This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity, dissolved oxygen, nutrients, chlorofluorocarbons (CFC-11, CFC-12, CFC113) and carbon-14/13 during the R/V James Clark Ross cruise JR18002 (EXPOCODE 74JC20181103) along the Global Ocean Ship-Based Hydrographic Investigation Program (GO-SHIP) Section SR01b in the Drake Passage, South Atlantic Ocean, Southern Ocean from 2018-11-03 to 2018-11-23. The International GO-SHIP Global Ocean Carbon and Repeat Hydrography Program carries out a systematic and global re-occupation of select WOCE/JGOFS/CLIVAR hydrographic sections to quantify changes in storage and transport of heat, fresh water, carbon dioxide (CO2), and related parameters.

This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity, oxygen and nutrients collected during the R/V Discovery cruise GO-SHIP Repeat Section A05 (EXPOCODE 74EQ20151206) in the Atlantic Ocean from 2015-12-06 to 2016-01-22. This cruise is U.S. State Department MSR U2015-30 as part of the World Data Service for Oceanography.

This dataset includes discrete profile measurements of dissolved inorganic carbon, total alkalinity, temperature, salinity, oxygen, nutrients, chlorofluorocarbon 12 (CFC-12) and sulfur hexafluoride (SF6) made during the R/V Celtic Explorer cruise CE17007 along the Global Ocean Ship-Based Hydrographic Investigation Program (GO-SHIP) Section A02 (EXPOCODE 45CE20170427) in the North Atlantic Ocean from 2017-04-27 to 2017-05-22. Hydrographic measurements along this section were made under the direction of the GO-SHIP. This reoccupation of the A02 section was supported by the Irish Marine Institute and funded under the Marine Research Programme by the Irish Government. Individual teams were supported by the European Union’s Horizon 2020 and the Canada Excellence Research Chair in Ocean Science and Technology.

This dataset includes discrete sample and profile data collected during the R/V Hudson GO-SHIP AR07W cruise (EXPOCODE 18HU20160430) in the North Atlantic Ocean and Labrador Sea from 2016-04-30 to 2016-05-15. These data include temperature, salinity, dissolved oxygen, nutrients, chlorofluorocarbons, nutrients, dissolved inorganic carbon (DIC), total alkalinity, pH on the total scale, sulfur hexafluoride (SF6) and ammonium.

This dataset includes profile discrete measurements of CTD temperature, CTD salinity, bottle salinity, CTD oxygen, bottle oxygen, nutrients, dissolved inorganic carbon, total alkalinity, pH on total scale, chlorofluorocarbons and other measurements obtained during the SOCCOM Biogeochemical floats deployments cruise IN2018_V01 along the GO-SHIP Repeat Section SR03, S04I (EXPOCODE 096U20180111) in the Southern Ocean from 2018-01-11 to 2018-02-22. SOCCOM project is a large scale National Science Foundation funded research project based at Princeton University that started in September 2014. The project aims to increase the understanding of the Southern Ocean and the role it plays in factors such as climate, as well as educate new scientists with oceanic observation.

This dataset contains dissolved inorganic carbon, total alkalinity, pH on total scale, nutrients and other variables measured from profile discrete observations during the R/V Hugh R. Sharp cruise S11802 (EXPOCODE 33H520181102) in the North Atlantic Ocean, Gulf of Maine, Georges Bank, and Mid-Atlantic Bight from 2018-11-02 to 2018-11-12. Increasing amounts of atmospheric carbon dioxide from human industrial activities are causing changes in global ocean carbon chemistry ultimately resulting in a reduction in pH, a process termed ocean acidification. Studies have demonstrated adverse effects on calcifying organisms, particularly some invertebrates, corals, sea urchins, pteropods, and coccolithophores, but also on species of commercial interest such as oysters or crabs. In support of the coastal monitoring and research objectives of the NOAA Ocean Acidification Program (OAP), the Ecosystem Monitoring Cruises (ECOMON) are utilized to collect water samples to measure water column inorganic carbon and hydrographic parameters including nutrients. Samples are collected at three depths (surface, mid-depth and near bottom) at select stations on a quarterly basis in the northeastern Atlantic continental shelf region of the United States. Water samples are sent to and analyzed by scientists at the Atlantic Oceanographic and Meteorological Laboratory (AOML) for dissolved inorganic carbon, pH and total alkalinity concentrations. Additional samples are analyzed for nutrient concentrations at the University of Maine. These data are used to monitor short-long term coastal ocean acidification trends.

