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Evidence of minimal carbon sequestration in the productive Amundsen Sea polynya

Title
Evidence of minimal carbon sequestration in the productive Amundsen Sea polynya
Author
현정호
Issue Date
2017-08
Publisher
AMER GEOPHYSICAL UNION
Citation
GEOPHYSICAL RESEARCH LETTERS, v. 44, No. 15, Page. 7892-7899
Abstract
The Amundsen Sea polynya (ASP) is reportedly the most productive among the coastal polynyas around Antarctica. However, observational constraints limit our understanding of the biological pump and carbon cycle in the ASP. We measured various carbon-related parameters such as primary production, bacterial production, sinking flux of particulate organic carbon (POC), and accumulation of organic carbon in the sediment as well as hydrographic parameters during field observations and by instrument moorings. Over 95% of the photosynthetically produced POC was converted to suspended POC and/ or dissolved carbon forms in the upper similar to 400 m layer. We postulate that most of the carbon transported to the water column by the biological pump in the ASP was flushed out of the shelf without being sequestered for long-term storage in sediments. Lack of bottom water formation due to intrusion of Circumpolar Deep Water in the lower layer reduces carbon sequestration efficiency.
URI
https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017GL074646https://repository.hanyang.ac.kr/handle/20.500.11754/72267
ISSN
0094-8276; 1944-8007
DOI
10.1002/2017GL074646
Appears in Collections:
COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > MARINE SCIENCE AND CONVERGENCE ENGINEERING(해양융합공학과) > Articles
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