Partial pressure (or fugacity) of carbon dioxide, temperature, salinity and other variables collected from surface underway observations using carbon dioxide gas analyzer, shower head equilibrator and other instruments from NOAA Ship Ronald H. Brown cruises RB1301 and RB1302 in the North Atlantic Ocean from 2013-01-08 to 2013-03-04 (NCEI Accession 0162200)

These data include measurements of mole fraction of CO2 in the equilibrator headspace (dry) at equilibrator temperature, mole fraction of CO2 measured in dry outside air, barometric pressure in the equilibrator headspace, barometric pressure, corrected to sea level, water temperature in equilibrator, sea surface temperature, sea surface salinity, fugacity of CO2 in sea water at SST and 100% humidity, and difference between sea water fCO2 and interpolated air fCO2.

The instruments used to collect these data include carbon dioxide (CO2) gas analyzer and shower head chamber equilibrator for autonomous carbon dioxide (CO2) measurement. These data were collected by Rik Wanninkhof and Denis Pierrot of US DOC; NOAA; OAR; Atlantic Oceanographic and Meteorological Laboratory as part of NOAA Ship Ronald H. Brown research cruises RB1301 and RB1302 data set. The cruise Expedition codes (EXPOCODEs) are 33RO20130108 and 33RO20130219.