Results 61 to 70 of about 289 (174)

Discrepancy in Satellite Altimetry Products Hinders Robust Retrieval of GIA Signals From Bedrock GNSS Data in Greenland

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Isolating glacial isostatic adjustment (GIA) signals from Global Navigation Satellite System (GNSS) observations of vertical land motion (VLM) in Greenland requires removal of elastic solid Earth response to contemporary ice mass change. This elastic correction depends on ice‐surface elevation changes derived from satellite altimetry and firn ...
Holly Kyeore Han, Surendra Adhikari, Lambert Caron, Hui Gao, Parviz Ajourlou, Shfaqat Khan, Beata M. Csatho   +6 more
wiley   +1 more source

Observing change in glacier flow by using optical satellites

, 2018
In the last couple of years many Earth observation satellites with optical instruments have been set in space. These satellites generate an enormous amount of data and give us a image of different landforms on Earth.
Altena, Bas
core   +1 more source

Dark Land Surfaces Allow for Refugia That Could Support Photosynthetic Life on the Surface of Snowball Earth

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 13, 16 July 2026.
Abstract Photosynthetic eukaryotic algae survived the Neoproterozoic Snowball Earth events, indicating that liquid‐water refugia existed somewhere on the surface. We examine the potential for refugia at the coldest time of a snowball event, before CO2 had risen and with high‐albedo ice on the frozen ocean, before it became darkened by dust deposition ...
Greta E. M. Shum, Marysa M. Laguë, Abigail L. S. Swann, Cecilia M. Bitz, Edwin D. Waddington, Stephen G. Warren   +5 more
wiley   +1 more source

Impacts of glacier retreat, greening, and a changing sediment supply on debris flows in contrasting monsoon‐dominated Himalayan climates

Earth Surface Processes and Landforms, Volume 51, Issue 7, July 2026.
We modified the SedCas model to assess how glacier retreat, vegetation growth, and sediment availability and erosion timing affect debris flow activity in Langtang and Mustang, Nepal. Results reveal that landscape change reduces sediment supply and runoff response, making debris flows smaller and less seasonally concentrated under future conditions ...
Varvara O. Bazilova, Jacob Hirschberg, Leon Duurkoop, Tjalling de Haas, Walter Immerzeel   +4 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

Instruments and Methods Instrumented Probes for Deep Glacial Investigations

, 1968
Thermal probes can carry instrumentation packages into polar ice sheets for geophysical investigations and long-term observations by remote measurement methods. They are self-contained surface-controlled devices. The development work at U.S.
Haldor W. C. Aamot
core   +1 more source

Deglaciation of the Burren glacio‐karst, western Ireland, during Termination 1: Implications for North Atlantic climate and karstification

Journal of Quaternary Science, Volume 41, Issue 5, Page 702-715, July 2026.
ABSTRACT The Burren uplands in western Ireland form one of the most extensive and best‐preserved examples of glacio‐karst in Europe. Subsumed by the Irish ice sheet during the Late Pleistocene, granite erratic boulders and in situ silica veins in the limestone bedrock provide a rare opportunity to reconstruct the timing and rate of deglaciation ...
Gordon Bromley, Colin Bunce, Brenda Hall, Aaron Putnam, Frank McDermott   +4 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

Capturing the Multi‐Decadal Evolution of Glacier–Permafrost Interactions in a High‐Alpine Environment (Ritord, Western Swiss Alps)

Permafrost and Periglacial Processes, Volume 37, Issue 3, Page 473-497, July/September 2026.
ABSTRACT This study investigates the multi‐decadal evolution of a glacier forefield under permafrost conditions in the Combins Massif (western Swiss Alps). A multi‐method approach based on historical and recent datasets is used to analyze its landform components.
Julie Wee, Hanne Hendrickx, Sebastián Vivero   +2 more
wiley   +1 more source