This dataset consists of surface underway measurements of partial pressure (or fugacity) of carbon dioxide (seawater and atmospheric), ISFET-based pH (total scale), temperature, and salinity collected on 5 trans-Pacific sections during the container ship Cap Blanche ship-of-opportunity (SOOP) cruises in the Pacific Ocean from 2018-01-12 to 2018-09-04. Cruise names and EXPOCODEs: CB2018_01 (AG5W20180112), CB2018_03 (AG5W20180309), CB2018_05 (AG5W20180502), CB2018_07 (AG5W20180630), CB2018_09 (AG5W20180827). Since 1992, underway CO2 observations have been made between New Zealand and the U.S. West Coast. In 2010, ISFET-based pH measurements (total scale) were added to this equatorial Pacific SOOP-based time-series. All pH data, when available, are reported on the total scale and at SST. This effort was conducted with the support of NOAA's Ocean Observing and Monitoring Division in the Climate Program Office (CPO) and NOAA's Ocean Acidification Program (OAP).

This dataset contains data from underway fCO2 (seawater and atmospheric), ISFET-based pH (total scale), temperature, and salinity measurements collected on 4 trans-Pacific cruises in 2016 as part of a ship-of-opportunity time-series. Cruise names and expocodes: CB2016_03 (AG5W20160313), CB2016_05 (AG5W20160507), CB2016_08 (AG5W20160829), CB2016_10 (AG5W20161019). Since 1992, underway CO2 observations have been made between New Zealand and the U.S. West Coast. In 2010, ISFET-based pH measurements (total scale) were added to this equatorial Pacific SOOP-based time-series. All pH data, when available, are reported on the total scale and at SST. This effort was conducted with the support of NOAA's Ocean Observing and Monitoring Division in the Climate Program Office (CPO) and NOAA's Ocean Acidification Program (OAP).

This dataset consists of surface underway measurements of Partial pressure (or fugacity) of carbon dioxide (pCO2) in water and atmosphere, ISFET-based pH (total scale), temperature, salinity and barometric pressure collected on 6 trans-Pacific cruises in 2014 as part of a ship-of-opportunity (SOOP) time-series. Cruise names and EXPOCODEs: CB2014_02 (AG5W20140201), CB2014_03 (AG5W20140327), CB2014_05 (AG5W20140523), CB2014_07 (AG5W20140718), CB2014_09 (AG5W20140912), CB2014_11 (AG5W20141113). Since 1992, underway CO2 observations have been made between New Zealand and the U.S. West Coast. In 2010, ISFET-based pH measurements (total scale) were added to this equatorial Pacific SOOP-based time-series. All pH data, when available, are reported on the total scale and at SST. This effort was conducted with the support of NOAA's Ocean Observing and Monitoring Division in the Climate Program Office (CPO) and NOAA's Ocean Acidification Program (OAP).

This dataset contains underway measurements of pCO2, salinity, sea surface temperature, and other parameters collected during 6 trans-Pacific crossings in 2017 and 2018 on the container ship Cap Blanche. Cruise names and expocodes: CB2017_11 (AG5W20171117), CB2018_01 (AG5W20180112), CB2018_03 (AG5W20180309), CB2018_05 (AG5W20180502), CB2018_07 (AG5W20180630), CB2018_09 (AG5W20180827). All cruises were transits between the North American West Coast and New Zealand. This effort was conducted in support of NOAA's Climate Program Office (CPO), and Ocean Acidification Program (OAP).

This dataset contains data from underway fCO2 (seawater and atmospheric), temperature, and salinity measurements collected on 4 trans-Pacific cruises in 2015 as part of a ship-of-opportunity time-series. Cruise names and expocodes: CB2015_03 (AG5W20150328), CB2015_05 (AG5W20150524), CB2015_09 (AG5W20150930), CB2015_11 (AG5W20151120). Since 1992, underway CO2 observations have been made between New Zealand and the U.S. West Coast. This effort was conducted with the support of NOAA's Ocean Observing and Monitoring Division in the Climate Program Office (CPO) and NOAA's Ocean Acidification Program (OAP).

This dataset contains underway measurements of pCO2, salinity, sea surface temperature, and other parameters were collected during 6 trans-Pacific crossings in 2014 on the container ship Cap Blanche. Cruise names and expocodes: CB2014_02 (AG5W20140201), CB2014_03 (AG5W20140327), CB2014_05 (AG5W20140523), CB2014_07 (AG5W20140718), CB2014_09 (AG5W20140912), CB2014_11 (AG5W20141113). All cruises started in Long Beach California and ended in New Zealand. This effort was conducted in support of NOAA's Climate Program Office (CPO), and Ocean Acidification Program (OAP).

This dataset includes chemical, meteorological, physical and surface underway data collected Ships of Opportunity (SOOP) M/V Lillooet cruises in the North and South Pacific Ocean from 1983-11-30 to 1988-02-20. These data include AIR TEMPERATURE - DRY BULB, AIR TEMPERATURE - WET BULB, BAROMETRIC PRESSURE, CARBON DIOXIDE - AIR, Partial pressure (or fugacity) of carbon dioxide, RELATIVE HUMIDITY, SALINITY, SEA SURFACE TEMPERATURE and WIND SPEED. The instruments used to collect these data include gas chromatograph. These data were collected by C. S. Wong of Climate Chemistry Laboratory, OSAP, Institute of Ocean Sciences as part of the Lillooet, Vancouver to Australia Cruises, 1983-1988 dataset.

This dataset includes surface underway, chemical, meteorological and physical data collected from M/S Trans Future 5 in the, North Pacific Ocean, Philippine Sea, Solomon Sea, South Pacific Ocean and Tasman Sea from 2024-01-20 to 2024-10-12. These data include absolute humidity, air temperature, air-sea difference - partial pressure of carbon dioxide (pCO2), pCO2 - atmosphere, pCO2 - water, barometric pressure, relative humidity, sea surface salinity, sea surface temperature, wind direction and speed. The instruments used to collect these data include barometric pressure sensor, carbon dioxide (CO2) gas analyzer, shower head chamber equilibrator for autonomous CO2 measurement and thermosalinographs.

This dataset includes surface underway, chemical, meteorological and physical data collected during the Voluntary Observing Ship Statsraad Lehmkuhl cruises in 2022 in the Pacific, Indian and Atlantic Oceans from 2022-01-02 to 2022-12-05. These data include measurements of mole fraction of CO2 in ambient atmosphere in dry air, mole fraction of CO2 in air from equilibrator in dry air, atmospheric pressure, sea surface temperature and sea surface salinity.