Results 101 to 110 of about 2,939 (220)

The Impact of Subglacial Drainage System Evolution and Glacier Lake Outburst on Arctic Fjord Macronutrient Dynamics

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, Livia Piermattei, Philipp Assmy, Andrea L. Popp, Ken Zhao, Nicolas Valiente, Guy D. Tallentire, Simon Filhol, Thomas V. Schuler, Ugo Nanni, Jack Kohler, Louise S. Schmidt, Léo Decaux, George Cowie, Allison Bailey, Riko Noormets, Pierre‐Marie Lefeuvre, Claire S. Earlie, Maarja Kruusmaa, Andy Hodson   +19 more
wiley   +1 more source

The Causes and Implications of Microstructures in Glacial Sediments [PDF]

, 1998
This thesis examines how microstructures in glaciogenic sediments reflect the processes forming them, and how these microstructures then affect the conditions around them, through a series of field studies, laboratory tests, models, and statistical ...
Evans, Andrew John, Evans, A.J.
core  

Evolution of drainage system morphology at a land-terminating Greenland outlet glacier [PDF]

, 2013
This work was funded by the UK Natural Environment Research Council (through grants to Nienow, Mair, and Wadham, and a studentship to Bartholomew), the Edinburgh University Moss Centenary Scholarship (Cowton and Bartholomew), and a Carnegie Research ...
Bartholomew, Ian, Mair, Doug, Nienow, Peter, Mair, Douglas Watson Fraser, Lis, Greg, Sole, Andrew, Wadham, Jemma, Chandler, David, Chandler, Dave, Cowton, Tom   +9 more
core   +1 more source

Impacts of subglacial processes on underlying bedrock [PDF]

, 2019
Historically, the field of glacial geology has put much focus on the processes within the subglacial environment, their effects on unconsolidated sediments and the landforms they produce.
Juliusson, Oscar
core  

Crack wave resonances within the basal water layer

Annals of Glaciology, 2019
Hydraulic processes within and beneath glacial bodies exert a far-reaching control on ice flow through their influence on basal sliding. Within the subglacial system, rapid changes in these processes may excite resonances whose interpretation requires an
Dominik Gräff, Fabian Walter, Bradley P. Lipovsky   +2 more
doaj   +1 more source

Supraglacial Lake Drainage: from process puzzle to subglacial diagnostic

Supraglacial lake drainages are isolated events that deliver the largest observable fluxes of surface melt to the ice-sheet bed. This talk will present advances in the study of these lake drainages, through which we piece together an empirical understanding of glacier hydrology.
Stevens, LA, Banwell, AF, Behn, MD, Chase, DL, Das, SB, Dell, RL, Falconer, E, Joughin, IR, Lai, C-Y, Larochelle, S, Lu, GJ, McGuire, JJ, Nettles, M, Okal, M, Rines, J, Willis, IC   +15 more
openaire   +1 more source

Analysis of long-term dynamic changes of subglacial lakes in the Recovery Ice Stream, Antarctica [PDF]

The Cryosphere
The dynamic activity of subglacial lakes plays a crucial role in modulating glacial processes and the mass balance of the Antarctic ice sheet. The Recovery Ice Stream (RIS), projected to experience significant mass loss in East Antarctica during coming ...
T. Feng, T. Feng, H. Dong, H. Dong, Y. Chen, Y. Chen, T. Hao, T. Hao   +7 more
doaj   +1 more source

Antarctic subglacial hydrology: application of CryoSat-2 swath altimetry to the study of active subglacial lakes [PDF]

The Antarctic ice sheet is primarily drained by fast-flowing ice streams and glaciers, with water at the ice sheet's base believed to be a crucial factor in maintaining their high velocity through reduced friction.
Malczyk, George R.
core   +1 more source

Variability in ice motion at a land-terminating Greenlandic outlet glacier: the role of channelized and distributed drainage systems

Journal of Glaciology, 2016
We use a combination of field observations and hydrological modelling to examine the mechanisms through which variability in meltwater input affects ice motion at a land-terminating Greenlandic outlet glacier. We find a close agreement between horizontal
TOM COWTON, PETER NIENOW, ANDREW SOLE, IAN BARTHOLOMEW, DOUGLAS MAIR   +4 more
doaj   +1 more source

Insights into glacial processes from micromorphology of silt-sized sediment [PDF]

The Cryosphere
Silt-rich meltwater plume deposits (MPDs) analyzed from marine sediment cores have elucidated relationships that are clearly connected, yet difficult to constrain, between subglacial hydrology, ice-marginal landforms, and grounding-zone retreat patterns ...
A. P. Lepp, L. E. Miller, J. B. Anderson, M. O'Regan, M. C. M. Winsborrow, J. A. Smith, C.-D. Hillenbrand, J. S. Wellner, L. O. Prothro, E. A. Podolskiy   +9 more
doaj   +1 more source