Coastal Ocean Data Analysis Product in North America (CODAP-NA, Version 2021) (NCEI Accession 0219960)

This data package contains an internally consistent data product for discrete inorganic carbon, oxygen, and nutrients on the U.S. North American ocean margins, i.e., Coastal Ocean Data Analysis Product (CODAP-NA). It is created by compiling, quality controlling (QC), and synthesizing two decades of discrete measurements of inorganic carbon, oxygen, and nutrient chemistry data from North America’s U.S. coastal oceans. Due to the lack of deep-water sampling (>1500m), cross-over analyses were not conducted like the open ocean data products. Instead, only core data sets from laboratories with known quality assurance are included. Internal consistency checks and outlier detections are used to quality control the data. We worked closely with the investigators who collected and measured these data during the QC process. This version of the CODAP-NA is composed of 3,391 oceanographic profiles from 61 research cruises covering all continental shelves in North America (U.S. west coast, U.S. east coast, Gulf of Mexico, and Alaska coast). Data for 14 variables (temperature; salinity; dissolved oxygen concentration; dissolved inorganic carbon concentration; total alkalinity; pH on the Total Scale; carbonate ion concentration; fugacity of carbon dioxide; and concentrations of silicate, phosphate, nitrate, nitrite, nitrate plus nitrite, and ammonium) have been subjected to extensive quality control. Funding for this work comes from the National Oceanic and Atmospheric Administration (NOAA) Ocean Acidification Program (OAP, Project #: OAP 1903-1903).