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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.
Human-caused climate change worsens with every increment of additional warming, although some impacts can develop abruptly. The potential for abrupt changes is far less understood in the Antarctic compared with the Arctic, but evidence is emerging for rapid…
Continent-continent collisions develop mature orogenic systems over tens of millions of years, creating a thermally weakened mid-crustal infrastructure layer (15–50 km deep) that flows laterally from the thickened mountain ranges or plateaus.
Understanding the dispersion of floating objects and ocean properties at the ocean surface is crucial for various applications, including oil spill management, debris tracking and search and rescue operations. While mesoscale turbulence has been recognized as a primary driver of dispersion…
The spreading of dense shelf water (DSW) from Antarctic coastal margins to lower latitudes plays a vital role in the ocean thermohaline circulation and the global climate system. Through enhanced localized sea ice production in Antarctic coastal polynyas…
The ecosystem approach to fisheries has been discussed since the 1980s. It aims to reduce risks from fisheries to whole, or components of, ecosystems, not just to target species. Precautionary approaches further aim to keep the risk of damage to a low level. Here…
Poa annua is the most widespread alien species in the sub-Antarctic, occurring on all major island groups and is invasive and spreading on the Antarctic Peninsula. P. annua colonises areas disturbed by human activity, seal wallows, penguin rookeries and glacial moraines.
A marked bend in the Hawaiian-Emperor seamount chain supposedly resulted from a recent major … reorganization of the plate-mantle system there 50 million years ago. Although alternative mantledriven … and plate-shifting hypotheses have been proposed…
When ice sheets melt, and reduce the load on the surface of the Earth, the … land areas beneath them bounce back up. New, accurate observations are … needed to investigate this uplift and its implications effectively.
A newsurfacewave seismic tomography model of Australia is presented which provides a means of investigating … the lithospheric structure beneath the Proterozoic regions in the west, north and centre of the … continent with improved resolution and reliability.
The Lambert Glacier region of East Antarctica encompasses the proposed boundary between three of the ancient continents that … formed East Gondwana: Indo-Antarctica, the central East Antarctic Craton and a proposed extension of the Pinjarra Orogen of … Australia.
Seismic anisotropy is investigated across the previously unstudied region of central East Antarctica including new coastal locations and remote, temporary stations far inland.
Earthquakes occur in Antarctica. The previously held notion that Antarctica is … essentially aseismic has been disproved by using records from established Global … Seismic Network stations and recently deployed temporary stations on the Antarctic … continent. However…
A conceptual, lithospheric-scale cross-section of the conjugate, oblique-slip margins of George V Land, East … Antarctica, and southeast Australia (Otway Basin) has been constructed based on the integration of seismic and sample … data.