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Data for Novel field trial for ocean alkalinity enhancement using electrochemically derived aqueous alkalinity from 2024-11-07 to 2025-02-08 (NCEI Accession 0307424)
Ocean alkalinity enhancement is a proposed method of marine carbon dioxide removal that enhances the ocean’s uptake of atmospheric carbon dioxide (CO2) and converts it to dissolved bicarbonate for long-term ocean storage. This method of marine carbon dioxide removal has been gaining attention for its potential to durably (10,000+ years) store large amounts of CO2 (Gt+ where 1 Gt = 1 x 10^9 tons), while potentially ameliorating acidification in the vicinity of the alkalinity release. This study focuses on a novel release of electrochemically derived aqueous alkalinity into Sequim Bay, WA, through a previously established wastewater treatment plant (WWTP). This research was made possible through the collaboration of industry, academic, and federal partners, which enabled the establishment of an Ebb Carbon electrochemical mCDR system at the Pacific Northwest National Laboratory in Sequim, WA, for ocean alkalinity enhancement field trials. During these field trials, pH was measured across the WWTP system from the initial alkalinity dosing, throughout the WWTP, and at the outfall. We use the NBS scale for pH throughout this study as it is the scale used in discharge permit limits specified for WWTP and NPDES regulation and compliance monitoring. The background pHNBS of Sequim Bay seawater was between 7.5 to 7.7 for the November and February field tests. The mixing tank's pHNBS was raised to the maximum value permitted for the WWTP (9.0) and maintained across the system (±0.2) during the outfall releases. At the outfall, the elevated pH and alkalinity was quickly diluted, such that the region with a measurable signal was limited to within ~2.5 m of the discharge pipe. We were able to successfully monitor an increase in pHNBS across all four pulses of alkalinity-enhanced seawater discharge during the February 2025 field trial, with peak pHNBS values of 8.3 or 8.1, as recorded by outfall-adjacent YSI Exo 2 sonde and SAMI-pH sensors, respectively. The alkalinity-enhanced seawater did not measurably alter the surrounding waters' temperature, salinity, turbidity, or oxygen. This study provides proof-of-concept for a conservative small-scale release of electrochemically generated alkalinity-enhanced seawater from a coastal outfall.
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PH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from THALASSA in the North Atlantic Ocean from 2010-06-08 to 2010-06-30 (NCEI Accession 0112842)
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This dataset includes discrete sample and profile data collected from THALASSA in the North Atlantic Ocean from 2010-06-08 to 2010-06-30 and retrieved during cruise CLIVAR_OVIDE_2010. These data include DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, NITRATE, Potential temperature (theta), SALINITY, TOTAL ALKALINITY (TA), WATER TEMPERATURE, pH, phosphate and silicate. The instruments used to collect these data include Alkalinity titrator, CTD, bottle and spectrophotometer. These data were collected by Herlé Mercier of IFREMER Centre de Brest and AÃda F. RÃos and Fiz F. Pérez of Institute of Marine Research Vigo (IIM) as part of the CLIVAR_OVIDE_2010 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.
pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the BELGICA in the North Atlantic Ocean from 2008-05-07 to 2008-05-23 (NCEI Accession 0112840)
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This dataset includes chemical, discrete sample, physical and profile data collected from BELGICA in the North Atlantic Ocean from 2008-05-07 to 2008-05-23. These data include ALKALINITY, DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, PHOSPHATE, Potential temperature (theta), SALINITY, WATER TEMPERATURE and pH. The instruments used to collect these data include Alkalinity titrator, CTD, bottle and pH meter. These data were collected by Alberto Borges of University of Liege and Lei Chou of Université Libre de Bruxelles as part of the COASTAL_Belgica_2008_12 dataset. CDIAC assigned the following cruise ID(s) to this dataset: COASTAL_Belgica_2008_12. The Global Coastal Carbon Data Project data includes the bottle (discrete) and surface (underway) carbon-related measurements from coastal research cruises, the data from time series cruises and coastal moorings. The coastal regions data are very important for the understanding of carbon cycle on the continental margins.
