Vertical distribution of the sound-scattering layer in the Amundsen Sea, Antarctica SCIE SCOPUS

Cited 1 time in WEB OF SCIENCE Cited 2 time in Scopus
Title
Vertical distribution of the sound-scattering layer in the Amundsen Sea, Antarctica
Author(s)
Lee, Hyungbeen; La, Hyoung Sul; Kang, Donhyug; Lee, SangHoon
KIOST Author(s)
Kang, Don Hyug(강돈혁)
Publication Year
2018-03
Abstract
Mid-trophic level at high-latitude coastal water in the Southern Ocean reside unique geographical condition with sea ice, coastal polynya, and ice shelf. To investigate the regional differences in their vertical distribution during summer, we examined acoustic backscatter data from scientific echo sounder, collected in the three representative regions in the Amundsen Sea: pack ice zone, coastal polynya zone, and ice shelf zone. The weighted mean depths (WMDs) representing zooplankton were calculated with the high resolution acoustic backscatter (1m depth) to identify the vertical variability of the sound-scattering layer (SSL). WMDs were mainly distributed between 50 and 130m exhibiting clear regional differences. The WMDs were detected in the shallow depth ranged between 48 and 84m within the pack ice and coastal polynya, whereas they were observed at deeper depths around near ice shelf ranged between 117 and 126 m. WMDs varied with changing the stratification of water column structure representing strong linear relationship with the mixed layer depth (r=0.69). This finding implies that understanding the essential forcing of zooplankton behavior will improve our ability to assess the coastal ecosystem in the Southern Ocean facing dramatic change.
ISSN
1873-9652
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1007
DOI
10.1016/j.polar.2017.12.003
Bibliographic Citation
POLAR SCIENCE, v.15, pp.55 - 61, 2018
Publisher
ELSEVIER SCIENCE BV
Subject
PINE ISLAND GLACIER; EUPHAUSIA-CRYSTALLOROPHIAS; SOUTHERN-OCEAN; MIXED-LAYER; WEST ANTARCTICA; WEDDELL SEA; ICE; KRILL; PHYTOPLANKTON; SHELF
Keywords
Sound-scattering layer (SSL); Acoustic backscatter; Weighted mean depth (WMD); Mixed layer depth; Amundsen Sea
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER SCIENCE BV
Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse