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National Coral Reef Monitoring Program: Shallow water conductivity-temperature-depth (CTD) profiles for selected locations across the Pacific Remote Island Areas

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 28, 2026 at 12:03 AM | Dataset Last Updated: April 16, 2026 at 12:00 AM
Near-shore shallow water Conductivity-Temperature-Depth (CTD) surveys provided in this collection were conducted at selected sites around the Pacific Remote Island Areas as part of the ongoing National Coral Reef Monitoring Program (NCRMP). Shallow water CTD surveys provide vertical profiles of temperature, salinity, and turbidity providing indications for water masses and local sea water chemistry changes. These surveys are conducted to characterize the spatial structure of the physical and chemical properties of the ocean environment influencing the living coral reef resources observed during Rapid Ecological Assessments (REA) and towed-diver surveys, both of which are archived separately. Shallow CTD casts are vertical profiles (max 30 meter depth, downcast only) of water column conductivity, temperature, and pressure (Sea-Bird Electronics, SBE19-plus; accuracy of 0.005 S m-1 in conductivity, 0.0002C in temperature, and 0.1% in pressure). A transmissometer (Wetlabs Inc; provides profiles of beam transmittance, related to turbidity) and a dissolved oxygen sensor (Sea-Bird Electronics, SBE43; accuracy of 2% of saturation) are also attached. Data are collected by lowering the CTD in a profiling mode from a small boat at a descent rate of approximately 0.5 to 0.75m s-1 to a maximum depth of 30m. Data processing is performed using Seabird Instrument's SeaSoft SBE Data Processing Software.

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  • Coral reef ecosystem integrated observing system: In-situ oceanographic observations at the US Pacific islands and atolls

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0162245 0162247 0162248 0226041 0227441 0300660 0314161 CONDUCTIVITY

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describedByType application/octet-steam
description Near-shore shallow water Conductivity-Temperature-Depth (CTD) surveys provided in this collection were conducted at selected sites around the Pacific Remote Island Areas as part of the ongoing National Coral Reef Monitoring Program (NCRMP). Shallow water CTD surveys provide vertical profiles of temperature, salinity, and turbidity providing indications for water masses and local sea water chemistry changes. These surveys are conducted to characterize the spatial structure of the physical and chemical properties of the ocean environment influencing the living coral reef resources observed during Rapid Ecological Assessments (REA) and towed-diver surveys, both of which are archived separately. Shallow CTD casts are vertical profiles (max 30 meter depth, downcast only) of water column conductivity, temperature, and pressure (Sea-Bird Electronics, SBE19-plus; accuracy of 0.005 S m-1 in conductivity, 0.0002C in temperature, and 0.1% in pressure). A transmissometer (Wetlabs Inc; provides profiles of beam transmittance, related to turbidity) and a dissolved oxygen sensor (Sea-Bird Electronics, SBE43; accuracy of 2% of saturation) are also attached. Data are collected by lowering the CTD in a profiling mode from a small boat at a descent rate of approximately 0.5 to 0.75m s-1 to a maximum depth of 30m. Data processing is performed using Seabird Instrument's SeaSoft SBE Data Processing Software.
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identifier https://data.noaa.gov/waf/NOAA/NESDIS/ncei/accessions/iso/xml/NCRMP-CTD-PRIA.xml
issued 2017-03-30T00:00:00.000+00:00
keyword 
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  "0162245",
  "0162247",
  "0162248",
  "0226041",
  "0227441",
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  "SALINITY",
  "SIGMA-T",
  "WATER DENSITY",
  "WATER TEMPERATURE",
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  "NOAA Ship Hi'ialakai",
  "NOAA Ship Oscar Elton Sette",
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  "Coral Reef Ecosystem Program",
  "NOAA Pacific Islands Fisheries Science Center",
  "Coral Reef Conservation Program (CRCP)",
  "CORAL REEF STUDIES",
  "National Coral Reef Monitoring Program (NCRMP)",
  "Pacific Reef and Assessment Monitoring Program (Pacific RAMP)",
  "North Pacific Ocean",
  "South Pacific Ocean",
  "oceanography",
  "CRED",
  "CREP",
  "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 Monitoring Program",
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  "CRED",
  "CREP",
  "Coral Reef Ecosystem Division",
  "Coral Reef Ecosystem Program",
  "ESD",
  "Ecosystem Sciences Division",
  "PIFSC",
  "Pacific Islands Fisheries Science Center",
  "DOC/NOAA/NMFS > National Marine Fisheries Service, NOAA, U.S. Department of Commerce",
  "DOC/NOAA/NMFS/PIFSC/ESD > Ecosystem Sciences Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce",
  "743",
  "National Coral Reef Monitoring Program",
  "National Coral Reef Monitoring Program (NCRMP)",
  "NCRMP",
  "RAMP",
  "Reef Assessment and 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 Pressure > Water Pressure",
  "EARTH SCIENCE > Oceans > Ocean Temperature > Thermocline > Profile",
  "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",
  "Monitoring",
  "EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH",
  "EARTH SCIENCE > OCEANS > COASTAL PROCESSES > CORAL REEFS",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN",
  "EARTH SCIENCE > OCEANS > OCEAN OPTICS > FLUORESCENCE",
  "EARTH SCIENCE > OCEANS > OCEAN OPTICS > TURBIDITY",
  "EARTH SCIENCE > OCEANS > OCEAN PRESSURE > SEA LEVEL PRESSURE",
  "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",
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  "CREP",
  "Climate Change",
  "Coral Reef Ecosystem Division",
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  "PIFSC",
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  "Ships",
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  "OSCAR ELTON SETTE (call sign: WTEE, ICES code: 33OC, 2003-)",
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  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Line Islands > Palmyra Atoll (05N162W0001)",
  "OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Wake Atoll > Wake Atoll (19N167E0001)",
  "OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN",
  "OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN",
  "PRIA",
  "PRIMNM",
  "Pacific Remote Island Areas",
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]
landingPage https://www.ncei.noaa.gov/contact
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2026-04-16T00:00:00.000+00:00
publisher 
{
  "name": "NOAA National Centers for Environmental Information",
  "@type": "org:Organization"
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references 
[
  "https://www.ncei.noaa.gov/archive/accession/0157633",
  "https://www.fisheries.noaa.gov/inport/item/21444",
  "https://www.pifsc.noaa.gov/library/pubs/Hoeke_etal_JOO_2009.pdf"
]
rights otherRestrictions
spatial -159.964,-0.391541,166.589,19.3255
temporal 2014-03-16T00:00:00+00:00/2014-03-16T00:00:00+00:00
theme 
[
  "geospatial"
]
title National Coral Reef Monitoring Program: Shallow water conductivity-temperature-depth (CTD) profiles for selected locations across the Pacific Remote Island Areas

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