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Dissolved inorganic carbon, total alkalinity, pH, nutrients, and other variables collected from discrete profile observations in the southwest coast of Puerto Rico from 2009-01-16 to 2024-04-04 (NCEI Accession 0188506)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: October 13, 2025 | Last Modified: 2025-04-24T00:00:00.000+00:00
This time series dataset includes weekly and bi-weekly discrete seawater samples of pH and total alkalinity, dissolved inorganic carbon, phosphates and profile measurements of temperature and salinity from 2009 to 2024. These are used to track the dynamics and controls on local carbon chemistry at the southwest part of Puerto Rico in support of the ocean acidification and water quality research in regional coastal and near-shore zones. Some of these environmental parameters have been monitored since 2009 when the National Oceanic and Atmospheric Administration (NOAA) Coral Health and Monitoring Program established the Atlantic Ocean Acidification Test-Bed (AOAT) at the Marine Reserve of La Parguera, Puerto Rico. As a key part of this project, a moored autonomous pCO_2 system (MAPCO2) was deployed along the fore-reef of Enrique shelf reef and a discrete sampling at the Marine Reserve for data validation and calibration commenced. This monitoring effort supports the requirements of the recent implementation of La Parguera as a Class III climate and ecosystem monitoring station through the National Coral Reef Monitoring Program (NCRMP) in support of the NOAA Coral Reef Conservation Program (CRCP) and the Ocean Acidification Program (OAP).

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0188506 DISSOLVED INORGANIC CARBON (DIC) NITRATE pH phosphate Potential temperature (theta) SALINITY SIGMA-THETA silicate total alkalinity WATER TEMPERATURE CTD Niskin bottle Non-dispersive infrared (NDIR) dissolved inorganic carbon (DIC) analyzer spectrophotometer thermosalinograph titrator discrete sample profile University of Puerto Rico-Mayaguez University of Puerto Rico-Mayaguez CORAL REEF STUDIES NODC Ocean Acidification Scientific Data Stewardship (OADS) US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP) Caribbean Sea oceanography Ocean Acidification Program (OAP) Ocean Carbon and Acidification Data System (OCADS) Project EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > POTENTIAL TEMPERATURE EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > DENSITY EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY Discrete measurement Profile CTDPRS_DBAR CTDSAL_PSS78 CTDTMP_ITS90_DEG_C DEPTH_BTM_METER DEPTH_METER DIC_umol_KG NITRATE_UMOL_KG PHOSPHATE_UMOL_KG PH_TOT_INSITU SIGMATHETA_KG_M3 SILICATE_UMOL_KG TA_umol_KG THETA_DEG_C CO2NDIR > Carbon Dioxide Nondispersive Infrared Analyzer CTD > Conductivity, Temperature, Depth NISKIN BOTTLES OPTSPEC > Optical Spectrometer THERMOSALINOGRAPHS OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA Caribbean Sea

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