Surface underway measurements of partial pressure of carbon dioxide (pCO2), sea surface temperature, sea surface salinity and other parameters from Autonomous Surface Vehicle (ASV) Saildrone 1008 (EXPOCODE 09DB20180328) in the South Pacific Ocean, Tasman Sea from 2018-03-28 to 2018-06-07 (NCEI Accession 0253456)

This dataset includes surface underway chemical, meteorological and physical data collected from Autonomous Surface Vehicle (ASV) Saildrone 1008 (EXPOCODE 09DB20180328) in the South Pacific Ocean, Tasman Sea from 2018-03-28 to 2018-06-07. These data include XCO2_DRY_SW [μmol/mol]- Mole fraction of CO2 in the equilibrator head space; XCO2_DRY_AIR [μmol/mol] - Mole fraction of CO2 in the atmosphere; fCO2_WET_SW [μatm] - Fugacity of carbon dioxide at surface water, corrected for water vapour at surface water salinity and temperature; DfCO2 [μatm] - Delta fCO2 = (fCO2_WET_SW - fCO2_WET_AIR); Atmospheric pressure; Equilibrator pressure; Sea surface temperature; Equilibrator Temperature; Sea Surface Salinity; Concentration O2 in surface sea water; Total pH surface water. The instruments used to collect these data include bubble type equilibrator for autonomous carbon dioxide (CO2) measurement, carbon dioxide (CO2) gas analyzer, humidity sensor, oxygen meter and thermosalinographs.