PH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from THALASSA in the North Atlantic Ocean from 2002-06-11 to 2002-07-11 (NCEI Accession 0113917)
공공데이터포털
This dataset includes discrete sample and profile data collected from THALASSA in the North Atlantic Ocean from 2002-06-11 to 2002-07-11. These data include DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, NITRATE, Potential temperature (theta), SALINITY, TOTAL ALKALINITY (TA), WATER TEMPERATURE, pH, phosphate and silicate. The instruments used to collect these data include Alkalinity titrator, CTD, bottle and spectrophotometer. These data were collected by Herlé Mercier of IFREMER Centre de Brest, Fiz F. Pérez of Institute of Marine Research Vigo (IIM), and Marta Álvarez of Spanish Institute of Oceanography (IEO) as part of the CARINA_35TH20020611_OVIDE 2002 dataset. CDIAC associated the following cruise ID(s) with this dataset: OVIDE 2002 The CARINA (CARbon dioxide IN the Atlantic Ocean) data synthesis project is an international collaborative effort of the EU IP CARBOOCEAN, and U.S. partners. It has produced a merged internally consistent dataset of open ocean subsurface measurements for biogeochemical investigations, in particular, studies involving the carbon system. The original focus area was the North Atlantic Ocean, but over time the geographic extent expanded and CARINA now includes data from the entire Atlantic, the Arctic Ocean, and the Southern Ocean.
pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the BELGICA in the North Atlantic Ocean from 2006-05-31 to 2006-06-09 (NCEI Accession 0112838)
공공데이터포털
This dataset includes chemical, discrete sample, physical and profile data collected from BELGICA in the North Atlantic Ocean from 2006-05-31 to 2006-06-09. These data include ALKALINITY, DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, PHOSPHATE, Potential temperature (theta), SALINITY, SILICATE, WATER TEMPERATURE and pH. The instruments used to collect these data include Alkalinity titrator, CTD, bottle and pH meter. These data were collected by Alberto Borges of University of Liege and Lei Chou of Université Libre de Bruxelles as part of the COASTAL_Belgica_2006_11 dataset. CDIAC assigned the following cruise ID(s) to this dataset: COASTAL_Belgica_2006_11. The Global Coastal Carbon Data Project data includes the bottle (discrete) and surface (underway) carbon-related measurements from coastal research cruises, the data from time series cruises and coastal moorings. The coastal regions data are very important for the understanding of carbon cycle on the continental margins.
Ocean Acidification Product Suite
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Scientists within the ACCRETE (Acidification, Climate, and Coral Reef Ecosystems Team) Lab of AOML_s Ocean Chemistry and Ecosystems Division (OCED) have constructed a tool to monitor ocean acidification over the wider Caribbean and Gulf of Mexico. This tool utilizes satellite data and a data-assimilative hybrid model to map the components of the carbonate system of surface water. This effort represents an update to the experimental Ocean Acidification Product Suite (OAPS) developed by Coral Reef Watch (http://coralreefwatch.noaa.gov/satellite/oa/index.php). To resolve the seawater carbonic acid system, we use the partial pressure of CO2 (pCO2) and pH. Surface pCO2 is approximated by taking total tropospheric column CO2 from the AIRS mid-tropospheric CO2 and AMSU instruments on board the Aqua satellite (http://disc.sci.gsfc.nasa.gov/AIRS/data-holdings/by-data-product-v5/AIRX3C2M) and adjusting it for the marine boundary layer by replacing the annual cycle of the observed AIRS data with that from the NOAA Marine Boundary Layer (http://www.esrl.noaa.gov/gmd/ccgg/mbl/). Following this adjustment, seawater pCO2 is estimated using an empirical model relating the differential between sea surface and atmospheric CO2 partial pressure to changes in CO2 gas solubility (K0). Total alkalinity (TA) is calculated using the Subtropical/Tropical algorithm from Lee et al. (2006). Sea surface temperature is derived from an optimal interpolated product at 9km resolution (http://www.remss.com/measurements/sea-surface-temperature/oisst-description) and salinity is obtained from a data-assimilative hybrid model (HYCOM https://hycom.org/). These measurements, together with pCO2 and TA, allow calculation the complete carbonate system. Data are updated monthly at a 9km resolution. Initial results indicate good agreement with observed values from cruises and MAPCO2 buoys, but further testing and refinement of algorithms is planned.
pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the BELGICA in the North Atlantic Ocean from 2007-05-10 to 2007-05-24 (NCEI Accession 0112839)
공공데이터포털
This dataset includes chemical, discrete sample, physical and profile data collected from BELGICA in the North Atlantic Ocean from 2007-05-10 to 2007-05-24. These data include ALKALINITY, DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, PHOSPHATE, Potential temperature (theta), SALINITY, WATER TEMPERATURE and pH. The instruments used to collect these data include Alkalinity titrator, CTD, bottle and pH meter. These data were collected by Alberto Borges of University of Liege and Lei Chou of Université Libre de Bruxelles as part of the COASTAL_Belgica_2007_12 dataset. CDIAC assigned the following cruise ID(s) to this dataset: COASTAL_Belgica_2007_12. The Global Coastal Carbon Data Project data includes the bottle (discrete) and surface (underway) carbon-related measurements from coastal research cruises, the data from time series cruises and coastal moorings. The coastal regions data are very important for the understanding of carbon cycle on the continental margins.
