Partial pressure of carbon dioxide, salinity, temperature and other variables collected from surface underway observations using carbon dioxide (CO2) gas analyzer, shower head chamber equilibrator for autonomous CO2 measurement and other instruments from R/V Keifu Maru II in the Pacific Ocean, East China Sea and Sea of Japan in 2019 (NCEI Accession 0210388)
PACKAGE DESCRIPTION: This dataset includes surface underway data collected from R/V Keifu Maru II in the Pacific Ocean, East China Sea and Sea of Japan, from 2019-01-08 to 2019-12-07. These data include barometric pressure, partial pressure of carbon dioxide - atmosphere, partial pressure of carbon dioxide - water, sea surface salinity and sea surface temperature. The instruments used to collect these data include carbon dioxide (CO2) gas analyzer, shower head chamber equilibrator for autonomous carbon dioxide (CO2) measurement.
CITE AS: Kadono, Koji (2020). Partial pressure of carbon dioxide, salinity, temperature and other variables collected from surface underway observations using carbon dioxide (CO2) gas analyzer, shower head chamber equilibrator for autonomous CO2 measurement and other instruments from R/V Keifu Maru II in the Pacific Ocean, East China Sea and Sea of Japan in 2019 (NCEI Accession 0210388). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/3cjj-wg70. Accessed [date].
Surface measurement;Surface underway;
TEMPORAL COVERAGE:
SPATIAL COVERAGE:
GEOGRAPHIC NAMES:
PLATFORMS:
RESEARCH PROJECT(S):
VARIABLES / PARAMETERS:
| pCO2 (fCO2) autonomous | |
|---|---|
| Abbreviation: | xCO2eq |
| Unit: | uatm |
| Observation type: | Surface underway |
| Measured or calculated: | Measured |
| Sampling instrument: | Seawater pump |
| Location of seawater intake: | Port sea-chest at the center in the longitudinal direction of a hull |
| Analyzing instrument: | Infra-red analysis on dry gas |
| Detailed sampling and analyzing information: | Infrared analysis of headspace in equilibrium with flowing seawater |
| Equilibrator type: | Shower head |
| Equilibrator volume: | 0.85 (air), 6.5 (seawater) |
| Is the equilibrator vented or not: | Vented |
| Water flow rate: | 3 L/min |
| Gas flow rate: | 500 mL/min |
| Drying method for gas: | Thermoelectric cooling units followed by permeable membrane dryer and magnessium perchlorate tube |
| SEA CO2 gas detector manufacturer: | Licor, Inc |
| SEA CO2 gas detector model: | Licor 7000 |
| SEA CO2 gas detector resolution: | 1.96 micro mol/mol (xCO2eq) |
| SEA CO2 gas detector uncertainty: | 0.351 micro mol/mol |
| Standardization technique: | Scale: WMO X2007 scale |
| Standardization frequency: | Every 30 minutes |
| Standard gas manufacturer: | Japan Fine Products Co., Ltd. (Japan) |
| Standard gas concentration: | 5 cylinders 215, 280, 350, 410 and 470 micro mol/mol |
| Standard gas uncertainty: | 0.723 micro mol/mol |
| At what temperature was pCO2 reported: | In situ sea surface temperature |
| Uncertainty: | 0.01C |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Method reference: | Hirota, M., Nemoto, K., Murata, A., and Fushimi, K. 1991. Observation of carbon dioxide in air and surface seawater in the western North Pacific Ocean. Oceanogr. Mag., 41, 19-28. |
| Researcher name: | Koji Kadono |
| Researcher institution: | Japan Meteorological Agency |
| Sea Surface Temperature | |
|---|---|
| Abbreviation: | SST_C |
| Unit: | degrees celcius |
| Observation type: | Surface Underway |
| Sampling instrument: | The seachest located ca.5 m below the sea level |
| Analyzing instrument: | Sea-Bird Electronics, Inc. Model SBE-38 |
| Uncertainty: | Resolution: 0.0001 DEG_C; Uncertainty (Accuracy/Precision): 0.001 DEG_C |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Koji Kadono |
| Researcher institution: | Japan Meteorological Agency |
| Sea Surface Salinity | |
|---|---|
| Abbreviation: | SSS |
| Observation type: | Surface Underway |
| Sampling instrument: | The seachest located ca.5 m below the sea level |
| Analyzing instrument: | Sea-Bird Electronics, Inc. SBE-45 |
| Uncertainty: | 0.003 mS/cm, Resolution SBE-45 |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Koji Kadono |
| Researcher institution: | Japan Meteorological Agency |
| Atmospheric pressure at sea-surface pressure | |
|---|---|
| Abbreviation: | AtmPrs |
| Unit: | hPa |
| Observation type: | Surface Underway |
| Uncertainty: | Resolution: 0.01 hPa; Uncertainty (Accuracy/Precision): 0.15 hPa |
| Researcher name: | Koji Kadono |
| Researcher institution: | Japan Meteorological Agency |
SUBMITTED BY: Koji Kadono (seadata@climar.kishou.go.jp)
SUBMISSION DATE: 2020-04-28
REVISION DATE: 2023-04-21
PREVIOUS VERSIONS: Version 1.1
