Results 71 to 80 of about 5,522 (216)

Proglacial erosion rates and processes in a glacierized catchment in the Swiss Alps [PDF]

, 2018
In the Swiss Alps, climatic changes have not only caused glacier retreat, but also likely increased sedimentation downstream of glaciers. This material either originates from below the glacier or from periglacial environments, which are exposed as ...
Bolstad P, Fabris M, James M, Meyer‐Peter E, Morris G, Schiefer E   +5 more
core   +1 more source

SHIMP The subglacial hydrology model intercomparison Project

, 2018
ISSN:0022 ...
de Fleurian, Basile, Werder, Mauro; id_orcid0000-0003-0137-9377, Beyer, Sebastian, Brinkerhoff, Douglas J., Delaney, Ian A., Dow, Christine F., Downs, Jacob, Gagliardini, Olivier, Hoffman, Matthew J., Hooke, Roger L., Seguinot, Julien; id_orcid0000-0002-5315-0761, Sommers, Aleah N.   +11 more
openaire   +2 more sources

Ice Sheet Dynamics Drive Pronounced Changes in the Subsurface Freshwater‐Saltwater Interface

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Saltwater is migrating into freshwater aquifers globally with water quality and biogeochemical implications, yet saltwater intrusion in glaciated regions is sparsely investigated. Field observations suggest that groundwater head in glaciated systems is influenced by ice sheet forcings and provides evidence that seawater infiltrated into ...
Julia A. Guimond, Aaron A. Mohammed, Barret L. Kurylyk, Michelle A. Walvoord, Victor F. Bense   +4 more
wiley   +1 more source

The impact of supraglacial debris on proglacial runoff and water chemistry [PDF]

, 2019
Debris is known to influence the ablation, topography and hydrological systems of glaciers. This paper determines for the first time how these influences impact on bulk water routing and the proglacial runoff signal, using analyses of supraglacial and ...
Black, A. R., Brock, B. W., Diolaiuti, G., Fyffe, C. L., Kirkbride, M. P., Smiraglia, C.   +5 more
core   +3 more sources

Anisotropic Melt Inclusions as a Confounding Signal for Ice‐Penetrating Radar Observations

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Ice‐penetrating radar is a powerful geophysical tool for understanding the subsurfaces of Earth, Mars, and icy moons. Radar reflectivity, attenuation, and birefringence are used to infer subsurface hydrology, englacial temperature, water content, and crystal orientation fabric.
A. H. Cheng, D. M. Schroeder, N. S. Wolfenbarger, R. Shaper, C. Seltzer, B. Hills   +5 more
wiley   +1 more source

Greenland ice sheet annual motion insensitive to spatial variations in subglacial hydraulic structure [PDF]

, 2014
We present ice velocities observed with global positioning systems and TerraSAR-X/TanDEM-Xin a land-terminating region of the southwest Greenland ice sheet (GrIS) during the melt year 2012–2013, toexamine the spatial pattern of seasonal and annual ice ...
A. J. Sole, A. J. Tedstone, Andersen, Andrews, Bartholomew, Bartholomew, Chandler, Cowton, Doyle, Fitzpatrick, Harbor, Hoffman, Hubbard, Iken, Joughin, Mair, Meierbachtol, Morlighem, N. Gourmelen, Nienow, P. W. Nienow, Palmer, Parizek, Paul, Röthlisberger, Schoof, Sharp, Shreve, Sole, Sole, Stocker, Sugiyama, Sundal, Tedstone, Wal, Werder, Zwally   +36 more
core   +2 more sources

Radar Specularity Content Indicates a Strong Geothermal Heat Flow Gradient in Antarctica's South Pole Basin

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Accurate estimates of geothermal heat flow (GHF) are critical for predicting basal melting and identifying stable sites for ancient ice, yet GHF remains one of the least constrained boundary conditions for the Antarctic Ice Sheet. We evaluate nine published Antarctic GHF models against radar‐derived specularity content in the South Pole Basin (
M. Kerr, D. A. Young, S. Yan, C. Pierce
wiley   +1 more source

Simulating seasonal evolution of subglacial hydrology at a surging glacier in the Karakoram

Journal of Glaciology
Glacier motion, retreat and glacier hazards such as surges and glacial lake outburst floods (GLOFs) are likely underpinned by subglacial hydrology. Recent advances in subglacial hydrological modeling allow us to shed light on subglacial processes that ...
Neosha G. Narayanan, Aleah N. Sommers, Winnie Chu, Jakob F. Steiner, Muhammad Adnan Siddique, Colin R. Meyer, Brent Minchew   +6 more
doaj   +1 more source

A fast and simplified subglacial hydrological model for the Antarctic Ice Sheet and outlet glaciers [PDF]

The Cryosphere
We 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, T. Gregov, T. Gregov, V. Coulon, F. Pattyn   +4 more
doaj   +1 more source

Mass-conserving subglacial hydrology in the Parallel Ice Sheet Model version 0.6 [PDF]

Geoscientific Model Development, 2015
We describe and test a two-horizontal-dimension subglacial hydrology model which combines till with a distributed system of water-filled, linked cavities which open through sliding and close through ice creep.
E. Bueler, W. van Pelt
doaj   +1 more source