Partial pressure (or fugacity) of carbon dioxide, water temperature, salinity and other variables collected from surface underway observations from R/V Mirai cruise MR18-06 (EXPOCODE 49NZ20181210) in the Pacific Ocean from 2018-12-10 to 2019-01-09 (NCEI Accession 0253473)

This dataset includes surface underway, chemical, meteorological and physical data collected from R/V Mirai cruise MR18-06 (EXPOCODE 49NZ20181210) in the Pacific Ocean from 2018-12-10 to 2019-01-09. These data include water temperature, barometric pressure, partial pressure (or fugacity) of carbon dioxide - atmosphere, partial pressure (or fugacity) of carbon dioxide - water. The instruments used to collect these data include Carbon dioxide (CO2) gas analyzer and shower head chamber equilibrator for autonomous carbon dioxide (CO2) measurement.