Detection and attribution of Antarctic climate change
The current understanding of climate changes that have occurred in the last 50 years over Antarctica is presented with a focus on: (i) a summer warming of the eastern Antarctic […]
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Read more of: Detection and attribution of Antarctic climate change
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Efficient flowline simulations of ice-shelf/ocean interactions: Sensitivity studies with a fully coupled model
Read more of: Efficient flowline simulations of ice-shelf/ocean interactions: Sensitivity studies with a fully coupled modelThermodynamic flowline and plume models for the ice-shelf/ocean system simplify the ice and ocean dynamics sufficiently to allow extensive exploration of parameters affecting ice-sheet stability while including key physical processes. […]
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East Antarctica’s Achilles heel
Read more of: East Antarctica’s Achilles heelThe East Antarctic ice sheet is believed to be Earth’s most stable ice sheet. Changes in geochemical composition of offshore sediments suggest that its margin repeatedly retreated by at least […]
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Corticosterone mediated costs of reproduction link current to future breeding
Read more of: Corticosterone mediated costs of reproduction link current to future breedingLife-history theory predicts that costs are associated with reproduction. One possible mediator of costs involves the secretion of glucocorticoid hormones, which in birds can be measured in feathers grown during […]
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The search for seismic signatures of movement at the glacier bed in a polythermal valley glacier
Read more of: The search for seismic signatures of movement at the glacier bed in a polythermal valley glacierA passive seismology experiment was conducted across the main overdeepening of Storglaciaren in the Tarfala valley, northern Sweden, to investigate the spatial and temporal distribution of basal microseismic waveforms in […]
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Tropical convective transport and the Walker circulation
Read more of: Tropical convective transport and the Walker circulationWe introduce a methodology to visualise rapid vertical and zonal tropical transport pathways. Using prescribed sea-surface temperatures in four monthly model integrations for 2005, we characterise preferred transport routes from […]
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A climatology of strong wind events at McMurdo station, Antarctica
Read more of: A climatology of strong wind events at McMurdo station, AntarcticaThe first climatology of strong wind events (SWEs) at McMurdo station, Antarctica based on the in situ observations and reanalysis fields is presented. SWEs occur throughout the year, but with […]
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Global statistical evidence for chorus as the embryonic source of plasmaspheric hiss
Read more of: Global statistical evidence for chorus as the embryonic source of plasmaspheric hissThe origin of plasmaspheric hiss, the electromagnetic emission responsible for the gap between the inner and outer radiation belts, has been debated for over four decades. Recently, a new theory […]
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Remotely induced warming of Antarctic Bottom Water in the eastern Weddell gyre
Read more of: Remotely induced warming of Antarctic Bottom Water in the eastern Weddell gyreFour repeat hydrographic sections across the eastern Weddell gyre at 30°E reveal a warming (by ~0.1°C) and lightening (by ~0.02–0.03 kg m−3) of the Antarctic Bottom Water (AABW) entering the […]
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The taxonomy and palaeobiogeography of small chorate dinoflagellate cysts from the Late Cretaceous to Quaternary of Antarctica
Read more of: The taxonomy and palaeobiogeography of small chorate dinoflagellate cysts from the Late Cretaceous to Quaternary of AntarcticaSmall chorate dinoflagellate cysts are common in Upper Cretaceous to Quaternary sedimentary successions around the Antarctic margin. Taxonomic confusion surrounding dinoflagellate cysts and acritarchs of similar morphology throughout the southern […]
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Mesoproterozoic subduction under the eastern edge of the Kalahari-Grunehogna Craton preceding Rodinia assembly: the Ritscherflya detrital zircon record, Ahlmannryggen (Dronning Maud Land, Antarctica)
Read more of: Mesoproterozoic subduction under the eastern edge of the Kalahari-Grunehogna Craton preceding Rodinia assembly: the Ritscherflya detrital zircon record, Ahlmannryggen (Dronning Maud Land, Antarctica)The ∼2000 m thick clastic and volcaniclastic sedimentary rock pile of the Mesoproterozoic Ritscherflya Supergroup is located near the eastern margin of the Archaean Grunehogna Craton of Dronning Maud Land […]
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Transmission electron microscope analysis of virus-like particles in the freshwater lakes of Signy Island, Antarctica
Read more of: Transmission electron microscope analysis of virus-like particles in the freshwater lakes of Signy Island, AntarcticaWater samples from a range of fresh-water Antarctic lakes on Signy Island (South Orkney Islands: 60°45′S, 45 °38′W) were examined for the presence of virus-like particles (VLPs) during the 1998/1999 field […]