Dissolved inorganic carbon, pH and other variables measured from laboratory experiment studies from an experimental carbonate exposure system from 2012-02-29 to 2012-05-11 (NCEI Accession 0123315)
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This dataset contains the carbon chemistry measurements of a laboratory experiment study to understand the effects of ocean acidification on winter flounder. To address the goals of the NOAA Ocean Acidification Program (OA), the James J. Howard Laboratory constructed an OA experimental system to conduct OA experiments on commercially important species native to Atlantic waters of the NE U.S. The species of interest exhibit a broad range of ecological and life-history types from entirely marine to entirely estuarine. In order to conduct OA experiments on several different species, the required experimental system was able to mimic both estuarine and oceanic conditions. This system was designed to produce 5 pCO2 concentrations above an ambient pCO2 treatment and 5 temperature regimes. The system is also capable of manipulating dissolved oxygen, salinity, and other biogeochemicals common to a benthic habitat. The analytical laboratory conducts analysis according to the guidelines developed by the ocean acidification subcommittee of the Ocean Carbon and Biogeochemistry Program. When followed correctly, these guidelines should produce data with a high degree of accuracy and precision.
Dissolved inorganic carbon, pH and other variables measured from laboratory experiment studies from an experimental carbonate exposure system from 2013-05-15 to 2013-07-12 (NCEI Accession 0123316)
공공데이터포털
This dataset contains the carbon chemistry measurements of a laboratory experiment study to understand the effects of ocean acidification on winter flounders. To address the goals of the NOAA Ocean Acidification Program (OA), the James J. Howard Laboratory constructed an OA experimental system to conduct OA experiments on commercially important species native to Atlantic waters of the NE U.S. The species of interest exhibit a broad range of ecological and life-history types from entirely marine to entirely estuarine. In order to conduct OA experiments on several different species, the required experimental system was able to mimic both estuarine and oceanic conditions. This system was designed to produce 5 pCO2 concentrations above an ambient pCO2 treatment and 5 temperature regimes. The system is also capable of manipulating dissolved oxygen, salinity, and other biogeochemicals common to a benthic habitat. The analytical laboratory conducts analysis according to the guidelines developed by the ocean acidification subcommittee of the Ocean Carbon and Biogeochemistry Program. When followed correctly, these guidelines should produce data with a high degree of accuracy and precision.
Dissolved inorganic carbon, pH and other variables measured from laboratory experiment studies from an experimental carbonate exposure system from 2013-12-09 to 2014-01-31 (NCEI Accession 0123317)
공공데이터포털
This dataset contains the carbon chemistry measurements of a laboratory experiment study to understand the effects of ocean acidification on winter flounders. To address the goals of the NOAA Ocean Acidification Program (OA), the James J. Howard Laboratory constructed an OA experimental system to conduct OA experiments on commercially important species native to Atlantic waters of the NE U.S. The species of interest exhibit a broad range of ecological and life-history types from entirely marine to entirely estuarine. In order to conduct OA experiments on several different species, the required experimental system was able to mimic both estuarine and oceanic conditions. This system was designed to produce 5 pCO2 concentrations above an ambient pCO2 treatment and 5 temperature regimes. The system is also capable of manipulating dissolved oxygen, salinity, and other biogeochemicals common to a benthic habitat. The analytical laboratory conducts analysis according to the guidelines developed by the ocean acidification subcommittee of the Ocean Carbon and Biogeochemistry Program. When followed correctly, these guidelines should produce data with a high degree of accuracy and precision.
pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the BELGICA in the North Sea from 2006-04-25 to 2006-05-11 (NCEI Accession 0112762)
공공데이터포털
This dataset includes chemical, discrete sample, physical and profile data collected from BELGICA in the North Sea from 2006-04-25 to 2006-05-11. These data include ALKALINITY, DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, Potential temperature (theta), SALINITY, WATER TEMPERATURE and pH. The instruments used to collect these data include Alkalinity titrator, CTD, bottle and pH meter. These data were collected by Alberto Borges of University of Liege and Lei Chou of Université Libre de Bruxelles as part of the COASTAL_Belgica_2006_09 dataset. CDIAC assigned the following cruise ID(s) to this dataset: COASTAL_Belgica_2006_09. The Global Coastal Carbon Data Project data includes the bottle (discrete) and surface (underway) carbon-related measurements from coastal research cruises, the data from time series cruises and coastal moorings. The coastal regions data are very important for the understanding of carbon cycle on the continental margins.
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