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The fronts of the Antarctic Circumpolar Current (ACC) influence the growth and instability of eddies, eddy-mean flow interaction, and the development of submesoscale processes. We use in situ hydrography and directly measured velocity from a comprehensive shipboard survey of the Polar Front (PF)…
In the Indian sector of the Southern Ocean, 80°E marks an important transition in ocean circulation between the greater Prydz Bay gyre to the west and the Australian … Antarctic gyre to the east. Here, the submarine Kerguelen Plateau impedes the eastward flow of the Antarctic Circumpolar Current…
Deriving the snow depth on Antarctic sea ice is a key factor in estimating sea-ice thickness distributions from space or airborne altimeters. Using a linear regression to model snow depth from observed 'total freeboard'…
Simulations of the ocean dynamics in the cavity under the Amery Ice Shelf, Antarctica, were carried out using a three-dimensional numerical ocean model. Two different boundary conditions were used to describe the open ocean barotropic exchange at the ice front.
Reconstructing and modeling extent and dynamics of ice sheets is crucial in … understanding and predicting the evolution of ice sheets. Key to ice sheet dynamics are ice … streams, which drain most of the ice from the ice sheet interior to the ice shelves, where most of … the ice is lost.
Efficient digital phased array beams require a high resolution timing vector. The timing coefficients cause speed bottleneck … in FPGA implementation of such systems in the HF frequency range. Distributed Arithmetic (DA)…
Abstract - Timing resolution plays significant role in … generating digital phased array beams. In this paper we … present a latch method for FPGA implementation of digital … heamforming (DBF') for an ionospheric radar.
The Ice Station Polarstern (ISPOL) was a drifting ice station experiment in the western … Weddell Sea during November and December 2004.
The subsurface character and boundary conditions of the East Antarctic Ice Sheet (EAIS) remain largely unknown although they are critical to ice sheet modeling and our … understanding of the EAIS's role in global climate and sea level change.