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The largest regional drivers of current surface elevation increases in the Antarctic Ice Sheet are associated with ice flow reconfiguration in previously active ice streams, highlighting the important role of ice dynamics in mass balance calculations. Here…
Antarctic geothermal heat flow (GHF) affects the thermal regime of ice sheets and simulations of ice and subglacial meltwater discharge to the ocean, but remains poorly constrained.
Overview of past and future climate change in Australia's area of responsibility in Antarctica, sub-Antarctic islands and Southern Ocean, and impacts of Antarctic changes upon the Australian mainland.
A major subglacial lake, Lake Snow Eagle (LSE), was identified in East Antarctica by airborne geophysical surveys. LSE, contained within a subglacial canyon, likely hosts a valuable sediment record of the geological and glaciological changes of interior East Antarctica.
Ice shelves affect the stability of ice sheets by supporting the mass balance of ice upstream of the grounding line. Marine ice, formed from supercooled water freezing at the base of ice shelves, contributes to mass gain and affects ice dynamics.
This study presents the first record of trifluoroacetic acid (TFA) in Antarctic ice cores, offering valuable data on TFA and its precursors' long-range atmospheric transport and deposition in remote polar regions. TFA is an ultra-short chain perfluoroalkyl acid (PFAA)…
Understanding basal processes across ice-sheet grounding lines is crucial in accurately modeling ice-sheet dynamics and estimating global sea-level rise. The grounding line, which demarcates the specific boundary between a grounded ice sheet and a floating ice shelf…
Vincennes Bay is a region of East Antarctica vulnerable to sub-ice shelf basal melting from warm ocean water intrusions. The sub-ice shelf bathymetry in this region is largely unknown, despite its importance for ocean dynamics within ice shelf cavities and associated sub-ice shelf basal melting.
Aim … To map presence, absence and ignorance of Antarctic seabird breeding occupancy at the spatial resolution of ice-free habitat sites to identify knowledge gaps and inform management and conservation. Location … East Antarctica between longitudes 30°?E and 150°?E.
Antarctica is currently losing net mass to the ocean primarily from West Antarctica and the Antarctic Peninsula, which together hold ~5.5?m of sea level rise potential. Yet, the East Antarctic Ice Sheet stores almost ten times more ice…
We present Bedmap3, the latest suite of gridded products describing surface elevation, ice-thickness and the seafloor and subglacial bed elevation of the Antarctic south of 60?°S. Bedmap3 incorporates and adds to all post-1950s datasets previously used for Bedmap2…
Understanding past climate is essential to our knowledge of how our current climate system operates, and how it might respond to future change. Techniques to reconstruct climate history are challenging, and both accuracy and certainty are hampered by the quality of the datasets used.
Under the recently adopted Kunming-Montreal Global Biodiversity Framework, 196 Parties committed to reporting the status of genetic diversity for all species. To facilitate reporting, three genetic diversity indicators were developed…
A computationally efficient algorithm to calculate the weighting coefficients required to evaluate derivatives for arbitrary multi-dimensional distributions of points is presented. The iterative algorithm guarantees IEEE 754 64-bit precision (at least 15 significant decimal digits)…
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)…
The Southern Ocean is disproportionately important in its effect on the Earth system, impacting climatic, biogeochemical, and ecological systems, which makes recent observed changes to this system cause for global concern.
In accordance with Article 6.3 of Annex V to the Protocol on Environmental Protection to the Antarctic Treaty, Australia has undertaken a five-yearly review of the management plan for Antarctic Specially Protected Area (ASPA) 102 Rookery Islands.
In accordance with Article 6.3 of Annex V to the Protocol on Environmental Protection to the Antarctic Treaty, Australia has undertaken a five-yearly review of the management plan for Antarctic Specially Protected Area (ASPA) 101 Taylor Rookery.
In accordance with Article 6.3 of Annex V to the Protocol on Environmental Protection to the Antarctic Treaty, Australia has undertaken a five-yearly review of the management plan for Antarctic Specially Protected Area (ASPA) 164 Scullin and Murray Monoliths.