Characteristics of the horizontal and vertical distributions of dimethyl sulfide throughout the Amundsen Sea Polynya SCIE SCOPUS

Cited 9 time in WEB OF SCIENCE Cited 10 time in Scopus
Title
Characteristics of the horizontal and vertical distributions of dimethyl sulfide throughout the Amundsen Sea Polynya
Author(s)
Kim, Intae; Hahm, Doshik; Park, Keyhong; Lee, Youngju; Choi, Jung-Ok; Zhang, Miming; Chen, Liqi; Kim, Hyun-Cheol; Lee, SangHoon
KIOST Author(s)
Kim, In Tae(김인태)
Publication Year
2017-04-15
Abstract
We investigated horizontal and vertical distributions of DMS in the upper water column of the Amundsen Sea Polynya and Pine Island Polynya during the austral summer (January-February) of 2016 using a membrane inlet mass spectrometer (MIMS) onboard the Korean icebreaker R/V Aram. The surface water concentrations of DMS varied from <1 to 400 nM. The highest DMS (up to 300 nM) were observed in sea ice-polynya transition zones and near the Getz ice shelf, where both the first local ice melting.and high plankton productivity were observed. In other region5, high DMS concentration was generally accompanied by higher chlorophyll and Delta O-2/Ar. The large spatial variability of DMS and primary productivity in the surface water of the Amundsen Sea seems to be attributed to melting conditions of sea ice, relative dominance of Phaeocystis Antarctica as a DMS producer, and timing differences between bloom and subsequent DMS productions. The depth profiles of DMS and Delta O-2/Ar were consistent with the horizontal surface data, showing noticeable spatial variability. However, despite the large spatial variability, in contrast to the previous results from 2009, DMS concentrations and Delta O-2/Ar in the surface water were indistinct between the two major domains: the sea ice zone and polynya region. The discrepancy may be associated with inter-annual variations of phytoplankton assemblages superimposed on differences in sea-ice conditions, blooming period, and spatial coverage along the vast surface area of the Amundsen Sea. (C) 2017 Elsevier B.V. All rights reserved.
ISSN
0048-9697
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1251
DOI
10.1016/j.scitotenv.2017.01.165
Bibliographic Citation
SCIENCE OF THE TOTAL ENVIRONMENT, v.584, pp.154 - 163, 2017
Publisher
ELSEVIER SCIENCE BV
Subject
MELTING GLACIERS FUELS; PINE ISLAND GLACIER; SOUTHERN-OCEAN; PHYTOPLANKTON BLOOMS; ICE-SHELF; ANTARCTICA; WATERS; IRON; BIOGEOCHEMISTRY; DMS
Keywords
Dimethyl sulfide; Membrane inlet mass spectrometer; Amundsen Sea; Southern Ocean; Antarctic polynya
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER SCIENCE BV
Related Researcher
Research Interests

Chemical Oceanography,Environmental Radiochemistry,Environmental Chemistry,화학해양학,환경방사능화학,환경분석화학

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