To study the ecophysiological functions of cultured bacteria according to the environmental changes
The modified ERSEM was implemented in the framework coupled with the General Ocean Turbulence Model (GOTM), a 1D water column model that includes a variety of turbulence closure schemes for vertical mixing (Burchard et al., 2006). The model was used for the three regions (ACC: 60oS, 180oE; NWR: 72oS, 172oE; TNB:74.5oS,165oE) from 1 January 1979 to 31 December 2019. Atmospheric forcing parameters, including zonal and meridional wind speeds, surface pressure, air temperature, dew point, and total cloud concentration, were obtained from the hourly the European Centre for Medium Range Weather Forecasts (ECMWF) reanalysis ERA-5 data (0.125° horizontal resolution).
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 contain ion currents of those gases and total pressure in the mass spectrometer. To evaluate the magnitude of biological pump and its influencing factors, we estimated the net community production (NCP) of the northern Chukchi Sea in August 2017 and 2020. Net community production (NCP), defined as the difference between autotrophic photosynthesis and (autrophic and 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 isolate 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.
GOAL ○ Development of Korean route and infrastructure such as research camp to approach the Antarctic inland ○ Establishment of a support system for the Antarctic inland research RESEARCH CONTENTS ○ A safe and reliable route expedition to the sites of the Subglacial Lake and Deep Ice Core drilling for Antarctic inland research ○ Construction of logistic camps at the sites of the Subglacial Lake and Deep Ice Core drilling for Antarctic inland research
Metagenome sequence data from Chersky site 5 (surface layer). Provision of scientific information for control and prevention of hazardous microorganisms based on the distribution map and mechanism of hazardous microorganisms.
Remotely operating GPS system Investigation of the behaviour of ice sheet
King Sejong Station Barton Peninsula, King George Island, Antarctica more infomation
Jang Bogo Station Terra Nova Bay, Northern Victoria Land, Antarctica more infomation
Dasan Station NyÅlesund, Norway, Europe more infomation
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