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: January 26, 2026 | 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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description	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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identifier	gov.noaa.nodc:0188506
issued	2019-05-06T00:00:00.000+00:00
keyword	[ "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" ]
landingPage	https://www.ncei.noaa.gov/contact
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modified	2025-04-24T00:00:00.000+00:00
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references	[ "https://www.ncei.noaa.gov/data/oceans/ncei/ocads/metadata/0145164.html", "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system" ]
rights	otherRestrictions
spatial	-67.0336,17.38,-67.0942,17.975
temporal	2009-01-16T00:00:00+00:00/2024-04-04T00:00:00+00:00
title	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)