서북극해에서 침강입자 플럭스의 공간 및 시간변화

Title
서북극해에서 침강입자 플럭스의 공간 및 시간변화
Alternative Title
Temporal and spatial variatins of particle fluxes in the western Arctic Ocean
Author(s)
김동선
KIOST Author(s)
Kim, Dongseon(김동선)
Publication Year
2019-05-14
Abstract
We examine the particle fluxes and composition of sinking particle collected at two sites in the western Arctic Ocean: East Siberian Sea and Chukchi Sea. Time-series sediment traps had been deployed at 320 m water for one year from August 2017 to July 2018. In the Chukchi sea, sinking particle fluxes showed a clear seasonal variation with high values in summer and low values in other seasons. Total mass flux displayed the maximum value (337 mg m-2 day-1) in August 2017. Annual mass flux was estimated to be 36.2 g m-2. Biogenic opal was a major component of sinking particles, comprising 45.7%. Lithogenic material was a second major component, comprising 34.8%. Organic carbon and CaCO3 comprise 7.3% and 2.0%, respectively. In the East Siberian sea, sinking particle fluxes also showed a clear seasonal variation with high values in summer and low values in other seasons, but high particle fluxes were not observed in August 2017. Total mass flux displayed the maximum value (475 mg m-2 day-1) in July 2018. Annual mass flux was estimated to be 30.0 g m-2, which a little lower than that in Chukchi Sea. Lithogenic material was a major component of sinking particles, comprising 58.1%. Biogenic opal was a second major component, comprising 23.0%. Organic carbon and CaCO3 comprise 6.8% and 2.5%, respectively.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/22726
Bibliographic Citation
The 25th International Symposium on Polar Science, pp.100, 2019
Publisher
KOPRI
Type
Conference
Language
English
Publisher
KOPRI
Related Researcher
Research Interests

Biogeochemistry,Carbon cycle,Ocean acidification,생지화학,탄소순환,해양산성화

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