Results 51 to 60 of about 423 (178)
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
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
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
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
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
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
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]
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
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
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

