Results 51 to 60 of about 441 (165)

Glacier Mass Balance Modeling Using a Long Short‐Term Memory Network

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract Glacier mass balance (MB) is a key indicator of climate change and a central driver of glacier evolution, yet most glaciers worldwide lack long‐term in situ measurements. For estimating glacier MB, data‐driven models provide a complementary alternative to traditional numerical approaches by learning empirical relationships between climate ...
Marijn van der Meer, Harry Zekollari, Alban Gossard, Kamilla Hauknes Sjursen, Jordi Bolibar, Matthias Huss, Daniel Farinotti   +6 more
wiley   +1 more source

Using climate reanalysis data in conjunction with multi-temporal satellite thermal imagery to derive supraglacial debris thickness changes from energy-balance modelling

Journal of Glaciology, 2021
Surface energy-balance models are commonly used in conjunction with satellite thermal imagery to estimate supraglacial debris thickness. Removing the need for local meteorological data in the debris thickness estimation workflow could improve the ...
Rebecca L. Stewart, Matthew Westoby, Francesca Pellicciotti, Ann Rowan, Darrel Swift, Benjamin Brock, John Woodward   +6 more
doaj   +1 more source

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

Cosmic Dust Flux During the Quaternary: The Record of Large Scoriaceous and Unmelted Micrometeorites From the Transantarctic Mountains Collection

Journal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.
Abstract We estimate the cosmic dust flux to Earth through the study of rare micrometeorites that preserve part of their precursor features during atmospheric entry heating, namely unmelted and scoriaceous subtypes. Combining high‐precision mass balance measurements, X‐ray computed microtomography and scanning electron microscopy, we studied mass, size
S. Ottaviani, L. Folco, M. D. Suttle, R. Repič, L. Mancini, T. Battiston, S. Iannini Lelarge, M. Masotta   +7 more
wiley   +1 more source

Reduced West Antarctic Ice Sheet Size During Prominent Quaternary Interglacials Constrained by Iceberg‐Rafted Debris Provenance in the Amundsen Sea

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract The stability of the West Antarctic Ice Sheet (WAIS) remains a major uncertainty in sea‐level projections, and geologic records provide important constraints on its past behavior. We present 40Ar/39Ar ages of biotite and hornblende grains from iceberg‐rafted debris (IRD) in two Amundsen Sea sediment cores (PC493 and PS58/254), located south ...
Patric Simões Pereira, Claus‐Dieter Hillenbrand, Sidney R. Hemming, James W. Marschalek, Rob Larter, James A. Smith, Gerhard Kuhn, Tina van de Flierdt   +7 more
wiley   +1 more source

Climate Warming and Ice Weakening Trigger Alpine Glacier Collapses: The Marmolada Case

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The rapid retreat of temperate mid‐latitude glaciers due to global warming causes dramatic mass loss and increases their instability. Using a synthesis of thermodynamic and mechanical laws, we constructed a three‐dimensional stability model and applied it in the analysis of the collapse of a portion of the Marmolada Glacier in northeastern ...
Carlo Baroni, Chiara Frassi, Maria Cristina Salvatore, Nicola M. Pugno, Luca Carturan, Andrea Berton, Alberto Bellin   +6 more
wiley   +1 more source

Elevation Change Rates of Glaciers in the Lahaul-Spiti (Western Himalaya, India) during 2000–2012 and 2012–2013

Remote Sensing, 2016
Previous studies have shown contrasting glacier elevation and mass changes in the sub-regions of high-mountain Asia. However, the elevation changes on an individual catchment scale can be potentially influenced by supraglacial debris, ponds, lakes and ...
Saurabh Vijay, Matthias Braun
doaj   +1 more source

Alaska‐Yukon Glacier Depths From a Decade of Airborne Radar Sounding

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 6, June 2026.
Abstract NASA's Operation IceBridge employed airborne radar sounders in Alaska and adjacent northwestern Canada between 2012 and 2021 to measure the thickness of the region's glaciers. Here we present the first comprehensive analysis of these data, analyzing ∼31,700 linear‐km of radar profile data to provide over 5,500 linear‐km of ice thickness and ...
B. S. Tober, M. S. Christoffersen, J. W. Holt, M. Truffer, C. F. Larsen   +4 more
wiley   +1 more source

The Decline of a Caldera‐Filling Glacier at Volcán Sollipulli, Chile

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 6, June 2026.
Abstract Southern Andean glaciers have undergone fast retreat in recent decades. This results in reduced freshwater storage, contribution to sea‐level rise, and locally to the formation of glacial lakes, that may pose the risk of glacial lake outburst floods (GLOFs).
J. E. Arndt, M. Somos, S. Navas, D. Farías‐Barahona, A. Rivera, H. Xie, A. Fernández   +6 more
wiley   +1 more source

Using ArcticDEM to Analyse the Dimensions and Dynamics of Debris-Covered Glaciers in Kamchatka, Russia

Geosciences, 2018
On the Kamchatka Peninsula, a number of glaciers are covered by thick volcanic debris, which makes their margins difficult to delineate from satellite imagery. Fortunately, high resolution, multi-temporal digital surface models (DSMs) covering the entire
Iestyn D. Barr, Mikhail D. Dokukin, Ioannis Kougkoulos, Stephen J. Livingstone, Harold Lovell, Jakub Małecki, Anton Y. Muraviev   +6 more
doaj   +1 more source