首页|Research on submesoscale eddy and front near the South Shetland Islands (Antarctic Peninsula) using seismic oceanography data

Research on submesoscale eddy and front near the South Shetland Islands (Antarctic Peninsula) using seismic oceanography data

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  • 国家科技期刊平台
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The submesoscale processes, including submesoscale eddies and fronts, have a strong vertical velocity, can thus make important supplements to the nutrients in the upper ocean. Using legacy multichannel seismic data AP25 of cruise EW9101 acquired northeast of the South Shetland Islands (Antarctic Peninsula) in February 1991, we identified an oceanic submesoscale eddy with the horizontal scale of ～4 km and a steep shelf break front that has variable dip angles from 5o to 10o. The submesoscale eddy is an anticyclonic eddy, which carries warm core water, can accelerate ice shelves melting. The upwelling induced by shelf break front may play an important role in transporting nutrients to the sea surface. The seismic images with very high lateral resolution may provide a new insight to understand the submesoscale and even small-scale oceanic phenomena in the interior.

submesoscale eddyshelf break frontseismic oceanographySouth Shetland Islands

YANG Shun、SONG Haibin、ZHANG Kun

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School of Ocean and Earth Science,Tongji University,Shanghai 200092,China

State Key Laboratory of Marine Geology,Tongji University,Shanghai 200092,China

National Polar Special ProgramNational Polar Special Program国家自然科学基金National Key R&D Program of China

IRASCC 01-03-0101-03-02Grant 41976048Grant 2018YFC0310000

2022

10.13679/j.advps.2021.0004

极地科学进展(英文版)
中国极地研究中心,国家海洋局极地考察办公室 (Polar Research Institute of China, Chinese Arctic and Antarctic Administration)

极地科学进展(英文版)

CSCD
影响因子：0.145
ISSN：1674-9928
年,卷(期)：2022.33(1)
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