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

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 Pen...

Full description

Bibliographic Details
Main Authors: Shun, Yang, Haibin, Song, Kun, Zhang
Format: Article in Journal/Newspaper
Language:English
Published: Polar Research Institute of China - PRIC 2022
Subjects:
Oceans
Antarctic
Antarctic Peninsula
South Shetland Islands
Advances in Polar Science
Antarc*
Ice Shelves
Polar Science
Online Access:http://library.arcticportal.org/2779/
http://library.arcticportal.org/2779/1/9--APS-2021-0004.pdf
Description
Summary: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.

Similar Items