Results 71 to 80 of about 7,235 (213)

Influx of meltwater to subglacial Lake Concordia, East Antarctica [PDF]

Journal of Glaciology, 2005
AbstractWe present evidence for melting at the base of the ice that overlies Lake Concordia, an 800 km2 subglacial lake near Dome Concordia, East Antarctica, via a combination of glaciohydraulic melting (associated with the tilted ice ceiling and its influence on lake circulation/melting temperature) and melting by extreme strain heating (where the ice
Tikku, Anahita A., Bell, Robin E., Studinger, Michael, Clarke, Garry K.C., Tabacco, Ignazio, Ferraccioli, Fausto   +5 more
openaire   +4 more sources

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

A simplified mechanical model for explaining fast-rising jökulhlaups

Applications in Engineering Science, 2020
The paper describes a simplified mathematical model aimed at fitting available hydrographs of floods from subglacial lakes reaching their peak almost linearly in time, the so-called fast-risingjökulhlaups.
Benedetta Calusi, Angiolo Farina, Fabio Rosso   +2 more
doaj   +1 more source

Origin of Late Noachian‐Early Hesperian Valley Networks on Mars: Insights From Landform Evolution and Ice Sheet Modeling

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Dendritic valley networks on Mars have been cited as evidence for a warm and wet Noachian Mars, permitting rainfall precipitation and surface runoff. However, the climatic conditions required to sustain rainfall on early Mars remain debated.
K. R. Karpenko, J. L. Fastook, J. W. Head, A. D. Howard, C. I. Fassett, J. L. Dickson, K. E. Scanlon, B. D. Boatwright   +7 more
wiley   +1 more source

Reconstructing subglacial lake activity with an altimetry-based inverse method

Journal of Glaciology, 2023
Subglacial lake water-volume changes produce ice-elevation anomalies that provide clues about water flow beneath glaciers and ice sheets. Significant challenges remain in the quantitative interpretation of these elevation-change anomalies because the ...
Aaron G. Stubblefield, Colin R. Meyer, Matthew R. Siegfried, Wilson Sauthoff, Marc Spiegelman   +4 more
doaj   +1 more source

Putative Analogs of Pyrite Suns Forming in Proglacial Alaska Mudflats

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 5, May 2026.
Abstract Disc‐shaped pyrite suns of the Pennsylvanian age Anna Shale are thought to have formed where pressure restricted pyrite crystal growth to a flattened disc shape during diagenesis at the Anna Shale and the underlying Herrin coal boundary.
Heather L. Fair, Trinity L. Hamilton, Jeff R. Havig   +2 more
wiley   +1 more source

Thirteen years of subglacial lake activity in Antarctica from multi-mission satellite altimetry

Annals of Glaciology, 2018
The ability to detect the surface expression of moving water beneath the Antarctic ice sheet by satellite has revealed a dynamic basal environment, with implications for regional ice dynamics, grounding-line stability, and fluxes of freshwater and ...
Matthew R. Siegfried, Helen A. Fricker
doaj   +1 more source

Recent Advances in Our Understanding of the Role of Meltwater in the Greenland Ice Sheet System [PDF]

, 2017
Nienow, Sole and Cowton’s Greenland research has been supported by a number of UK NERC research grants (NER/O/S/2003/00620; NE/F021399/1; NE/H024964/1; NE/K015249/1; NE/K014609/1) and Slater has been supported by a NERC PhD studentshipPurpose of the ...
A Igneczi, A Mikkelsen, A Sole, A Sundal, AA Leeson, AAW Fitzpatrick, AG Fountain, AJ Tedstone, AJ Tedstone, AV Sundal, B Hallet, B Hasholt, B Hudson, B Kamb, BP Hubbard, C Charalampidis, C Koziol, C Miege, C Schoof, CC Clason, CE Bøggild, CF Dow, CF Dow, D As van, D Carroll, D Voytenko, DA Slater, DK Hall, DM Chandler, DM Chandler, DR Shapero, E Hanna, EM Enderlin, F Straneo, F Walter, FM Nick, GE Flowers, GH Gudmundsson, H Machguth, H Seroussi, HJ Zwally, I Bartholomew, I Joughin, I Joughin, I Joughin, IGM Wientjes, IJ Hewitt, IM Howat, IM Howat, J Fyke, J Harper, J Kingslake, JA Graly, JC Yde, JE Box, JR Hawkings, JT Andrews, K Echelmeyer, K Jezek, K Poinar, K Poinar, L Meire, LA Stevens, LC Andrews, LC Smith, M Tedesco, MA Werder, MG JA, MJ Hopwood, MJ Krawczynski, MP Bhatia, MP Lüthi, MR Broeke van den, N Selmes, NE Young, OV Sergienko, P Jansson, RJ Motyka, RL Hooke, RR Forster, RSW Wal van de, RSW Wal van de, S Gordon, S Hofer, S Sugiyama, SB Das, SH Doyle, SH Doyle, SH Doyle, SJ Palmer, SL Bevan, SL Greenwood, T Cowton, T Cowton, T Cowton, T Meierbachtol, T Moon, T Moon, T Phillips, TD James, TDL Irvine-Fynn, VW Chu, WT Pfeffer, X Fettweis   +103 more
core   +3 more sources

When the Past Matters: How Model Initialization Can Lead to Surprises in Long‐Term Simulations in Glaciated Environments

Hydrological Processes, Volume 40, Issue 4, April 2026.
Discharge simulated using the physics‐based, spatially distributed hydrological modelling approach varies during the overlapping period across different simulation lengths, attributed to model initialization and inability of state updating. ABSTRACT Hydrological simulations are crucial for understanding water resource changes and developing climate ...
Xinyang Fan, Bettina Schaefli, Florentin Hofmeister, Gabriele Chiogna   +3 more
wiley   +1 more source

Cordilleran Ice Sheet early deglaciation inferred from evolution of Late‐Pleistocene glacial Lake Dzulh Stun in east‐central British Columbia, Canada

Journal of Quaternary Science, Volume 41, Issue 3, Page 452-472, April 2026.
ABSTRACT We document the early decay of the Late‐Pleistocene Cordilleran Ice Sheet in the central portion of the Rocky and Cariboo Mountains and the Rocky Mountain Trench in east‐central British Columbia. Glacial lakes impounded at the eastern margin of the ice sheet occupied watersheds on the west flank of the central Rocky Mountains, leaving ...
Brendan G. N. Miller, John J. Clague, Andrée Blais‐Stevens   +2 more
wiley   +1 more source