Results 51 to 60 of about 199,741 (195)

Brief communication: Heterogenous thinning and subglacial lake activity on Thwaites Glacier, West Antarctica [PDF]

The Cryosphere, 2020
A system of subglacial lakes drained on Thwaites Glacier from 2012–2014. To improve coverage for subsequent drainage events, we extended the elevation and ice-velocity time series on Thwaites Glacier through austral winter 2019.
A. O. Hoffman, K. Christianson, D. Shapero, B. E. Smith, I. Joughin   +4 more
doaj   +1 more source

Sustained retreat of the Pine Island Glacier [PDF]

, 2013
We use satellite observations to show that, between 1992 and 2011, the Pine Island Glacier hinge line retreated at a rate of 0.95 ± 0.09 km yr−1 despite a progressive steepening and shoaling of the glacier surface and bedrock slopes, respectively, which ...
Vaughan, D. G., Gourmelen, N., Kim, S. W., Wingham, D. J., Shepherd, A., Park, J. W.   +5 more
core   +1 more source

Hydrological controls on diurnal ice flow variability in valley glaciers [PDF]

, 2005
This paper uses a combination of field data and three-dimensional modeling to investigate the spatial variability in basal conditions required to induce observed fluctuations in diurnal ice velocity at Haut Glacier d'Arolla, Switzerland.
Hubbard, A. L., Sharp, M. J., Chandler, D. M., Mair, D. W. F., Nienow, P. W., Willis, I. C., Hubbard, B. P.   +6 more
core   +1 more source

A unified model for transient subglacial water pressure and basal sliding

Journal of Glaciology, 2022
Changes in water pressure at the beds of glaciers greatly modify their sliding rate, affecting rates of ice mass loss and sea level change. However, there is still no agreement about the physics of subglacial sliding or how water affects it.
Victor C. Tsai, Laurence C. Smith, Alex S. Gardner, Helene Seroussi   +3 more
doaj   +1 more source

An energy-balance model for debris-covered glaciers including heat conduction through the debris layer [PDF]

, 2010
Extensive covers of supraglacial debris are often present in glacier ablation areas, and it is essential to assess exactly how the debris affects glacier melt rates.
Brock, B.W., Reid, Tim, Ben W. Brock, Reid, T.D., Brock, Benjamin, Tim D. Reid   +5 more
core   +1 more source

Measuring glacial channel hydrology

, 2021
Glacier hydrology describes water movement around, on, in and under glaciers. It plays an important role for glacier flow and thus ice transport into the sea and the associated sea level rise.
Alexander, Andreas
core   +1 more source

The contribution of glacier melt to streamflow

Environmental Research Letters, 2012
Ongoing and projected future changes in glacier volume and extent globally have led to concerns about the implications for water supplies. Glacier contributions to river discharge are not well known on a regional or global basis, nor are the populations ...
Neil Schaner, Nathalie Voisin, Bart Nijssen, Dennis P Lettenmaier   +3 more
doaj   +1 more source

Isotope Hydrograph Separation Reveals Rainfall on the Glaciers Will Enhance Ice Meltwater Discharge to the Himalayan Rivers

Water Resources Research
The Indian Summer Monsoon (ISM) and meltwater from the Himalayan are the two most important sources of water in the Indian subcontinent. However, the impact of ISM on Himalayan glaciers and subsequent stream hydrology remains largely unknown.
Nita Roy, Indra S. Sen, Soumita Boral, Tanuj Shukla, Vinoj Velu   +4 more
doaj   +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

Over-winter persistence of supraglacial lakes on the Greenland Ice Sheet: results and insights from a new model

Journal of Glaciology, 2020
We present a newly developed 1-D numerical energy-balance and phase transition supraglacial lake model: GlacierLake. GlacierLake incorporates snowfall, in situ snow and ice melt, incoming water from the surrounding catchment, ice lid formation, basal ...
Robert Law, Neil Arnold, Corinne Benedek, Marco Tedesco, Alison Banwell, Ian Willis   +5 more
doaj   +1 more source