This dataset consists of dissolved inorganic carbon, total alkalinity, pH on total scale, water temperature, salinity, dissolved oxygen, nutrients and other variables collected from discrete samples and profile observations during R/V W. T. Hogarth Coastal cruise HG25083 (EXPOCODE 33SGDK20250324) in the North Atlantic Ocean and Gulf of America from 2025-03-24 to 2025-03-31. 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.

This dataset contains discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, water temperature, salinity, dissolved oxygen concentration, nutrients and other chemical and hydrographic parameters obtained during the R/V Ramón Margalef RADPROF 2018 cruise (EXPOCODE 29RM20180818) in the North East Atlantic Ocean from 2018-08-18 to 2018-08-27. The RADPROF project is an annual routine monitoring activity associated with the Finisterre deep section, RADPROF, which contributes to the IEO oceanography observation system, IEOOS since 2003. RADPROF contributes to time series of hydrography, circulation, inorganic biogeochemistry and biology in the slope region of the Galicia-Cantabrian region, passing through the protected area of the Bank of Galicia since 2014. The time series began in 2003 with the VACLAN National Plan project, continued by COVACLAN (2005) and later integrated as a structural program of the IEO under the pseudonym RADPROF. The basic activity is reinforced and expanded thanks to competitive projects of the National Plan such as MODUPLAN (2014), or Interreg EU iFADO (2020), complementary sampling activities using gliders (FinisGlider). Currently RADPROF is basic in Chapter 6 of the Marine Strategy Framework Directive, as it also would be for the Ocean Acidification and Prevailing Conditions chapter. From 2024 to 2026 it will contribute to the EuroGOSHIP project in support of the improvement of European hydrography. RADPROF is recognized as a GO-SHIP Associated line due to the high density and quality of its thermohaline, circulation and inorganic biogeochemistry data, especially CO2 variables.

This dataset contains discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, water temperature, salinity, dissolved oxygen concentration, nutrients and other chemical and hydrographic parameters obtained during the R/V Ramón Margalef RADPROF 2022 cruise (EXPOCODE 29RM20220614) in the North East Atlantic Ocean from 2022-06-14 to 2022-06-25. The RADPROF project is an annual routine monitoring activity associated with the Finisterre deep section, RADPROF, which contributes to the IEO oceanography observation system, IEOOS since 2003. RADPROF contributes to time series of hydrography, circulation, inorganic biogeochemistry and biology in the slope region of the Galicia-Cantabrian region, passing through the protected area of the Bank of Galicia since 2014. The time series began in 2003 with the VACLAN National Plan project, continued by COVACLAN (2005) and later integrated as a structural program of the IEO under the pseudonym RADPROF. The basic activity is reinforced and expanded thanks to competitive projects of the National Plan such as MODUPLAN (2014), or Interreg EU iFADO (2020), complementary sampling activities using gliders (FinisGlider). Currently RADPROF is basic in Chapter 6 of the Marine Strategy Framework Directive, as it also would be for the Ocean Acidification and Prevailing Conditions chapter. From 2024 to 2026 it will contribute to the EuroGOSHIP project in support of the improvement of European hydrography. RADPROF is recognized as a GO-SHIP Associated line due to the high density and quality of its thermohaline, circulation and inorganic biogeochemistry data, especially CO2 variables.

This dataset contains discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, water temperature, salinity, dissolved oxygen concentration, nutrients and other chemical and hydrographic parameters obtained during the R/V Ramón Margalef RADPROF 2016 cruise (EXPOCODE 29RM20160815) in the North East Atlantic Ocean from 2016-08-15 to 2016-08-26. The RADPROF project is an annual routine monitoring activity associated with the Finisterre deep section, RADPROF, which contributes to the IEO oceanography observation system, IEOOS since 2003. RADPROF contributes to time series of hydrography, circulation, inorganic biogeochemistry and biology in the slope region of the Galicia-Cantabrian region, passing through the protected area of the Bank of Galicia since 2014. The time series began in 2003 with the VACLAN National Plan project, continued by COVACLAN (2005) and later integrated as a structural program of the IEO under the pseudonym RADPROF. The basic activity is reinforced and expanded thanks to competitive projects of the National Plan such as MODUPLAN (2014), or Interreg EU iFADO (2020), complementary sampling activities using gliders (FinisGlider). Currently RADPROF is basic in Chapter 6 of the Marine Strategy Framework Directive, as it also would be for the Ocean Acidification and Prevailing Conditions chapter. From 2024 to 2026 it will contribute to the EuroGOSHIP project in support of the improvement of European hydrography. RADPROF is recognized as a GO-SHIP Associated line due to the high density and quality of its thermohaline, circulation and inorganic biogeochemistry data, especially CO2 variables.

This dataset contains discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, water temperature, salinity, dissolved oxygen concentration, nutrients and other chemical and hydrographic parameters obtained during the R/V Ramón Margalef RADPROF 2021 cruise (EXPOCODE 29RM20210814) in the North East Atlantic Ocean from 2021-08-14 to 2021-08-23. The RADPROF project is an annual routine monitoring activity associated with the Finisterre deep section, RADPROF, which contributes to the IEO oceanography observation system, IEOOS since 2003. RADPROF contributes to time series of hydrography, circulation, inorganic biogeochemistry and biology in the slope region of the Galicia-Cantabrian region, passing through the protected area of the Bank of Galicia since 2014. The time series began in 2003 with the VACLAN National Plan project, continued by COVACLAN (2005) and later integrated as a structural program of the IEO under the pseudonym RADPROF. The basic activity is reinforced and expanded thanks to competitive projects of the National Plan such as MODUPLAN (2014), or Interreg EU iFADO (2020), complementary sampling activities using gliders (FinisGlider). Currently RADPROF is basic in Chapter 6 of the Marine Strategy Framework Directive, as it also would be for the Ocean Acidification and Prevailing Conditions chapter. From 2024 to 2026 it will contribute to the EuroGOSHIP project in support of the improvement of European hydrography. RADPROF is recognized as a GO-SHIP Associated line due to the high density and quality of its thermohaline, circulation and inorganic biogeochemistry data, especially CO2 variables.

