Dissolved inorganic carbon, total alkalinity, water temperature and salinity collected from surface discrete observations using coulometer, alkalinity titrator and other instruments from the coral reef MAPCO2 buoys at Ala Wai, CRIMP-2, Kaneohe, and Kilo Nalu from 2016-01-08 to 2024-12-04 (NCEI Accession 0176671)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 26, 2026 | Last Modified: 2025-03-31T00:00:00.000+00:00

This dataset contains bottle data for dissolved inorganic carbon (DIC) and total alkalinity (TA) for the period January 2016 through December 2024. The bottle samples were collected approximately every two weeks, weather permitting, from approximately 20 cm below the sea surface at the four buoys comprising our network. Commonly challenging weather and sea state conditions at the Kaneohe buoy have rendered the collection of bottle-validation samples more difficult, hence fewer data are available for this station. Collection of samples at the CRIMP-2, Ala Wai, and Kilo Nalu buoys, however, has been more readily achievable and proportionally more data are available for these buoys.

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description	This dataset contains bottle data for dissolved inorganic carbon (DIC) and total alkalinity (TA) for the period January 2016 through December 2024. The bottle samples were collected approximately every two weeks, weather permitting, from approximately 20 cm below the sea surface at the four buoys comprising our network. Commonly challenging weather and sea state conditions at the Kaneohe buoy have rendered the collection of bottle-validation samples more difficult, hence fewer data are available for this station. Collection of samples at the CRIMP-2, Ala Wai, and Kilo Nalu buoys, however, has been more readily achievable and proportionally more data are available for these buoys.
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identifier	gov.noaa.nodc:0176671
issued	2018-10-09T00:00:00.000+00:00
keyword	[ "0176671", "AMMONIA (NH3)", "CHLOROPHYLL A", "DISSOLVED INORGANIC CARBON (DIC)", "nitrate + nitrite content (concentration)", "phosphate", "SALINITY", "silicate", "total alkalinity", "Total nitrogen", "WATER TEMPERATURE", "bottle", "coulometer for DIC measurement", "thermosalinograph", "titrator", "discrete sample", "surface measurements", "University of Hawaii, Marine Laboratory", "University of Hawaii, Marine Laboratory", "Ocean Carbon and Acidification Data System (OCADS)", "US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP)", "Coastal Waters of Hawaii", "North Pacific Ocean", "oceanography", "Ocean Acidification Program (OAP)", "Ocean Carbon and Acidification Data System (OCADS) Project", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > AMMONIA", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE", "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE", "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY", "Discrete measurement", "Surface measurement", "ALKALI", "AMMONIA_UMOL_L", "CHLA_MG_M3", "CTDSAL", "CTDTMP", "NITRATE_NITRITE_UMOL_L", "PHOSPHATE_UMOL_L", "SILICATE_UMOL_L", "TCARBN", "TOTAL_NITROGEN_UMOL_L", "TOTAL_PHOSPHOROUS_UMOL_L", "COULOMETERS", "THERMOSALINOGRAPHS", "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HAWAIIAN ISLANDS", "OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN", "Kaneohe Bay, Oahu, Hawaii", "Mamala Bay, Oahu, Hawaii", "North Pacific Ocean" ]
landingPage	https://www.ncei.noaa.gov/contact
language	[]
license	https://creativecommons.org/publicdomain/zero/1.0/
modified	2025-03-31T00:00:00.000+00:00
publisher	{ "name": "NOAA National Centers for Environmental Information", "@type": "org:Organization" }
references	[ "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Moorings/Kilo_Nalu.html", "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Moorings/Ala_Wai.html", "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Moorings/CRIMP2.html", "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Moorings/Kaneohe.html", "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system" ]
rights	otherRestrictions
spatial	-157.783,21.28,-157.865,21.48
temporal	2016-01-08T00:00:00+00:00/2024-12-04T00:00:00+00:00
title	Dissolved inorganic carbon, total alkalinity, water temperature and salinity collected from surface discrete observations using coulometer, alkalinity titrator and other instruments from the coral reef MAPCO2 buoys at Ala Wai, CRIMP-2, Kaneohe, and Kilo Nalu from 2016-01-08 to 2024-12-04 (NCEI Accession 0176671)