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National Coral Reef Monitoring Program: Shallow Water Conductivity-Temperature-Depth (CTD) Profiles for select locations across the Pacific Remote Island Areas since 2014

Published by Pacific Islands Fisheries Science Center | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 02, 2026 at 11:18 PM | Dataset Last Updated: January 01, 2026 at 12:00 AM
The data described here result from near-shore shallow water Conductivity-Temperature-Depth (CTD) casts conducted at select sites across the Mariana Archipelago as part of the ongoing National Coral Reef Monitoring Program (NCRMP). These surveys were conducted by the NOAA Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD; formerly the Coral Reef Ecosystem Division) during ESD-led NCRMP missions to the PRIA from 2014 to 2025. The CTD casts provide vertical profiles (30-m max depth, downcast only) of water column conductivity, temperature, pressure, with calculated depth, salinity, and water density. The CTD (Sea-Bird Electronics, SBE19-plus in 2014-2018, RBR Concerto in 2023, 2025) was deployed from a small boat using a hand line and held just under the surface for 1 minute to cycle water through the instrument and tubing. Afterward, data were collected by lowering the CTD in profiling mode at an even pace (descent rate ~0.5 to 0.75 meters per second) to a maximum depth of 30 m. Data processing was performed using Sea-Bird Scientific SBE or RBR Ruskin Data Processing Software and the R package "oce".

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DOC/NOAA/NMFS/PIFSC/ESD > Ecosystem Sciences Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > REEF > CORAL REEF EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY > CONDUCTIVITY PROFILES EARTH SCIENCE > OCEANS > SALINITY/DENSITY > OCEAN SALINITY OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > BAKER ISLAND OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HOWLAND ISLAND OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > JARVIS ISLAND

