여름철 남극 아문젠 폴리냐에서 표층 DMS분포 연구
-
Title
- 여름철 남극 아문젠 폴리냐에서 표층 DMS분포 연구
-
Alternative Title
- Distribution of surface dimethyl sulfide in the Amundsen Sea during Summer
-
Author(s)
- 박기홍; 김인태; 최정옥; 함도식
- KIOST Author(s)
- Kim, Intae(김인태)
-
Alternative Author(s)
- 김인태
-
Publication Year
- 2018-10-22
-
Abstract
- Dimethyl sulfide (DMS) is one of major precursors of cloud condensation nuclei and predominantly emitted from the ocean. Particularly, during austral summer, the Southern Ocean is the strongest source of DMS due to the phaeocystis blooms. Therefore, accurate estimate of DMS emission in the Southern Ocean is essential to understand interaction between climate and ocean environment. However, despite the importance of DMS flux estimate in the Southern Ocean, DMS measurements inthe Southern Ocean are significantly under-sampled due to its limited accessibility.
Polynyas in the coastal shelf region exhibit strong productivity. Especially, Amundsen Sea polynya has been reported as the strongest productivity regionamong the polynyas in the Southern Ocean. Thus, DMS emission from the Amundsen Sea Polynya is noticeably strong as well. Furthermore, high-frequency measurement is required to improve accuracy of the flux estimate because of large spatio-temporal variability of phytoplankton distribution in the polynya. In this study, Korean icebreaking vessel R/V Araon’s 2015-16 and 2017-18 onboard observation of surface DMS in the Amundsen Sea polynya will be presented. We implemented high-frequency continuous measurement using membrane-inlet mass spectrometer. Additionally, R/V Araon’s 2018 austral autumn observation of DMS in the Antarctic Peninsular region will be
shown.herefore, accurate estimate of DMS emission in the Southern Ocean is essential to understand interaction between climate and ocean environment. However, despite the importance of DMS flux estimate in the Southern Ocean, DMS measurements inthe Southern Ocean are significantly under-sampled due to its limited accessibility.
Polynyas in the coastal shelf region exhibit strong productivity. Especially, Amundsen Sea polynya has been reported as the strongest productivity regionamong the polynyas in the Southern Ocean. Thus, DMS emission from the Amundsen Sea Polynya is noticeably strong as well. Furthermore, high-frequency measurement is required to improve accuracy of the flux estimate because of large spatio-temporal variability of phytoplankton distribution in the polynya. In this study, Korean icebreaking vessel R/V Araon’s 2015-16 and 2017-18 onboard observation of surface DMS in the Amundsen Sea polynya will be presented. We implemented high-frequency continuous measurement using membrane-inlet mass spectrometer. Additionally, R/V Araon’s 2018 austral autumn observation of DMS in the Antarctic Peninsular region will be
shown.
-
URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/23020
-
Bibliographic Citation
- 한국해양학회 추계학술대회, pp.1, 2018
-
Publisher
- 한국해양학회
-
Type
- Conference
-
Language
- English
- Files in This Item:
-
There are no files associated with this item.
Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.