Results 61 to 70 of about 2,309 (175)

Mechanisms of Surface Meltwater Ponding and Drainage on the Greenland Ice Sheet Revealed Using SkySat Imagery and Deep Learning

AGU Advances, Volume 7, Issue 2, April 2026.
Abstract Surface meltwater impacts Greenland Ice Sheet mass balance indirectly by reducing albedo and promoting hydrofracture. However, fully understanding both processes requires accurate mapping of small‐scale features such as ponds, channels, and moulins that govern meltwater formation and drainage. Here we investigate surface water dynamics at high
J. C. Ryan, R. T. Datta, S. W. Cooley
wiley   +1 more source

Signal characteristics of surface seismic explosive sources near the West Antarctic Ice Sheet divide

Journal of Glaciology
Seismic imaging in 3-D holds great potential for improving our understanding of ice sheet structure and dynamics. Conducting 3-D imaging in remote areas is simplified by using lightweight and logistically straightforward sources.
Marianne S. Karplus, Nori Nakata, Galen M. Kaip, Steven H. Harder, Lucia F. Gonzalez, Adam D. Booth, Emma C. Smith, Stephen A. Veitch, Jacob I. Walter, Poul Christoffersen   +9 more
doaj   +1 more source

Air temperature variability over three glaciers in the Ortles-Cevedale (Italian Alps): Effects of glacier fragmentation, comparison of calculation methods, and impacts on mass balance modeling [PDF]

, 2015
Glacier mass balance models rely on accurate spatial calculation of input data, in particular air temperature. Lower temperatures (the so-called glacier cooling effect), and lower temperature variability (the so-called glacier damping effect) generally ...
Carturan, L., Cazorzi, Federico, Dalla Fontana, G., De Blasi, F.   +3 more
core   +3 more sources

Terrestrial Regulation of Lacustrine Hg Deposition During Glacial‐Interglacial Cycles

Paleoceanography and Paleoclimatology, Volume 41, Issue 4, April 2026.
Abstract Mercury (Hg) is a toxic trace metal. It is clear that its natural cycle has been highly disturbed by human activities, but there remains much to understand about how it operated before these perturbations. For example, the influences of glacial‐interglacial climate changes on the geochemical cycle of environmental Hg remain poorly understood ...
Alice R. Paine, Joost Frieling, Bernd Wagner, Alexander Francke, Jack H. Lacey, Tamsin A. Mather, Stuart A. Robinson, David M. Pyle   +7 more
wiley   +1 more source

Automatic measurement of glacier ice ablation using thermistor strings

Journal of Glaciology, 2019
In this work we tested the suitability of thermistor strings as automatic tools for the continuous measurement of glacier ice ablation. Experimental data collected in summer 2017 over an Italian glacier provided ice ablation readings with accuracy ...
L. CARTURAN, F. CAZORZI, G. DALLA FONTANA, T. ZANONER   +3 more
doaj   +1 more source

A novel tilt sensor for studying ice deformation: application to streaming ice on Jarvis Glacier, Alaska

Journal of Glaciology, 2020
We developed a tilt sensor for studying ice deformation and installed our tilt sensor systems in two boreholes drilled close to the shear margin of Jarvis Glacier, Alaska to obtain kinematic measurements of streaming ice.
Ian R. Lee, Robert L. Hawley, Steven Bernsen, Seth W. Campbell, David Clemens-Sewall, Christopher C. Gerbi, Kate Hruby   +6 more
doaj   +1 more source

Changes in Imja Tsho in the Mount Everest Region of Nepal [PDF]

, 2014
Imja Tsho, located in the Sagarmatha ( Everest) National Park of Nepal, is one of the most studied and rapidly growing lakes in the Himalayan range. Compared with previous studies, the results of our sonar bathymetric survey conducted in September of ...
Byers, A. C., McKinney, D. C., Rounce, D. R., Somos-Valenzuela, M. A.   +3 more
core   +2 more sources

Late‐Holocene evolution of a small Sub‐Arctic glacier, Gljúfurárjökull (Tröllaskagi, northern Iceland)

Boreas, Volume 55, Issue 2, Page 356-383, April 2026.
Gljúfurárjökull, located on the Tröllaskagi Peninsula in northern Iceland, is a small glacier approximately 3.8 km in length. This study analyses the glacier's evolution through a combination of methods including: (i) geomorphological mapping, (ii) Cosmic‐Ray Exposure (CRE) dating, (iii) lichenometry and (iv) palaeoglacier reconstruction (volume ...
Nuria Andrés, José M. Fernández‐Fernández, David Palacios, Irene Schimmelpfennig, Leopoldo G. Sancho, Skafti Brynjólfsson, Þorsteinn Sæmundsson, Wesley R. Farnsworth, Luis M. Tanarro, Mariano Brito, Javier Santos‐González, Rosa B. González‐Gutiérrez, ASTER Team (Georges Aumaître, Karim Keddadouche)   +13 more
wiley   +1 more source

Instruments and methods: hot-water borehole drilling at a high-elevation debris-covered glacier

Journal of Glaciology, 2019
While hot-water drilling is a well-established technique used to access the subsurface of ice masses, drilling into high-elevation (≳ 4000 m a.s.l.) debris-covered glaciers faces specific challenges. First, restricted transport capacity limits individual
Katie E. Miles, Evan S. Miles, Bryn Hubbard, Duncan J. Quincey, Ann V. Rowan, Mark Pallett   +5 more
doaj   +1 more source

Stratigraphic evidence for modern‐like glacier extents in south‐central Alaska within the last glacial period (MIS 3)

Boreas, Volume 55, Issue 2, Page 476-502, April 2026.
The last (Wisconsinan) glacial period was punctuated in North America by two glacial maxima, known as the Early and Late Wisconsinan glaciations. In Alaska, these maxima and their subsequent retreats have been the object of dating efforts to reconstruct local climatic events and compare them to global trends.
Bruno Belotti, Elizabeth J. Cassel, Timothy C. Bartholomaus, Michael G. Loso, Michael S. Christoffersen, John W. Holt   +5 more
wiley   +1 more source