A5053556940- Arctic and Antarctic ice dynamics
- Cryospheric studies and observations
- Geology and Paleoclimatology Research
- Landslides and related hazards
- Winter Sports Injuries and Performance
- Oceanographic and Atmospheric Processes
- Methane Hydrates and Related Phenomena
Kangwon National University
2023
Korea Polar Research Institute
2012-2015
Abstract The exchange of warm, salty seawater across the continental shelves off West Antarctica leads to subsurface glacial melting at interface between ocean and Antarctic Ice Sheet. One mechanism that contributes cross-shelf transport is Ekman induced by along-slope currents over slope shelf break. An investigation this process applied Amundsen Sea shelfbreak region, using recently acquired historical field data guide analyses. Along-slope were observed transects eastern western reaches...
Abstract The circulation pathways and subsurface cooling freshening of warm deep water on the central Amundsen Sea shelf are deduced from hydrographic transects four moorings. continental is intersected by Dotson trough (DT), leading outer to basins inner shelf. During measurement period, was observed flow southward eastern side DT in approximate geostrophic balance. A northward outflow also along bottom western DT. Estimates rate suggest that up one-third inflowing leaves area below...
Abstract Mooring data from the western flank of Dotson trough, Amundsen Sea shelf region, show presence barotropic oscillations with a period 40–80 h. The are visible in velocity, temperature, salinity, and pressure comparable to tides magnitude. corresponds topographic Rossby waves low group velocity wavelength about 40 km, that is, half-width channel. It is suggested these resonant cause observed peak wave spectra. observations sparse CTD this region should be treated caution need...
The Cook Glacier drains a significant portion of the Wilkes Subglacial Basin, largest subglacial basin in East Antarctica—which feeds Ice Shelf. ice velocity Shelf needs to be monitored precisely and accurately, as it plays critical role determining discharge from Basin. In this study, we measured annual velocities using offset tracking technique on Sentinel-1 synthetic aperture radar images obtained 2017 2022. Time-series offsets range azimuth directions were determined pairs with temporal...