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Here we validate the Surface Water and Ocean Topography (SWOT) satellite mission sea surface height (SSH) products using an array of nine GNSS buoys at the long-term altimetry validation facility in Bass Strait. As a groundbreaking swath altimetry mission…
Dense water formation on the Antarctic continental shelf is the main process by which Antarctic Bottom Waters form and is fundamental to the abyssal overturning circulation. However…
Aim … Polar and alpine plants live at the edge of their physiological limits. Thus, relatively small changes in climate can have disproportionate effects on biological and ecological processes. Antarctic mosses display highly variable micro-topography (canopy architecture)…
A range of leaching protocols have been used to measure the soluble fraction of aerosol trace elements worldwide, and therefore these measurements may not be directly comparable.
The wave-affected Marginal Ice Zones (MIZ) is a key region of air-ice-ocean interactions in the Southern Ocean (SO). However, challenges still remain for the large-scale observation of the MIZ. In this study…
The Sea Ice Physico-Chemistry and Ecosystems 2024 (SLOPE2024) workshop was conducted in the Saroma-ko Lagoon, Hokkaido, Japan from the middle of February to the beginning of March 2024. The aim of SLOPE2024 was to study the physical, chemical…
Amphipods play an important role in Southern Ocean trophic chains. Considering the key role of Pacific Ocean and sea ice ecosystems in the Earth system and the growing impact of global environmental change, it is important to collect information on the status of marine amphipod biodiversity.
One of the principal factors influencing mass loss and sea level contribution from … the Antarctic Ice Sheet currently and in future centuries is the melting of ice … shelves by the ocean. These floating extensions of the ice sheet buttress against … ice-sheet movement…
Dense shelf water (DSW) overflows around Antarctica leads to the formation of antarctic bottom water, thereby driving the lower cell of global overturning circulation.
Two hydrographic voyages conducted 56 years apart (in 1963 and 2019) along 110°E in the southeast Indian Ocean reveal significant long-term changes in water mass properties. We focus on physical and biogeochemical changes in Subtropical Water (STW), Subantarctic Mode Water (SAMW)…
Observations of sea surface height (SSH) from the Surface Water and Ocean Topography (SWOT) satellite have demonstrated remarkable potential for resolving mesoscale and submesoscale ocean features, which are crucial for deriving vertical velocities…
The interaction of natural marine aerosol with clouds and radiation is a significant source of climate model uncertainty. The Southern Ocean represents a key area to understand these interactions, and a region where significant model biases exist.
Global chemistry–climate models (CCMs) play an important role in assessing the climate and air pollution implications of aerosols and chemically reactive gases.
Monitoring variability in predator diets can highlight key parameters for understanding and managing marine ecosystems. Penguin diets provide useful indicators of ecosystem variability and several species, including Adélie penguins (Pygoscelis adeliae)…
US and Australian researchers are collaborating to study how extreme, isolated environments in Antarctica affect health, using this research to develop and test new mental and physical health technologies for astronauts on long-duration space missions.
The Australian Antarctic Program (AAP) serves as a unique Earth-based analog for space travel, using its extreme, isolated environments to conduct research that directly supports long-duration human spaceflight. Studies focus on the long-term effects of confinement and isolation on human health…
Australian Antarctic Space Analogue: A research project using the Antarctic environment to study the effects of isolation, confinement, and extreme conditions on human physiology and psychology, relevant to long-duration spaceflight. Medical Model:
The mesosphere and lower thermosphere (MLT) comprise a highly variable region that forms the transition region between the middle and upper atmosphere.
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…
Gravity waves provide a key mechanism for the vertical transport of energy and momentum from the active near-surface weather to the upper reaches of the neutral and ionised atmosphere. Generation mechanisms vary between storms, fronts…
Blue whale and their subspecies is an endangered whale species that needs to be conserved by protecting their important habitat and migration corridor. Research about designing and modelling blue whale habitat for marine protected area has been done many times. However…
The use of satellite tags has yielded important information to better understand cetacean ecology and to improve cetacean conservation. However, tag deployment duration has been highly variable and typically shorter than their battery life on most large whale species. Between 2011 and 2018…
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.
Newly formed sea ice can incorporate considerable amounts of organic matter including phytoplankton during its freezing and growth. This initial incorporation influences the standing stocks of ice algae, a fundamental component of high-latitude marine ecosystems.