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, in 2025 (NCEI Accession 0311803)

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                                            [
  "0311803",
  "BAROMETRIC PRESSURE",
  "partial pressure of carbon dioxide - water",
  "SALINITY - SURFACE WATER",
  "WATER TEMPERATURE",
  "barometric pressure sensor",
  "carbon dioxide (CO2) gas analyzer",
  "salinometer",
  "showerhead equilibrator",
  "temperature sensor",
  "chemical",
  "meteorological",
  "physical",
  "surface underway",
  "KEIFU MARU",
  "Japan Meteorological Agency",
  "Japan Meteorological Agency",
  "Ship of Opportunity Programme (SOOP)",
  "Surface Ocean CO2 Atlas (SOCAT)",
  "North Pacific Ocean",
  "oceanography",
  "JP/JMA > Japan Meteorological Agency, Japan",
  "KS2501",
  "KS2502",
  "KS2504",
  "KS2506",
  "49UF20250114",
  "49UF20250529",
  "49UF20250827",
  "49UF20251112",
  "Ocean Carbon and Acidification Data System (OCADS) Project",
  "SOOP",
  "Ship Of Opportunity Program (SOOP)",
  "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE",
  "EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > SURFACE SALINITY",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE",
  "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE",
  "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY",
  "Surface underway",
  "R/V Keifu Maru II",
  "SOOP",
  "VOS",
  "AtmPrs",
  "SSS",
  "SST_C",
  "xCO2eq",
  "BAROMETERS > BAROMETERS",
  "CO2 ANALYZERS > CO2 ANALYZERS",
  "EQUILIBRATORS",
  "SALINOMETERS",
  "TEMPERATURE SENSORS > TEMPERATURE SENSORS",
  "Ships",
  "KEIFU MARU (call sign: JPBN, ICES code: 49UF, 2000-)",
  "OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN",
  "North Pacific Ocean"
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