A5060129070- Arctic and Antarctic ice dynamics
- Geology and Paleoclimatology Research
- Oceanographic and Atmospheric Processes
- Cryospheric studies and observations
- Methane Hydrates and Related Phenomena
- Climate variability and models
- Marine and coastal ecosystems
- Atmospheric and Environmental Gas Dynamics
- Geological Studies and Exploration
- Winter Sports Injuries and Performance
- Heart Rate Variability and Autonomic Control
- Aerospace Engineering and Energy Systems
- Handwritten Text Recognition Techniques
- Food Industry and Aquatic Biology
- Biomedical and Chemical Research
- Biofield Effects and Biophysics
- Geomagnetism and Paleomagnetism Studies
- Ergonomics and Musculoskeletal Disorders
- Skin Protection and Aging
- Ocean Acidification Effects and Responses
- Image Processing and 3D Reconstruction
- Sleep and Work-Related Fatigue
- Adolescent Sexual and Reproductive Health
- Optical measurement and interference techniques
- Balance, Gait, and Falls Prevention
University of Tasmania
2023-2025
Australian Antarctic Division
2023-2025
Australian Centre for Excellence in Antarctic Science
2023-2025
Hokkaido University
2020-2024
National Institute of Polar Research
2022-2024
Kogakuin University
2024
Scripps Institution of Oceanography
2024
University of California, San Diego
2024
Tokyo University of Marine Science and Technology
2022
Hokkaido University of Science
2022
Poleward expansion of the Antarctic Circumpolar Current warms continental margin.
The Totten Glacier in East Antarctica, with an ice volume equivalent to >3.5 m of global sea-level rise, is grounded below sea level and, therefore, vulnerable ocean forcing. Here, we use bathymetric and oceanographic observations from previously unsampled parts the continental shelf reveal on-shelf warm water pathways defined by deep topographic features. Access Ice Shelf (TIS) cavity facilitated a break, broad depression on shelf, cyclonic circulation that carries inner troughs provide...
Full-depth hydrographic sections of the BROKE experiment in 1996 (across Antarctic margin from 80 to 150°E; Bindoff et al., 2000) were revisited for first time during 2018/2019 austral summer. We describe subsurface physical oceanography 2019 and changes between not documented earlier studies. The survey captured decadal ocean structure southern flank Circumpolar Current (ACC) continental shelves. In five cross-slope meridional sections, where measurements are comparable (112, 120, 128, 140,...
Dense, cold waters formed on Antarctic continental shelves descend along the margin, where they mix with other Southern Ocean to form Bottom Water (AABW). AABW then spreads into deepest parts of all major ocean basins, isolating heat and carbon from atmosphere for centuries. Despite AABW’s key role in regulating Earth’s climate long time scales recording conditions, remains poorly observed. This lack observational data is mostly due two factors. First, originates shelf slope situ...
Abstract Melting ice shelves around Antarctica control the massive input of freshwater into ocean and play an intricate role in global heat redistribution. The Amery Ice Shelf regulates wintertime sea-ice growth dense shelf water formation. We investigated warm Antarctic Surface Water melting its impact on water. Here we show that coastal summer 2016/17 was almost free, leading to higher surface temperatures. glacial meltwater fraction highest record, hypothesised be attributable anomalous...
Abstract The advent of under‐ice profiling float and biologging techniques has enabled year‐round observation the Southern Ocean its Antarctic margin. These data are often overlooked in widely used oceanographic datasets, despite their importance understanding seasonality role sea ice changes, water mass formation, glacial melt. We develop a monthly climatology (south 40°S above 2,000 m) using Data Interpolating Variational Analysis, which excels multi‐dimensional interpolation consistent...
Objectives: Wheelchair seat sagging is hypothesized to increase pressure and shear forces, potentially leading injuries. The objective of this study was assess the impact correcting wheelchair on ischial pressure, force, posture in a population healthy adults. Methods: Twenty-four adults, meeting specific anthropometric requirements for proper fit, were recruited. Participants evaluated under two conditions: with base correction (With Correction) without it (No Correction). Correction...
