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Shallow Water Conductivity-Temperature-Depth (CTD) Profiles of Aua Reef along a water quality gradient in American Samoa from 2022-09-13 to 2022-09-23 (NCEI Accession 0278377)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: December 12, 2025 | Last Modified: 2023-06-02T00:00:00.000+00:00
The data described here is from near-shore shallow water Conductivity-Temperature-Depth (CTD) casts conducted in Aua Reef, American Samoa, by scientists of the Ecosystem Sciences Division (ESD) of the NOAA Pacific Islands Fisheries Science Center (PIFSC). The NOAA Fisheries, Ecosystem Sciences Division established 18 survey sites along the water quality gradient near land-based source pollution. This is part of a larger collection of datasets collected as part of the CRCP-funded project 'Linking watershed management activities to reef health in American Samoa' (project no. 31303). The CTD casts provide vertical profiles (5-m max depth, downcast only) of water column conductivity, temperature, and pressure (Sea-Bird Electronics, SBE19-plus), with calculated depth, salinity, and water density. The CTD cast was conducted by snorkel. The CTD soaked at 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 5 m.

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0278377 CONDUCTIVITY DEPTH - SENSOR HYDROSTATIC PRESSURE SALINITY SIGMA-T WATER DENSITY WATER TEMPERATURE CTD in situ physical profile CHARTERED VESSEL NOAA Pacific Islands Fisheries Science Center NOAA Pacific Islands Fisheries Science Center Coral Reef Conservation Program (CRCP) CORAL REEF STUDIES South Pacific Ocean oceanography 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 31303 Linking watershed management actions to reef health in American Samoa 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 EARTH SCIENCE > OCEANS > COASTAL PROCESSES > CORAL REEFS 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 LBSP land-based source pollution CTD > Conductivity, Temperature, Depth COUNTRY/TERRITORY > United States of America > American Samoa > American Samoa > American Samoa (14S170W0000) COUNTRY/TERRITORY > United States of America > American Samoa > Tutuila Island > Aua (14S170W0010) OCEAN BASIN > Pacific Ocean > American Samoa > American Samoa (14S170W0000) OCEAN BASIN > Pacific Ocean > Pago Pago Harbor > Aua (14S170W0010) OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN 6KBGEG

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