As part of a multi-year effort to quantify the flux of CO2 between the ocean and atmosphere, the Ocean Climate Observation Program of the National Oceanic and Atmospheric Administration (NOAA) supports the deployment of underway CO2 systems on NOAA research ships and volunteer observing ships (VOS) in the Atlantic and Pacific Oceans. The CO2 group of NOAA's Pacific Marine Environmental Laboratory (PMEL) has been monitoring sea surface CO2 concentrations in the equatorial Pacific since 1982. This is a particularly dynamic area exhibiting significant variation of CO2 concentrations, both interannually due to the effect of periodic El Niño events, and seasonally due to the changes in wind strength and upwelling patterns. By measuring the pCO2 in both the sea surface and atmosphere, along with sea surface temperature, pressure, and wind speed, the flux of CO2 can be calculated, affording a broader understanding of key processes and changes in these processes in the ocean on decadal time scales. A strong upwelled-driven inverse pCO2-SST relationship exists across the equatorial Pacific, allowing the development of an empirical approach to obtain highly resolved pCO2 distributions and CO2 fluxes. This data package represents pCO2 gathered by PMEL onboard the NOAA Ka'imimoana from 1996 through 2010 as a companion project to the biannual servicing of the Tropical Atmosphere Ocean (TAO) Array moorings. The cruises during the 15-year period included 77 transects of the equatorial Pacific between 95°W and 165°E, and spanned several El Niño events.

This dataset includes surface chemical, meteorological, physical time series data collected from mooring CB-06_125W_43N in the North Pacific Ocean from 2017-06-10 to 2021-11-22. These data include air-sea difference - partial pressure of carbon dioxide (pCO2), barometric pressure, oxygen, pCO2 - atmosphere, pCO2 - water, salinity, sea surface temperature, oxygen, pH on total scale, total chlorophyll, nephelometric turbidity unit and salinity-compensated dissolved oxygen. The Moored Autonomous pCO2 (MAPCO2®) instruments used to collect these data include Bubble type equilibrator for autonomous carbon dioxide (CO2) measurement, Carbon dioxide (CO2) gas analyzer, Humidity Sensor, and oxygen meter. The Global CO2 Time-series and Moorings Project involves international groups from 18 countries who have mounted sensors on moored buoys to provide high resolution time-series measurements of atmospheric boundary layer and surface ocean CO2 partial pressure (pCO2). The CO2 Time-series and Moorings Project is coordinated by UNESCO International Ocean Carbon Coordination Project (IOCCP).

Data were collected by Oregon State University personnel aboard the R/V YAQUINA and the R/V CAYUSE. Most of the cruises were concerned with surveying hydrographic conditions and studying the Columbia River plume.

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 2018-01-27 to 2019-02-16. 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 chemical, meteorological, physical and time series data collected from Mooring_NH10_124W_44N in the North Pacific Ocean from 2014-04-03 to 2017-04-23. These data include air-sea difference - partial pressure of carbon dioxide (pCO2), barometric pressure, oxygen, pCO2 - atmosphere, pCO2 - water, salinity, sea surface temperature, oxygen, pH on total scale, total chlorophyll, nephelometric turbidity unit and salinity-compensated dissolved oxygen. The Moored Autonomous pCO2 (MAPCO2®) instruments used to collect these data include Bubble type equilibrator for autonomous carbon dioxide (CO2) measurement, Carbon dioxide (CO2) gas analyzer, Humidity Sensor, and oxygen meter. The Global CO2 Time-series and Moorings Project involves international groups from 18 countries who have mounted sensors on moored buoys to provide high resolution time-series measurements of atmospheric boundary layer and surface ocean CO2 partial pressure (pCO2). The CO2 Time-series and Moorings Project is coordinated by UNESCO International Ocean Carbon Coordination Project (IOCCP).

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 2021-01-08 to 2022-01-06. 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 from M/S Trans Future 5 in the, North Pacific Ocean, Philippine Sea, Solomon Sea, South Pacific Ocean and Tasman Sea from 2019-01-13 to 2020-01-07. 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 from M/S Trans Future 5 in the, North Pacific Ocean, Philippine Sea, Solomon Sea, South Pacific Ocean and Tasman Sea from 2020-01-08 to 2021-01-07. 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 from M/S Trans Future 5 in the, North Pacific Ocean, Philippine Sea, Solomon Sea, South Pacific Ocean and Tasman Sea from 2023-01-07 to 2023-11-05. 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 from M/S Trans Future 5 in the, North Pacific Ocean, Philippine Sea, Solomon Sea, South Pacific Ocean and Tasman Sea from 2022-01-06 to 2022-12-27. 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.