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Korea Polar Data Center Scientific observations and results from Antarctica shall
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Underway measurements of net community production in the Amudsen Sea

The coastal polynyas in the Amundsen Sea are known for high primary production in austral summer (Arrigo et al., 2012). Rapid environmental changes in the Amundsen Sea poses questions such as how the biological and chemical systems respond to the environmental changes. During the cruise, we measured net community production (NCP), defined as the difference between autotrophic photosynthesis and (autotrophic and heterotrophic) respira-tion, as a measure of biological pump. By measuring chemically and biologically inert Ar to-gether with O2, it is possible to remove O2 variation by physical processes (e.g., air tempera-ture and pressure change and mixing of water masses) and deduce O2 variation by biological processes (Craig and Hayward, 1987). In order to investigate the spatial and temporal variations of NCP in the surface wa-ters of the polynyas and the proposed correlation between them, we observed the horizontal and vertical (upper 100 m) distributions of ΔO2/Ar, a proxy of NCP, in the Amundsen Sea using a membrane inlet mass spectrometer (MIMS) (Tortell, 2005).

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Entry ID
DOI
https://dx.doi.org/doi:10.22663/KOPRI-KPDC-00001084
Copyright
Science Keyword
ISO Topic
Oceans
Personnel
  • Keyhong Park (keyhongpark@kopri.re.kr)
Research period
2017-12-22 ~ 2018-02-04
Create/Update Date
2018-10-16 / 2025-10-01
Location
OCEAN > SOUTHERN OCEAN > Amundsen Sea
Citation
The data(KOPRI-KPDC-00001084) used in this work was provided by the Korea Polar Research Institute.
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  • lat:-74.336000, lon:-179.969000
  • lat:-43.536200, lon:179.959000

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Raw Data
File Size 11.31 Mb for 24 items
Category File Name Description Size Status
Rawdata 2017-12-22mimsView3.csv 1.46 Mb Request required
Rawdata 2017-12-25mimsView3.csv 509.69 Kb Request required
Rawdata 2017-12-27mimsView3.csv 370.12 Kb Request required
Rawdata 2017-12-28mimsView3.csv 510.28 Kb Request required
Rawdata 2017-12-29mimsView3.csv 560.9 Kb Request required
Rawdata 2017-12-30mimsView3.csv 574.07 Kb Request required
Rawdata 2018-01-01mimsView3.csv 478.9 Kb Request required
Rawdata 2018-01-02mimsView3.csv 730.06 Kb Request required
Rawdata 2018-01-04mimsView3.csv 321.89 Kb Request required
Rawdata 2018-01-05mimsView1.csv 168.06 Kb Request required
Rawdata 2018-01-06mimsView3.csv 372.94 Kb Request required
Rawdata 2018-01-07mimsView3.csv 202.23 Kb Request required
Rawdata 2018-01-08mimsView3.csv 289.06 Kb Request required
Rawdata 2018-01-10mimsView1.csv 757.79 Kb Request required
Rawdata 2018-01-14mimsView1.csv 271.91 Kb Request required
Rawdata 2018-01-15mimsView1.csv 461.65 Kb Request required
Rawdata 2018-01-18mims1View1.csv 193.92 Kb Request required
Rawdata 2018-01-18mimsView1.csv 89.13 Kb Request required
Rawdata 2018-01-19mimsView1.csv 729.92 Kb Request required
Rawdata 2018-01-23mimsView1.csv 889.76 Kb Request required
Rawdata 2018-01-28mimsView1.csv 779.92 Kb Request required
Rawdata 2018-02-01mimsView1.csv 82.3 Kb Request required
Rawdata 2018-02-01mimsView2.csv 464.2 Kb Request required
Rawdata DMS_Std.xlsx 41.87 Kb Request required

Version History

Version Registration Date Submitter Summary
2 2025-09-26 05:41 Choi, Jung-Ok 2025-09-26 05:41 Update
1 2018-10-16 01:38 Choi, Jung-Ok 2018-10-16 01:38 Update