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Ice streams regulate most ice mass loss in Antarctica. Determining ice stream response to warmer conditions during the Pliocene could provide insights into their future behaviour, but this is hindered by a poor representation of subglacial topography in ice-sheet models.
Dimethyl sulfide (DMS) and methanethiol (MeSH) are biologically co-produced marine volatile sulfur compounds, which play a critical role in climate-cooling aerosol formation. The spatio-temporal distributions of MeSH are poorly constrained, especially over the Southern Ocean.
The majority of islands surrounding the Antarctic continent are poorly characterized in terms of microbial macroecology due to their remote locations, geographical isolation and access difficulties. The 2016/2017 Antarctic Circumnavigation Expedition (ACE)…
Toward the poles, life on land is increasingly dominated by microorganisms, yet the evolutionary origin of polar microbiomes remains poorly understood. Here, we use metabarcoding of Arctic, sub-Antarctic…
One of the key components of this research has been the mapping of Antarctic bed topography and ice thickness parameters that are crucial for modelling ice flow and hence for predicting future ice loss and the ensuing sea level rise. Supported by the Scientific Committee on Antarctic Research (SCAR)…
Antarctic sea ice trends have to date been linked to surface winds, through sea ice motion and atmospheric thermal advection. This paper analyzes sea ice volume in 10 Coupled Model Intercomparison Project Phase 5 (CMIP5) model configurations under pre-industrial and historical climate forcings…
The success of IPY and the advent of Operation Ice Bridge, coupled with new developments in … technology are significantly contributing to our understanding of the Earth ice sheets. Here we … review radar sounding results from the recent campaigns in West and East Antarctica…
Data from a new regional airborne geophysical survey (ICECAP) has transformed our appreciation of the topography … and glaciology associated with the Aurora Subglacial Basin in East Antarctica. Using these data in conjunction … with numerical ice sheet modelling…
Aerogeophysical data obtained by the ICECAP project yield new insights into the basal … topography and evidence of new subglacial lakes within the Aurora Subglacial Basin, East … Antarctica. The new bed elevation map allows us to consider the flow paths of subglacial water.
The Aurora and Wilkes Subglacial Basins are major features of East Antarctica, containing significant regions below sea level. Before the International Polar Year (2007-9), the … extent and geology of the basins were poorly constrained by geophysical data. The IPY project…
In the light of the predicted global climate change, it is essential that the status and … diversity of polar microbial communities is described and understood. In the … present study, molecular tools were used to investigate the marine eukaryotic … communities of Prydz Bay, Eastern Antarctica…
On sub-Antarctic Macquarie Island, we examined pup weaning mass of southern elephant seals in relation to human presence. Pup weaning mass was previously found to be positively associated with 1st-year survivorship. Weaned pups were weighed in a remote area, Middle Beach…