Results 51 to 60 of about 3,604 (203)
Short-term Antarctic ice-sheet dynamics during the late Oligocene
Communications Earth & EnvironmentPalaeoceanographic records spanning the Oligocene provide insights into Antarctic ice-sheet dynamics in a world warmer-than-today, allowing us to improve future climate projections linked to global warming.
Layla Creac’h +6 more
doaj +1 more source
Scientific Reports, 2023 The liquid water around the Antarctic Ice Sheet plays a key role in modulating both the vulnerability of ice shelves to hydrofracturing and ice discharge from outlet glaciers.
Shuntaro Hata +2 more
doaj +1 more source
Geostandards and Geoanalytical Research, EarlyView.Key Points Triple oxygen isotope ratios of two primary (VSMOW, SLAP) and twelve secondary water isotopic reference materials were precisely measured using BrF5 fluorination‐IRMS. The measured Δ'17OVSMOW value for SLAP (34 ± 6 per meg) demonstrates that VSMOW‐SLAP normalisation ensures interlaboratory comparability, but introduces systematic offsets for
Ryoji Tanaka +2 more
wiley +1 more source
A model of the Antarctic Ice Sheet
Deep Sea Research Part B. Oceanographic Literature Review, 1982 Numerical modelling of ice sheets and glaciers has become a useful tool in glaciological research. A model described here deals with the vertical mean ice velocity, is time dependent, computes bedrock adjustment and uses an empirical diagnostic relationship to derive the distribution of ice thickness in ice shelves.
openaire +3 more sources
Journal of Fish Biology, EarlyView.Abstract We used an ecological niche theory framework integrating physiological and behavioural ecology to understand interspecific differentiation of juveniles of four Antarctic fishes: Trematomus bernacchii, Trematomus pennellii, Trematomus nicolai and Pagothenia borchgrevinki.
Amanda J. Frazier +5 more
wiley +1 more source
Cenozoic tropical carbonate platforms in the Santos Basin, SE Brazilian Margin
Sedimentology, EarlyView.ABSTRACT Tropical carbonate platforms accompanied the latitudinal shifts of the tropical belt throughout the Cenozoic. Their flat‐topped geometries were influenced by a specific set of processes, including climate and sea‐level changes, carbonate facies, tectonics and continental runoff.
Mateus Gama +5 more
wiley +1 more source
Antarctic Ice Sheet fertilises the Southern Ocean [PDF]
Biogeosciences, 2013 Abstract. Southern Ocean (SO) marine primary productivity (PP) is strongly influenced by the availability of iron in surface waters, which is thought to exert a significant control upon atmospheric CO2 concentrations on glacial/interglacial timescales. The zone bordering the Antarctic Ice Sheet exhibits high PP and seasonal plankton blooms in response ...
Death, R. +7 more
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Antarctic-wide annual ice flow maps from Landsat 8 imagery between 2013 and 2019
International Journal of Digital Earth, 2021 Ice velocity constitutes a key parameter for quantifying ice-sheet discharge rates and is thus crucial for improving the coupled models of the Antarctic ice sheet towards accurately predict its contribution to future global sea-level rise.
Qiang Shen +6 more
doaj +1 more source
Comparison and analysis of CryoSat DEM and the several Antarctic DEM
地质科技通报, 2021 Antarctica is covered by huge snow and ice, and its geological structure is bounded by the Trans-Antarctic Mountains, and is generally divided into the East Antarctic Shield and the West Antarctic Active Zone.
Wenli Yue +4 more
doaj +1 more source
The glacial geomorphology of the Antarctic ice sheet bed [PDF]
Antarctic Science, 2014 AbstractIn 1976, David Sugden and Brian John developed a classification for Antarctic landscapes of glacial erosion based upon exposed and eroded coastal topography, providing insight into the past glacial dynamics of the Antarctic ice sheets. We extend this classification to cover the continental interior of Antarctica by analysing the hypsometry of ...
Jamieson S +7 more
openaire +3 more sources