Abstract The Antarctic continental margin supplies the densest bottom water to global abyss. From late twentieth century, an acceleration in long-term freshening of Bottom Waters (AABW) has been detected Australian-Antarctic Basin. Our latest hydrographic observations reveal that, 2010s, trend reversed broadly over slope. Near-bottom salinities 2018–2019 were higher than during 2011–2015. Along 170° E, salinity increase between 2011 and 2018 was greater that observed west. layer thickness...
Abstract The climatological structure of the subpolar cyclonic circulation off East Antarctica is delineated with Argo float data from past decade. Up to 40% profiles in seasonal ice zone have been without satellite positioning. We refined their position as following bathymetry get appropriate positions continental margin. error terrain‐following interpolation was estimated by using positioned be 23 ± 27 (78 70) km for 90 (390) day period. Profiles under‐ice period shorter than 360 days are...
Abstract To quantitatively assess the inorganic carbon cycle in eastern Indian sector of Southern Ocean (80–150°E, south 60°S), we measured ocean surface temperature, salinity, total alkalinity (TA), partial pressure dioxide (pCO 2 ), and concentrations chlorophyll‐ a (chl dissolved (DIC), nutrients during KY18 survey (December 2018–January 2019). The sea–air CO flux this region was −8.3 ± 12.7 mmol m −2 day −1 (−92.1 to +10.6 ). therefore weak sink. Based on DIC TA temperature minimum...
Abstract Warm, salty Circumpolar Deep Water (CDW) is recognized as the primary driver for Antarctic glacial melt, but mechanism by which it reaches continental shelves remains highly uncertain from an observational standpoint. With scarcity of eddy flux estimation in margin, we quantify isopycnal diffusivity CDW using hydrographic variability and satellite altimetry under mixing length framework. For comparison, spiciness thickness are used tracers, two tracers yield qualitatively similar...
The interbasin exchange between the Sea of Okhotsk and North Pacific governs intermediate water ventilation fertilization nutrient-rich subpolar Pacific, thus has an enormous influence on Pacific. However, mechanism this is puzzling; current studies have not explained how western boundary (WBC) subarctic intrudes only partially into Okhotsk. High-resolution models often exhibit unrealistically small exchanges, as WBC overshoots passing by deep straits does induce flows. Therefore, partial...
Abstract The recent discovery of warm ocean water near the Totten Ice Shelf (TIS) has increased attention to Sabrina Coast in East Antarctica. We report result 6‐day helicopter‐based observations conducted during 61st Japanese Antarctic Research Expedition (JARE61), revealing (0.5–1°C) occupying a large previously unsampled area (116.5°E−120°E) below 550–600 m. Along TIS front, we observe modified Circumpolar Deep Water (mCDW) well above freezing (∼−0.7°C), consistent with previous work....
Abstract To clarify the impacts of basal melting Antarctic ice sheet and biological productivity on biogeochemical processes in coastal waters, concentrations dissolved inorganic carbon (DIC), total alkalinity (TA), nutrients, chlorophyll a , stable oxygen isotopic ratios (δ 18 O) were measured from offshore slope to front Totten Ice Shelf (TIS) during spring/summer 2018, 2019, 2020. Modified Circumpolar Deep Water (mCDW) intruded onto continental shelf off TIS flowed along bathymetric...
In East Antarctica, warm ocean water travels toward the Totten Ice Shelf. This melts and thins ice shelf, speeds up rate at which moves into sea, leading to sea-level rise. Scientists often get on board ships called icebreakers study in these regions. However, sea icebergs are major obstacles navigation scientific operations. For example, American, Australian, Japanese tried but could only observe a small area where was more broken up. So, we used helicopter measure during one of our...
This paper presents a new method for identifying individuals using 2-dimensional joint coordinate data of periodic motion estimated with OpenPose. The proposed approach includes normalization technique depth-invariance and dissimilarity function lag-invariance that utilizes complex Fourier coefficients. To demonstrate the effectiveness method, experiments were conducted videos taken simultaneously at different depths.