Results 81 to 90 of about 5,522 (216)
Predicting potential Arctic kelp distribution and lower‐depth biomass from seafloor irradiance
Abstract Kelps have an extensive distribution in Arctic coastal waters. However, quantifying their role in the Arctic food web and carbon cycle is challenged by the scarcity of documented geographical distribution, standing stocks and production. Here we present a framework based on an empirical function to predict the potential kelp distribution and ...
Laura Castro de la Guardia +13 more
wiley +1 more source
Workshop - Amundsen Sea Embayment Tectonic and Glacial History - Programme and Abstracts [PDF]
Overall Objective: Review existing data and identify priorities for future geoscience research (terrestrial, marine and airborne) in the Amundsen Sea embayment (ASE) region required to develop a better understanding of the past, present and future ...
Anderson, John B. +3 more
core
High basal melting forming a channel at the grounding line of Ross Ice Shelf, Antarctica [PDF]
Antarctica's ice shelves are thinning at an increasing rate, affecting their buttressing ability. Channels in the ice shelf base unevenly distribute melting, and their evolution provides insight into changing subglacial and oceanic conditions.
Catania, Ginny +6 more
core +1 more source
Accelerating subglacial hydrology for ice sheet models with deep learning methods
Subglacial drainage networks regulate the response of ice sheet flow to surface meltwater input to the subglacial environment. Simulating subglacial hydrology evolution is critical to projecting ice sheet sensitivity to climate, and contribution to sea-level change.
Vincent Verjans, Alexander Robel
openaire +2 more sources
ABSTRACT This study examines the impact of geological, marine and anthropogenic sources on metal and metalloid concentrations in the forefields of four glaciers (Ecology, Sphinx, Tower and Windy) on King George Island, Antarctic. Water samples were collected at the beginning and end of the hydrological season (austral summer, December 2021 to February ...
Joanna Potapowicz +8 more
wiley +1 more source
Bedgap – where next for Antarctic subglacial mapping? [PDF]
The recently published Bedmap2 datasets mark the culmination of several decades of subice and subocean Antarctic topographic surveying by many nations, but maps of the topographic data distribution show that in the global context, the Antarctic bed ...
Pritchard, Hamish
core +2 more sources
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
Anomalous luminescence of subglacial sediment at Haut glacier d'Arolla, Switzerland - a consequence of resetting at the glacier bed? [PDF]
<p>Luminescence has the potential to elucidate glacial geomorphic processes because primary glacial sediment sources and transport pathways are associated with contrasting degrees of exposure to light.
Aitken +53 more
core +2 more sources
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
Origin and significance of 'dispersed facies' basal ice: Svínafellsjökull, Iceland [PDF]
Dispersed facies basal ice - massive (i.e. structureless) ice with dispersed debris aggregates - is present at the margins of many glaciers and, as a product of internal glacial processes, has the potential to provide important information about the ...
Darrel A. Swift +10 more
core +3 more sources

