Pacific Reef Assessment and Monitoring Program: Dissolved inorganic carbon, total alkalinity, pH and other variables collected from surface discrete measurements using Coulometer, alkalinity titrator and other instruments from the US Pacific Islands from 2006-02-12 to 2012-05-18 (NCEI Accession 0232262)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 29, 2026 | Last Modified: 2021-05-07T00:00:00.000+00:00

This dataset contains the Pacific Reef Assessment and Monitoring Program (RAMP) carbonate chemistry data from American Samoa, Pacific Remote Island Areas, Guam and the Commonwealth of the Northern Marianas Islands, and the Hawaiian Archipelago from 2006-02-12 to 2012-05-18. The project monitors changes to coral reef carbonate chemistry over time, at U.S.-affiliated Pacific coral reef sites, through quantifying key chemical parameters that are expected to change with ocean acidification. Incorporating an interdisciplinary approach, this project collects, processes, analyzes, and stewards dissolved inorganic carbon (DIC) and total alkalinity (TA) water sample data to document seawater carbonate chemistry at monitoring sites in coral reef areas of the U.S. Pacific region.

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description	This dataset contains the Pacific Reef Assessment and Monitoring Program (RAMP) carbonate chemistry data from American Samoa, Pacific Remote Island Areas, Guam and the Commonwealth of the Northern Marianas Islands, and the Hawaiian Archipelago from 2006-02-12 to 2012-05-18. The project monitors changes to coral reef carbonate chemistry over time, at U.S.-affiliated Pacific coral reef sites, through quantifying key chemical parameters that are expected to change with ocean acidification. Incorporating an interdisciplinary approach, this project collects, processes, analyzes, and stewards dissolved inorganic carbon (DIC) and total alkalinity (TA) water sample data to document seawater carbonate chemistry at monitoring sites in coral reef areas of the U.S. Pacific region.
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identifier	gov.noaa.nodc:0232262
issued	2021-05-06T00:00:00.000+00:00
keyword	[ "0232262", "ARAGONITE SATURATION STATE", "CONDUCTIVITY", "DEPTH - OBSERVATION", "DISSOLVED INORGANIC CARBON (DIC)", "HYDROSTATIC PRESSURE", "partial pressure of carbon dioxide - water", "pH", "SALINITY", "total alkalinity", "WATER DENSITY", "WATER TEMPERATURE", "coulometer for DIC measurement", "CTD", "Niskin bottle", "thermometer", "thermosalinograph", "titrator", "discrete sample", "surface measurements", "survey - coral reef", "water chemistry", "NOAA Ship Hi'ialakai", "NOAA Ship Oscar Elton Sette", "NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division", "NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division", "Coral Reef Conservation Program (CRCP)", "CORAL REEF STUDIES", "NODC Ocean Acidification Scientific Data Stewardship (OADS)", "Pacific Reef and Assessment Monitoring Program (Pacific RAMP)", "US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP)", "Hawaiian Islands Humpback Whale National Marine Sanctuary", "National Marine Sanctuary of American Samoa", "North Pacific Ocean", "Papahānaumokuākea Marine National Monument", "Philippine Sea", "Rose Atoll Marine National Monument", "South Pacific Ocean", "oceanography", "DOC/NOAA/NMFS/PIFSC/ESD > Ecosystem Sciences Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce", "HA1007", "HA1008", "HA1101_LEGI", "HA1101_LEGII", "HA1101_LEGIII", "HA1201_LEGI", "HA1201_LEGII", "HA1201_LEGIII", "HA1201_LEGIV", "HI0602", "HI0802", "HI0803", "HI0809", "HI1001_LEGI", "HI1001_LEGII", "HI1001_LEGIII", "OES0810", "33HL20060209", "33HL20080218", "33HL20080321", "33HL20080912", "33HL20100121", "33HL20100217", "33HL20100327", "33HL20100904", "33HL20101007", "33HL20110310", "33HL20110407", "33HL20110430", "33HL20120227", "33HL20120401", "33HL20120427", "33OC20081016", "Ocean Acidification Program (OAP)", "Ocean Carbon and Acidification Data System (OCADS) Project", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBONATE", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH", "EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE", "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE", "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY", "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > DENSITY", "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY", "Discrete measurement", "Surface measurement", "ARAGONITE_SAT", "ASSOC_OCC_SITEID", "CAST_NUMBER", "CTDCASTID_ESD", "DAY_UTC", "DEPTH_METER", "DIC_UMOL_KG", "DIC_UMOL_KG_FLAG", "LATITUDE_DEC", "LOCATION", "LOCATIONCODE", "LONGITUDE_DEC", "MONTH_UTC", "PRESSURE_DB_CALCULATED", "PRESSURE_DB_CTD", "REGION", "REGIONCODE", "SALINITY_PSS78_BEST", "SALINITY_PSS78_BEST_ORIGIN", "SALINITY_PSS78_BOTTLE", "SALINITY_PSS78_BOTTLE_FLAG", "SALINITY_PSS78_CTD", "SALINITY_PSS78_CTD_FLAG", "SALINITY_PSS78_SCS", "SAMPLE_FREQUENCY", "SAMPLE_ID", "STATION_ID", "SURVEY_DESIGN", "TALK_UMOL_KG", "TALK_UMOL_KG_FLAG", "TEMPERATURE_ITS90_BEST", "TEMPERATURE_ITS90_BEST_ORIGIN", "TEMPERATURE_ITS90_CTD", "TEMPERATURE_ITS90_CTD_FLAG", "TEMPERATURE_ITS90_SCS", "TIMESTAMP_UTC", "TIME_UTC", "YEARDAY_UTC", "YEAR_UTC", "pCO2_UATM_CALCULATED", "pH_TS_CALCULATED", "COULOMETERS", "CTD > Conductivity, Temperature, Depth", "NISKIN BOTTLES", "THERMOMETERS > THERMOMETERS", "THERMOSALINOGRAPHS", "Ships", "Hi'ialakai (call sign: WTEY, ICES code: 33HL, 2004-)", "OSCAR ELTON SETTE (call sign: WTEE, ICES code: 33OC, 2003-)", "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > AMERICAN SAMOA", "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS", "OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN", "OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN", "American Samoa", "Guam and the Commonwealth of the Northern Marianas Islands", "Hawaiian Archipelago", "Line Islands", "Northwest Hawaiian Islands", "Pacific Ocean", "Pacific Remote Island Areas", "Phoenix Islands" ]
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modified	2021-05-07T00:00:00.000+00:00
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references	[ "https://doi.org/10.25921/nnk7-5f86", "https://doi.org/10.25921/vfz0-dg77", "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system" ]
rights	otherRestrictions
spatial	-154.9274,-14.55966,144.626,28.45365
temporal	2006-02-12T00:00:00+00:00/2012-05-18T00:00:00+00:00
title	Pacific Reef Assessment and Monitoring Program: Dissolved inorganic carbon, total alkalinity, pH and other variables collected from surface discrete measurements using Coulometer, alkalinity titrator and other instruments from the US Pacific Islands from 2006-02-12 to 2012-05-18 (NCEI Accession 0232262)