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Coastal Antarctic ecosystems feature long periods of sea ice cover, strong seasonality in primary production, and low biodiversity relative to marginal ice zone regions. There are few records of annual cycles of biodiversity and abundance of neritic Antarctic zooplankton…
Allocation of energy is as important as energy uptake for maintaining healthy life cycles and sustainable populations of krill. Environmental factors such as temperature and food availability play important roles in the physiological performance of krill.
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.
The vertically integrated zonal momentum balance of the Antarctic Circumpolar Current (ACC) is dominated by wind stress at the surface and topographic form stress (TFS) at the bottom. It has been argued that wind stress is transferred from the surface to the bottom by transient baroclinic eddies…
Human influence on Antarctic marine ecosystems is a growing concern, despite limited … information being available. This study investigated the coastal meiofauna and environmental … parameters of 10 locations, 4 of which served as reference points (OB1, OB2, OB3, and McGrady)…
Global sea levels are rising due, in large part, to the increase in the rate of melting of ice sheets as a direct result of climate change. A large fraction of uncertainty in future sea level rise comes from limited understanding of basal conditions under ice sheets. Specifically…
settingsOrder Article Reprints … Open AccessReview … Unmanned Aerial Vehicles for Real-Time Vegetation Monitoring in Antarctica: A Review … by Kaelan Lockhart 1,2,*ORCID,Juan Sandino 1,2ORCID,Narmilan Amarasingam 3,4ORCID,Richard Hann 5ORCID,Barbara Bollard 3,4ORCID andFelipe Gonzalez 1…
Meridional winds over the seasonal ice zone of the Antarctic have undergone changes and likely contributed to sea ice extent variability in recent decades. In this study, using observations and an eddy-resolving channel model of the Antarctic seasonal ice zone…
Improving our understanding of the effects of satellite tags on large whales is a critical step in ongoing tag development to minimise potential health effects whilst addressing important research questions that enhance conservation management policy. In 2014…
During late March to early April 2019, the annual random stratified trawl survey (RSTS) around Heard Island and McDonald Islands (HIMI) was conducted in CCAMLR Division 58.5.2, with the completion of 150 stations. The survey was conducted on the FV Atlas Cove.
In this paper, we report on fish by-catch during exploratory fishing activities undertaken in Divisions 58.4.1 and 58.4.2 during the period 2014 to 2020. Fish by-catch comprised 12 species or groups of species. In 2019 and 2020, exploratory fishing occurred exclusively in research block 58.4.
In this paper, we report on fish bycatch during exploratory fishing activities undertaken in Divisions 58.4.1 and 58.4.2 during the period 2016 to 2022. Fish bycatch was composed of at least 14 species or species groups. In 2021 and 2022, exploratory fishing occurred in Division 58.4.2 only…
Physical features preserved in ice cores may provide unique records about past atmospheric variability. Linking the formation and preservation of these features and the atmospheric processes causing them is key to their interpretation as palaeoclimate proxies. We imaged ice cores from Law Dome…
Sea ice is a key habitat in the high latitude Southern Ocean and is predicted to change in its extent, thickness and duration in coming decades. The sea-ice cover is instrumental in mediating ocean…
Cosmic rays are charged particles whose flux observed at Earth shows temporal variations related to space weather phenomena and may be an important tool to study them. The cosmic ray intensity recorded with ground-based detectors also shows temporal variations arising from atmospheric variations.
Protoxylem plays an important role in the hydraulic function of vascular systems of both herbaceous and woody plants, but relatively little is known about the processes underlying maintenance of protoxylem function in long-lived tissues. In the present study…
Techniques are presented for generating thermal infrared and … visible composite images from cloud-free portions of MODIS … (MODerate resolution Imaging Spectroradiometer) images … closely spaced in time, with a focus on studies of landfast sea … ice along the East Antarctic coast.
This paper presents details of techniques for generating … thermal infrared and visible composite images from the … cloud-free portions of temporally closely spaced MODerate resolution … Imaging Spectroradiometer (MODIS) images…
Kinetic temperature profiles are retrieved from limb-emission radiance measurements of CO2 at 15 and 4.3 um … by the SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) instrument on the TIMED … (Thermosphere Ionosphere Mesosphere Energetics and Dynamics) satellite.
A climatological mean distribution for the surface water pCO2 over the global oceans in non-El Niño conditions has been constructed with spatial resolution of 4° (latitude) ×5° (longitude)…
The Global Muon Detector Network (GMDN) was … completed by installing a multi-directional cosmic-ray muon … hodoscope in Kuwait University in March 2006. The GMDN is … currently consisting of four multi-directional muon detectors … located at Nagoya (Japan), Hobart (Australia), Sao Martinho …