Complete Metadata
@type dcat:Dataset
accessLevel non-public
contactPoint 
{
  "fn": "Barkley, Hannah C",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:hannah.barkley@noaa.gov"
}
describedByType application/octet-steam
description The data described here result from near-shore shallow water Conductivity-Temperature-Depth (CTD) casts conducted at select sites across the Mariana Archipelago as part of the ongoing National Coral Reef Monitoring Program (NCRMP). These surveys were conducted by the NOAA Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD; formerly the Coral Reef Ecosystem Division) during ESD-led NCRMP missions to the PRIA from 2014 to 2025. The CTD casts provide vertical profiles (30-m max depth, downcast only) of water column conductivity, temperature, pressure, with calculated depth, salinity, and water density. The CTD (Sea-Bird Electronics, SBE19-plus in 2014-2018, RBR Concerto in 2023, 2025) was deployed from a small boat using a hand line and held just under the surface for 1 minute to cycle water through the instrument and tubing. Afterward, data were collected by lowering the CTD in profiling mode at an even pace (descent rate ~0.5 to 0.75 meters per second) to a maximum depth of 30 m. Data processing was performed using Sea-Bird Scientific SBE or RBR Ruskin Data Processing Software and the R package "oce".
distribution 
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    "description": "Shallow CTD profiles collected across the Pacific Remote Island Areas (PRIAs; Wake) by the PIFSC Ecosystem Sciences Division during MARAMP 2014 (HA1401). Data include conductivity, temperature, pressure, depth, salinity, and density.",
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    "description": "Shallow CTD profiles collected across the Pacific Remote Island Areas (PRIAs; Howland, Baker, Jarvis, Kingman, Palmyra) by the PIFSC Ecosystem Sciences Division during ASRAMP 2015 (HA1501). Data include conductivity, temperature, pressure, depth, salinity, and density.",
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    "description": "Shallow CTD profiles collected across the Pacific Remote Island Areas (PRIAs; Jarvis) by the PIFSC Ecosystem Sciences Division during the return transit from the 2016 American Samoa reef fish cruise (SE1602). Data include conductivity, temperature, pressure, depth, salinity, and density.",
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identifier https://data.noaa.gov/waf/NOAA/nmfs/pifsc/iso/xml/21444.xml
issued 2016-12-01T00:00:00.000+00:00
keyword 
[
  "DOC/NOAA/NMFS/PIFSC/ESD > Ecosystem Sciences Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce",
  "EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > REEF > CORAL REEF",
  "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY",
  "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY > CONDUCTIVITY PROFILES",
  "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > OCEAN SALINITY",
  "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > BAKER ISLAND",
  "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > HOWLAND ISLAND",
  "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > JARVIS ISLAND",
  "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > JOHNSTON ATOLL",
  "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > KINGMAN REEF",
  "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > PALMYRA ATOLL",
  "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > UNITED STATES MINOR OUTLYING ISLANDS",
  "OCEAN > PACIFIC OCEAN > CENTRAL PACIFIC OCEAN > WAKE ISLAND",
  "CTD > Conductivity, Temperature, Depth",
  "743",
  "National Coral Reef Monitoring Program",
  "Numeric Data Sets > Oceanography",
  "EARTH SCIENCE > Biosphere > Aquatic Habitat > Reef Habitat",
  "EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment",
  "EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > In Situ Physical",
  "EARTH SCIENCE > Oceans > Coastal Processes > Coral Reefs",
  "EARTH SCIENCE > Oceans > Ocean Pressure > Sea Level 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",
  "CONDUCTIVITY",
  "DEPTH - SENSOR",
  "PRESSURE - WATER [HYDROSTATIC PRESSURE]",
  "SALINITY",
  "SIGMA-T",
  "WATER TEMPERATURE",
  "in situ",
  "physical",
  "profile",
  "CORAL REEF STUDIES",
  "Coral Reef Conservation Program",
  "NODC Ocean Acidification Scientific Data Stewardship",
  "National Coral Reef Monitoring Program",
  "US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program",
  "US DOC; NOAA; NMFS; Pacific Islands Fisheries Science Center; Ecosystem Sciences Division",
  "COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Baker Island (00N176W0001)",
  "COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Howland Island (00S176W0001)",
  "COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Jarvis Island (00S160W0001)",
  "COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Johnston Atoll (16N169W0001)",
  "COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Kingman Reef (06N162W0001)",
  "COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Palmyra Atoll (05N162W0001)",
  "COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Wake Atoll (19N167E0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Baker Island > Baker Island (00N176W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Howland Island > Howland Island (00S176W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Johnston Atoll > Johnston Atoll (16N169W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Line Islands > Jarvis Island (00S160W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Line Islands > Kingman Reef (06N162W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Line Islands > Palmyra Atoll (05N162W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Wake Atoll > Wake Atoll (19N167E0001)",
  "Equatorial Pacific Ocean",
  "Pacific Remote Islands Marine National Monument",
  "CTD",
  "HI'IALAKAI",
  "OSCAR ELTON SETTE",
  "SMALL BOAT",
  "CRED",
  "CREP",
  "Climate Change",
  "Coral Reef Ecosystem Division",
  "Coral Reef Ecosystem Program",
  "ESD",
  "Ecosystem Sciences Division",
  "NCRMP",
  "National Coral Reef Monitoring Program",
  "PIFSC",
  "Pacific Islands Fisheries Science Center",
  "RAMP",
  "Reef Assessment and Monitoring Program",
  "PRIA",
  "PRIMNM",
  "Pacific Remote Island Areas",
  "DOC/NOAA/NMFS/PIFSC > Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce",
  "Pacific Remote Island Areas"
]
landingPage https://www.fisheries.noaa.gov/inport/item/21444
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2026-01-01T00:00:00.000+00:00
publisher 
{
  "name": "Pacific Islands Fisheries Science Center",
  "@type": "org:Organization"
}
rights otherRestrictions, unclassified
spatial 166.750803,19.269381,166.474361,19.401854
temporal 2014-03-16T00:00:00+00:00/2014-03-19T00:00:00+00:00
theme 
[
  "geospatial"
]
title National Coral Reef Monitoring Program: Shallow Water Conductivity-Temperature-Depth (CTD) Profiles for select locations across the Pacific Remote Island Areas since 2014

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