Results 51 to 60 of about 423 (178)

Palaeoglacier reconstruction and dynamics of Cordillera Vilcanota in the tropical high Peruvian Andes

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 2, February 2026.
We provide a geomorphological analysis of Cordillera Vilcanota and use morphostratigraphic principles to reconstruct palaeo icefield extent and palaeoglacier readvances, likely during the Antarctic Cold Reversal and Younger Dryas. We find evidence of temperate and polythermal ice margins, with limited glaciofluvial landform generation.
Bethan Davies   +11 more
wiley   +1 more source

Seasonal variations in proglacial lake area revealed by high spatial resolution planetscope satellite imagery

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 2, February 2026.
High‐resolution PlanetScope imagery reveals seasonal variations in proglacial lake area are underestimated by ~7% in moderate‐resolution data, while use of a single summer image can underestimate annual maximum area by ~2%. Capturing these seasonal variations provides valuable insights into the factors driving lake dynamics at Fjallsárlón, Iceland ...
Amelia Andrews   +3 more
wiley   +1 more source

Increased Glacier Melt Across Millennia to Hours Enhances Erosion and Sediment Export Processes

open access: yesJournal of Geophysical Research: Earth Surface, Volume 131, Issue 2, February 2026.
Abstract Glacial erosion and sediment evacuation are key in shaping polar and mountain landscapes and influencing downstream ecological and social systems. The glacier dynamics and hydrology responsible for these processes are closely linked to hydrological and climatic (hydro‐climatic) conditions.
Ian Delaney   +11 more
wiley   +1 more source

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

open access: yesRemote 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

Reduced Future Summer Water Availability in the Tien Shan Due To Glacier Wastage

open access: yesWater Resources Research, Volume 62, Issue 2, February 2026.
Abstract Glaciers in the Tien Shan mountains of Central Asia are a crucial source of freshwater for agriculture and local communities, sustaining over 100 million people in the region. Here, we project future water availability for this region by dynamically modeling the evolution of all glaciers and merging their runoff with hydrological runoff ...
Lander Van Tricht   +9 more
wiley   +1 more source

An integrated deep learning and object-based image analysis approach for mapping debris-covered glaciers

open access: yesFrontiers in Remote Sensing, 2023
Evaluating glacial change and the subsequent water stores in high mountains is becoming increasingly necessary, and in order to do this, models need reliable and consistent glacier data.
Daniel Jack Thomas   +5 more
doaj   +1 more source

Soft‐bedded ice sheet in hummocky terrain of north‐central Poland: Origin of rim ridges and subglacial processes

open access: yesSedimentology, Volume 73, Issue 2, Page 540-559, February 2026.
ABSTRACT Hummocky terrains are characterised by various geomorphological features that typically record processes associated with the downwasting of ice sheets. Common landforms in these areas include ramparts, linear ridges, kettle holes and ice‐walled lake plains.
Piotr Hermanowski   +4 more
wiley   +1 more source

Processes which Distribute Supraglacial Debris on the Khumbu Glacier, Nepal Himalaya [PDF]

open access: yesAnnals of Glaciology, 1986
The thickness of supraglacial debris on the Khumbu Glacier, Nepal Himalaya, has been mapped by a combination of direct measurements and morphological and lithological studies. All three processes, englacial, supraglacial, and subglacial, must be considered in establishing the distribution of debris.
M. Nakawo   +3 more
openaire   +1 more source

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

open access: yesGeosciences, 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   +6 more
doaj   +1 more source

Morphology of Antarctic Polygons and Implications for Polygon Evolution and Subsurface Ice Dynamics

open access: yesPermafrost and Periglacial Processes, Volume 37, Issue 1, Page 143-153, January/March 2026.
ABSTRACT Polygonal terrain results from thermal contraction, is commonly found in periglacial environments, and serves as a valuable proxy for interpreting subsurface ice distribution and climate history on Earth and Mars. In this study, we investigate the morphology of polygons in Beacon Valley, Antarctica, to assess the relationship between polygon ...
Rachael H. Hoover   +4 more
wiley   +1 more source

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