Seawater samples were collected in Chesapeake Bay for dissolved inorganic carbon (DIC) and total alkalinity (TA) from June 2016 to July 2018. They were collected in the lower half of the Bay aboard the R/V Fay Slover in collaboration with Old Dominion University's Chesapeake Bay Program Water Quality Laboratory and the VA Dept. of Environmental Quality. In the upper half of the Bay, samples were collected aboard the R/V Kerhin in collaboration with the Maryland Department of Natural Resources' Chesapeake Bay Water Quality Monitoring Program. Additional water quality parameters from the cruises were downloaded from the Chesapeake Bay program website. Additional carbonate system parameters were then computed from DIC and TA

Seawater samples were collected in Chesapeake Bay for dissolved inorganic carbon (DIC) and total alkalinity (TA) from June 2016 to July 2018. They were collected in the lower half of the Bay aboard the R/V Fay Slover in collaboration with Old Dominion University's Chesapeake Bay Program Water Quality Laboratory and the VA Dept. of Environmental Quality. In the upper half of the Bay, samples were collected aboard the R/V Kerhin in collaboration with the Maryland Department of Natural Resources' Chesapeake Bay Water Quality Monitoring Program. Additional water quality parameters from the cruises were downloaded from the Chesapeake Bay program website. Additional carbonate system parameters were then computed from DIC and TA

Seawater samples were collected in Chesapeake Bay for dissolved inorganic carbon (DIC) and total alkalinity (TA) from June 2016 to July 2018. They were collected in the lower half of the Bay aboard the R/V Fay Slover in collaboration with Old Dominion University's Chesapeake Bay Program Water Quality Laboratory and the VA Dept. of Environmental Quality. In the upper half of the Bay, samples were collected aboard the R/V Kerhin in collaboration with the Maryland Department of Natural Resources' Chesapeake Bay Water Quality Monitoring Program. Additional water quality parameters from the cruises were downloaded from the Chesapeake Bay program website. Additional carbonate system parameters were then computed from DIC and TA

Seawater samples were collected in Chesapeake Bay for dissolved inorganic carbon (DIC) and total alkalinity (TA) from June 2016 to July 2018. They were collected in the lower half of the Bay aboard the R/V Fay Slover in collaboration with Old Dominion University's Chesapeake Bay Program Water Quality Laboratory and the VA Dept. of Environmental Quality. In the upper half of the Bay, samples were collected aboard the R/V Kerhin in collaboration with the Maryland Department of Natural Resources' Chesapeake Bay Water Quality Monitoring Program. Additional water quality parameters from the cruises were downloaded from the Chesapeake Bay program website. Additional carbonate system parameters were then computed from DIC and TA

Seawater samples were collected in Chesapeake Bay for dissolved inorganic carbon (DIC) and total alkalinity (TA) from June 2016 to July 2018. They were collected in the lower half of the Bay aboard the R/V Fay Slover in collaboration with Old Dominion University's Chesapeake Bay Program Water Quality Laboratory and the VA Dept. of Environmental Quality. In the upper half of the Bay, samples were collected aboard the R/V Kerhin in collaboration with the Maryland Department of Natural Resources' Chesapeake Bay Water Quality Monitoring Program. Additional water quality parameters from the cruises were downloaded from the Chesapeake Bay program website. Additional carbonate system parameters were then computed from DIC and TA

This dataset contains discrete bottle sample data for total Dissolved Inorganic Carbon (DIC) and Total Alkalinity (TAlk), water temperature and salinity samples, collected for validation and internal consistency analyses at the First Landing MAPCO2 system in the mouth of the Chesapeake Bay (36.9981 N, -76.0873 W). Samples were collected and immediately preserved with 0.2 µL of saturated Mercuric Chloride from 2018-05-02 to 2020-10-06. Samples were transported to the Cai-Laboratory at the University of Delaware for analysis. DIC is analyzed via a nondispersive infrared laser LICOR analyzer after 1 ml of 10% H3PO4 is injected into the sample and the CO2 gas is “stripped” out. TAlk is measured via Gran titration with HCl to an end-point of pH 3.2. The method precision is >0.1%. This effort was conducted in support of the coastal monitoring and research objectives of the NOAA Ocean Acidification Program (OAP).

To investigate the seasonal variation of the inorganic carbon system in the Delaware Estuary, one of the largest estuaries along the U.S. east coast, pH, dissolved inorganic carbon (DIC), total alkalinity (TA), and the partial pressure of carbon dioxide were measured along the estuary from June 2013 to April 2015.

This dataset contains dissolved inorganic carbon, total alkalinity, pH, nutrients and other variables collected from surface discrete sampling using flow through pump and other instruments from NOAA Ship Gordon Gunter in the U.S. East Coast during the East Coast Ocean Acidification (GU-15-04 ECOA1). The East Coast Ocean Acidification (ECOA) Cruise on board the R/V Gordan Gunter from Newport, took place in the Gulf of Maine and then along the East US coast to Miami. The effort was in support of the coastal monitoring and research objectives of the NOAA Ocean Acidification Program (OAP). The cruise was designed to obtain a snapshot of key carbon, physical, and biogeochemical parameters as they relate to ocean acidification (OA) in the coastal realm. The cruise included a series of 11 transects approximately orthogonal to the Gulf of Maine and Atlantic coasts and a comprehensive set of underway measurements along the entire transect.

This dataset consists of dissolved inorganic carbon, total alkalinity, water temperature and salinity from laboratory analyzed discrete water samples taken at the Central Gulf of Mexico Ocean Observing System buoy moored at 28.9N, 90.5W off Coastal Louisiana from 2017-07-14 to 2022-02-20. These are validation samples for the NOAA Pacific Marine Environmental Laboratory (PMEL) Moored Autonomous pCO2 (MAPCO2®) system buoy CoastalLA_91W_30N, that includes SeaBird CTD and SAMI pH instruments.

This dataset contains discrete measurements of water temperature, salinity, total dissolved inorganic carbon (DIC), total titration alkalinity (TA), pH on total scale, and calcium concentration. These data were collected between April 2014 and April 2018 in Lavaca-Matagorda, Guadalupe-San Antonio, Nueces-Corpus Christi estuaries along the northwestern Gulf of Mexico.