Modeling Mesoscale Eddies Generated Over the Continental Slope, East Antarctica

نویسندگان

چکیده

Mesoscale eddies are abundant over the Antarctic continental slope, with potential to regulate water masses transport, mixing, and energy transfer. Over relatively cold fresh shelf regions around margins, in absence of dense overflows, baroclinic instability Slope Current is still favorable generation mesoscale eddies. However, barely observed due sparsity situ hydrographic observations. Based on an idealized eddy-resolving coupled ocean-ice model, this study investigates characteristics corresponding influences local properties East Antarctica. With aid automated eddy detection algorithm, bowl-shaped identified from simulated velocity vector geometry. The Cyclonic Eddies (CE) has a barotropic vertical structure extending more than 2,500 m depth, while shear Anticyclonic (AE) strong at upper 200 layer. can trap southern flank slope front flow offshore warm saline region. Therefore, not only governed by polarities but also eddy-induced heat salt transport.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

REAL - TIME MESOSCALE MODELING OVER ANTARCTICA The Antarctic Mesoscale Prediction System

NOVEMBER 2003 AMERICAN METEOROLOGICAL SOCIETY | L ogistical and scientific operations in Antarctica are critically dependent on numerical weather guidance. The extreme, unforgiving environment amplifies the risks stemming from poor forecasts, while the sparse observing network often leaves forecasters heavily reliant on numerical weather prediction (NWP). To the operation of real-time mesoscale...

متن کامل

Modeling Of Selected Continental Slope Processes

The objectives of this project are to: (1) Characterize the effect of spatial variations in deposition and erosion on the fluid flow, pore pressures and thus the stability of continental slope sediments. (2) Constrain the impact of individual turbidity currents on seafloor evolution. (3) Develop a technique for correlating stratigraphy complicated by spatial variations in sedimentation, erosion...

متن کامل

Observations of Boundary Mixing Over the Continental Slope

Towed-body observations of mixing over the continental slope reveal the great lateral extent (several km) of continuously turbulent fluid within a few hundred meters of the boundary at 1600 m depth. The largest turbulent dissipation rates were observed over a 5 km horizontal region near a slope critical to the M2 internal tide. Averaged over a submarine landslide oriented perpendicularly to the...

متن کامل

Late Quaternary fluctuations of biogenic component fluxes on the continental slope of the Ross Sea, Antarctica

A sediment core, collected from the western part of the continental slope of the Ross Sea at 2380 m water depth, records Ž . 230 events of the last two climatic cycles 250 kyr . A Th -based chronology was obtained and boundaries of the isotope ex stages were set assuming that biological productivity was enhanced during periods of less ice cover. Then, Th0 , organic ex carbon, biogenic silica an...

متن کامل

Mesoscale eddies transport deep-sea sediments

Mesoscale eddies, which contribute to long-distance water mass transport and biogeochemical budget in the upper ocean, have recently been taken into assessment of the deep-sea hydrodynamic variability. However, how such eddies influence sediment movement in the deepwater environment has not been explored. Here for the first time we observed deep-sea sediment transport processes driven by mesosc...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Frontiers in Earth Science

سال: 2022

ISSN: ['2296-6463']

DOI: https://doi.org/10.3389/feart.2022.916398