Skip to main content
U.S. flag

An official website of the United States government

National Coral Reef Monitoring Program: Shallow Water Conductivity-Temperature-Depth (CTD) Profiles for select locations across American Samoa from 2015 to 2023

Published by Pacific Islands Fisheries Science Center | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 02, 2026 at 11:21 PM | Dataset Last Updated: August 01, 2024 at 12:00 AM
The data described here result from near-shore shallow water Conductivity-Temperature-Depth (CTD) casts conducted at select sites around American Samoa 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 American Samoa in 2015, 2018, and 2023. 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 2015 and 2018, RBR Concerto in 2023) 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".

Resources

5 resources available

Find Related Datasets

Search by Tags

Click any tag below to search for similar datasets

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 > AMERICAN SAMOA CTD > Conductivity, Temperature, Depth 743

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 around American Samoa 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 American Samoa in 2015, 2018, and 2023. 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 2015 and 2018, RBR Concerto in 2023) 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 
[
  {
    "@type": "dcat:Distribution",
    "title": "ESD_NCRMP_CTD_2018_AMSM.csv",
    "accessURL": "https://accession.nodc.noaa.gov/0226206",
    "mediaType": "text/html",
    "description": "Shallow CTD profiles collected across American Samoa (Ofu, Olosega, Ta'u, Tutuila, Rose Atoll, Swains) by the PIFSC Ecosystem Sciences Division during ASRAMP 2018 (HA1801). Data include conductivity, temperature, pressure, depth, salinity, and density.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "ESD_NCRMP_CTD_2015_AMSM.csv",
    "accessURL": "https://accession.nodc.noaa.gov/0161169",
    "mediaType": "text/html",
    "description": "Shallow CTD profiles collected across American Samoa  (Ofu, Olosega, Ta'u, Tutuila, Rose Atoll, Swains) by the PIFSC Ecosystem Sciences Division during ASRAMP 2015 (HA1501). Data include conductivity, temperature, pressure, depth, salinity, and density.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "ESD_NCRMP_CTD_2023_SAMOA_QC.pdf",
    "accessURL": "https://accession.nodc.noaa.gov/0300979",
    "mediaType": "text/html",
    "description": "Quality control report generated for CTD data from deployments from sites across American Samoa (Ofu, Olosega, Tutuila, Ta'u, Rose Atoll) by the PIFSC Ecosystem Sciences Division in 2023 (RA2301).",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "GCMD Keyword Forum Page",
    "accessURL": "https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords",
    "mediaType": "text/html",
    "description": "Global Change Master Directory (GCMD). 2026. GCMD Keywords, Version 24. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Full Metadata Record",
    "accessURL": "https://www.fisheries.noaa.gov/inport/item/36761",
    "mediaType": "text/html",
    "description": "View the complete metadata record on InPort for more information about this dataset.",
    "describedByType": "application/octet-stream"
  }
]
identifier https://data.noaa.gov/waf/NOAA/nmfs/pifsc/iso/xml/36761.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 > AMERICAN SAMOA",
  "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 > American Samoa > American Samoa > American Samoa (14S170W0000)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Ofu Island (14S169W0013)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Olosega Island (14S169W0014)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Rose Island (Rose Atoll) (14S168W0001)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Swains Atoll (11S171W0001)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Ta'u Island (14S169W0012)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > Tutuila Island (14S170W0016)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > Ofu Island > Ofu (14S169W0002)",
  "COUNTRY/TERRITORY > United States of America > American Samoa > Olosega Island > Olosega (14S169W0016)",
  "OCEAN BASIN > Pacific Ocean > American Samoa > American Samoa (14S170W0000)",
  "OCEAN BASIN > Pacific Ocean > American Samoa > Swains Atoll (11S171W0001)",
  "OCEAN BASIN > Pacific Ocean > American Samoa > Tutuila Island (14S170W0016)",
  "OCEAN BASIN > Pacific Ocean > Manu'a Group > Ofu (14S169W0002)",
  "OCEAN BASIN > Pacific Ocean > Manu'a Group > Ofu Island (14S169W0013)",
  "OCEAN BASIN > Pacific Ocean > Manu'a Group > Olosega (14S169W0016)",
  "OCEAN BASIN > Pacific Ocean > Manu'a Group > Olosega Island (14S169W0014)",
  "OCEAN BASIN > Pacific Ocean > Manu'a Group > Ta'u Island (14S169W0012)",
  "OCEAN BASIN > Pacific Ocean > Rose Island > Rose Island (Rose Atoll) (14S168W0001)",
  "Rose Atoll Marine National Monument",
  "South Pacific Ocean",
  "CTD",
  "HI'IALAKAI",
  "RAINIER",
  "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",
  "AMSM",
  "American Samoa",
  "DOC/NOAA/NMFS/PIFSC > Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce",
  "American Samoa"
]
landingPage https://www.fisheries.noaa.gov/inport/item/36761
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2024-08-01T00:00:00.000+00:00
publisher 
{
  "name": "Pacific Islands Fisheries Science Center",
  "@type": "org:Organization"
}
rights otherRestrictions, unclassified
spatial -168.1333,-14.83054,-171.2164,-11.04541
temporal 2015-02-15T00:00:00+00:00/2015-03-28T00:00:00+00:00
theme 
[
  "geospatial"
]
title National Coral Reef Monitoring Program: Shallow Water Conductivity-Temperature-Depth (CTD) Profiles for select locations across American Samoa from 2015 to 2023

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov