified way both hard- and soft-bed rheologies, as well as an automatic switch between efficient and inefficient subglacial discharge, designed for ...
E. Kazmierczak +4 more
doaj +1 more source
Boreas, Volume 55, Issue 3, Page 612-669, July 2026.We present a 25‐stage reconstruction of the ice‐flow pattern evolution of the Scandinavian Ice Sheet based on mapping and analysis of ~240 000 subglacial lineations and lineation fields across Norway, Sweden, Finland, and parts of NW Russia. Our reconstruction uses a glacial geomorphological inversion approach, in which we generated 611 individual ...
Frances E. G. Butcher +9 more
wiley +1 more source