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KPDC, Korea Polar Data Center

Korea Polar Data Center Scientific observations and results from Antarctica shall
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O2/Ar of surface water measured using an equilibrator inlet mass spectrometer (2012)

O2/Ar in seawater, pumped from the intake at 7 m below sea level, was measured using an equilibrator inlet mass spectrometer. The mass spectrometer measured a series of dissolved gases including O2 and Ar every 10 seconds. The data record ion currents of those gases and total pressure in the mass spectrometer. Net community production (NCP), defined as the difference between autotrophic photosynthesis and (autrophicand heterotrophic) respiration, produces O2 proportional to the amount of net carbon. By measuring chemically and biologically inert Ar together with O2, it is possible to remove O2 variation by physical processes (e.g., air temperature and pressure change and mixing of water masses) and deduce O2 variation by biological processes. To determine the net community (oxygen) production underway, we measured continuous O2/ Ar measurement system using an equilibrator inlet mass spectrometer.

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Entry ID
DOI
https://dx.doi.org/doi:10.22663/KOPRI-KPDC-00000229.2
Copyright
Science Keyword
ISO Topic
OCEANS
ENVIRONMENT
Platforms
Araon(Ice Breaking Research Vessel Araon (IBRV Araon))
Instruments
EIMS(Equilibrator Inlet Mass Spectrometer)
Personnel
  • Doshik Hahm (hahm@kopri.re.kr)
Project
Research period
2012-01-31 ~ 2012-03-19
2012-07-15 ~ 2012-07-29
Create/Update Date
2012-08-21 / 2022-02-04
Location
Continent > Antarctica > Geographic Region > Arctic
Dataset
O2/Ar of surface water measured using an equilibrator inlet mass spectrometer
Citation
The data(KOPRI-KPDC-00000229) used in this work was provided by the Korea Polar Research Institute.
Spatial Coverage

POLYGON

  • lat:-70.000000, lon:-122.000000
  • lat:-75.000000, lon:-100.000000

POLYGON

  • lat:-32.000000, lon:121.000000
  • lat:-65.000000, lon:-175.000000

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Version History

Version Registration Date Submitter Summary
2 2022-01-21 11:41 Dongchan Joo 2022-01-21 11:41 Update
1 2012-08-21 00:00 Dongchan Joo 2012-08-21 00:00 Update