This dataset includes discrete profile measurements of Dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, discrete pCO2, chlorofluorocarbons (CFC11, CFC12), dissolved organic carbon (DOC), water temperature, salinity, dissolved oxygen, nutrients and other hydrographic and chemical variables collected from discrete samples and profile observations during the R/V Thomas G. Thompson cruise on GO-SHIP repeat section A22 (EXPOCODE 325020210420) in the North Atlantic Ocean from 2021-04-20 to 2021-05-16. GO-SHIP repeat transoceanic surveys (www.goship.org) provide full water column hydrographic observations with temporal and spatial resolutions adequate to resolve decadal variability in oceanic storage of heat, freshwater, carbon, oxygen, nutrients and transient tracers. Repeat hydrographic physical-biogeochemical measurements nominally along 52° 20’N in the North Atlantic Ocean enables scientists to better tackle important unresolved aspects of the Atlantic Ocean’s response to decadal scale variability and increases in both heat and carbon dioxide as a result of anthropogenic activities. The A22 2021 cruise aboard the UNOLS vessel R/V Thomas G. Thompson was undertaken as part of the US GO-SHIP (Global Ocean Ship-based Hydrographic Investigations Program), a major contributor to international GO-SHIP. The program’s overall objective is to collect quasi-decadal, highly accurate, surface-to-bottom, coast-to-coast, physical, and chemical oceanic observations. These measurements are essential to monitoring long-term changes in heat, freshwater, carbon, oxygen, and other tracers in the global ocean, the main reservoir in the Earth System.

This dataset includes discrete profile measurements of Dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, discrete pCO2, chlorofluorocarbons (CFC11, CFC12), dissolved organic carbon (DOC), water temperature, salinity, dissolved oxygen, nutrients and other hydrographic and chemical variables collected from discrete samples and profile observations during the R/V Thomas G. Thompson cruise on GO-SHIP repeat section A20 (EXPOCODE 325020210316) in the North Atlantic Ocean from 2021-03-16 to 2021-04-16. GO-SHIP repeat transoceanic surveys (www.goship.org) provide full water column hydrographic observations with temporal and spatial resolutions adequate to resolve decadal variability in oceanic storage of heat, freshwater, carbon, oxygen, nutrients and transient tracers. Repeat hydrographic physical-biogeochemical measurements nominally along 52° 20’N in the North Atlantic Ocean enables scientists to better tackle important unresolved aspects of the Atlantic Ocean’s response to decadal scale variability and increases in both heat and carbon dioxide as a result of anthropogenic activities. The U.S. GO-SHIP A20 2021 hydrographic section revisited this line for the fourth time, with prior transects occurring in 1997, 2003, and 2012.

This dataset includes discrete bottle measurements of dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, temperature, salinity, oxygen, nutrients, delta C14, delta C14, helium and other chemical parameters collected during the SOCCOM float deployment expedition onboard R/V Investigator cruise IN2016_V03 along the GO-SHIP section P15S (EXPOCODE 096U20160426) from 2016-04-26 to 2016-06-30. The R/V Investigator cruise IN2016_V03 is the part of the SOCCOM project cruise from the research ships in the South Pacific Ocean and Southern Ocean. These data are part of the World Data Service for Oceanography and US State Department Marine Research U2015-032.

Near-shore estuarine and coastal regions are where most recreational fishing and tourism occur, yet they are vastly under-sampled. Their susceptibility to OA is not well understood due to their high biogeochemical variability. These regions are affected by land-side processes such as river discharge and run-offs and ocean-side processes through slope water exchange. A full determination of the carbonate system in these regions in conjunction with open ocean measurements is needed to increase our understanding of the effects of OA on ocean health and fisheries and our ability to predict them. In this project, we propose to augment several observational campaigns by 1) adding a carbonate component to the harmful algal blooms (HABs) monitoring cruises conducted periodically on the Western Florida Shelf in order to study potential links between HABs and OA, 2) renewing our collaboration with select National Parks to complement and enhance our near-shore data collection on the Northern Gulf of America and US East Coast, and 3) complementing our underway surface pCO2 measurements in the Gulf of America and US East Coast with underway total alkalinity measurements to help us improve our fundamental understanding of nearshore OA processes. The addition of these measurements to the current assets already present in the region would enhance our understanding of the linkage between nearshore and open ocean processes and better assess the mechanisms and impacts of OA on the biogeochemistry, biology and their economic consequences.