This dataset contains discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, water temperature, salinity, dissolved oxygen concentration, nutrients and other chemical and hydrographic parameters obtained during the R/V Ramón Margalef RADPROF 2019 cruise (EXPOCODE 29RM20190818) in the North East Atlantic Ocean from 2019-08-18 to 2019-08-29. The RADPROF project is an annual routine monitoring activity associated with the Finisterre deep section, RADPROF, which contributes to the IEO oceanography observation system, IEOOS since 2003. RADPROF contributes to time series of hydrography, circulation, inorganic biogeochemistry and biology in the slope region of the Galicia-Cantabrian region, passing through the protected area of the Bank of Galicia since 2014. The time series began in 2003 with the VACLAN National Plan project, continued by COVACLAN (2005) and later integrated as a structural program of the IEO under the pseudonym RADPROF. The basic activity is reinforced and expanded thanks to competitive projects of the National Plan such as MODUPLAN (2014), or Interreg EU iFADO (2020), complementary sampling activities using gliders (FinisGlider). Currently RADPROF is basic in Chapter 6 of the Marine Strategy Framework Directive, as it also would be for the Ocean Acidification and Prevailing Conditions chapter. From 2024 to 2026 it will contribute to the EuroGOSHIP project in support of the improvement of European hydrography. RADPROF is recognized as a GO-SHIP Associated line due to the high density and quality of its thermohaline, circulation and inorganic biogeochemistry data, especially CO2 variables.

This dataset contains discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, water temperature, salinity, dissolved oxygen concentration, nutrients and other chemical and hydrographic parameters obtained during the R/V Sarmiento de Gamboa RADPROF 2020 cruise (EXPOCODE 29AH20200710) in the North East Atlantic Ocean from 2020-07-08 to 2020-07-22 The RADPROF project is an annual routine monitoring activity associated with the Finisterre deep section, RADPROF, which contributes to the IEO oceanography observation system, IEOOS since 2003. RADPROF contributes to time series of hydrography, circulation, inorganic biogeochemistry and biology in the slope region of the Galicia-Cantabrian region, passing through the protected area of the Bank of Galicia since 2014. The time series began in 2003 with the VACLAN National Plan project, continued by COVACLAN (2005) and later integrated as a structural program of the IEO under the pseudonym RADPROF. The basic activity is reinforced and expanded thanks to competitive projects of the National Plan such as MODUPLAN (2014), or Interreg EU iFADO (2020), complementary sampling activities using gliders (FinisGlider). Currently RADPROF is basic in Chapter 6 of the Marine Strategy Framework Directive, as it also would be for the Ocean Acidification and Prevailing Conditions chapter. From 2024 to 2026 it will contribute to the EuroGOSHIP project in support of the improvement of European hydrography. RADPROF is recognized as a GO-SHIP Associated line due to the high density and quality of its thermohaline, circulation and inorganic biogeochemistry data, especially CO2 variables.

This dataset includes dissolved inorganic carbon, pH on total scale, alkalinity, water temperature, salinity dissolved oxygen and nutrients collected from discrete samples and profile observations using during the R/V Ryofu Maru cruise RF12_06 (EXPOCODE 49UP20120726) in the North Pacific Ocean from 2012-07-26 to 2012-09-13. The instruments used to collect these data include CTD and Niskin bottle. These data were collected by Hitomi Kamiya and Kazuhiro Nemoto of Japan Meteorological Agency (JMA) as part of the CLIVAR_P02.5_2012 dataset. The International CLIVAR Global Ocean Carbon and Repeat Hydrography Program carries out a systematic and global re-occupation of select WOCE/JGOFS hydrographic sections to quantify changes in storage and transport of heat, fresh water, carbon dioxide (CO2), and related parameters.

This dataset includes chemical, discrete sample, physical and profile data collected from ROGER REVELLE in the South Pacific Ocean from 1997-12-02 to 1998-01-03 and retrieved during cruise AESOPS RR_KIWI-7 and Ross_Sea_33RR19971202. These data include ALKALINITY, AMMONIUM, DISSOLVED INORGANIC CARBON, DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, NITRATE, NITRITE, PARTICULATE ORGANIC CARBON, PARTICULATE ORGANIC NITROGEN, PHOSPHATE, Potential temperature (theta), SALINITY, SILICATE, Total Organic Carbon (TOC), WATER TEMPERATURE and pH. The instruments used to collect these data include CTD and bottle. These data were collected by Richard T. Barber of Duke University and Frank J. Millero of Rosenstiel School of Marine and Atmospheric Science (RSMAS) as part of the CLIVAR_Ross_Sea_33RR19971202 dataset. The International CLIVAR Global Ocean Carbon and Repeat Hydrography Program carries out a systematic and global re-occupation of select WOCE/JGOFS hydrographic sections to quantify changes in storage and transport of heat, fresh water, carbon dioxide (CO2), and related parameters.

This dataset consists of dissolved inorganic carbon, total alkalinity, pH on total scale, and other variables collected from discrete samples and profile observations during the R/V F. G. Walton Smith cruise WS25024 (EXPOCODE 33WA20250124) in the North Atlantic Ocean and Gulf of America from from 2025-01-24 to 2025-01-31. 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.