gov.noaa.nodc:0278377 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2026-04-30T14:42:11Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) 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) 2023-06-02 publication 2023-05-17 creation NOAA National Centers for Environmental Information gov.noaa.nodc:0278377 NCEI Archive Management System 0278377 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher Lori Luers NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division nmfs.pic.credinfo@noaa.gov https://www.pifsc.noaa.gov/ecosystem_sciences/ HTTPS NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division website Institution web page information resourceProvider NOAA Pacific Islands Fisheries Science Center (NMFS/PIFSC) resourceProvider Joy Smith NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division joy.smith@noaa.gov https://www.pifsc.noaa.gov/ecosystem_sciences/ HTTPS NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division website Institution web page information principalInvestigator Lori Luers NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division lori.luers@noaa.gov https://www.pifsc.noaa.gov/ecosystem_sciences/ HTTPS NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division website Institution web page information pointOfContact Ecosystem Sciences Division, NOAA Pacific Islands Fisheries Science Center https://www.pifsc.noaa.gov/ecosystem_sciences/ HTTPS NOAA Pacific Islands Fisheries Science Center, Ecosystem Sciences Division website Institution web page information author NOAA Pacific Islands Fisheries Science Center (NMFS/PIFSC) contributor tableDigital 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. The focal point of this project was to establish a comprehensive biological, water quality, and carbonate chemistry baseline for Aua reef. This work aims at identifying measurable spatial differences in the structure and composition of the benthic and coral community at Aua that can be explained by measurable spatial patterns of water quality (nutrients and sediments) and water carbonate chemistry (pH and Alkalinity). This work is of fundamental importance for the development of the Aua Watershed Management Plan, and will enable Federal and jurisdictional resource managers to more effectively assess the effectiveness of watershed management actions reducing land-based pollution and impacts to the adjacent coral reef ecosystems. Funding Agency: NOAA Coral Reef Conservation Program completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0278377 Preview graphic PNG 0278377 NCEI ACCESSION NUMBER 2023-05-13 publication CONDUCTIVITY DEPTH - SENSOR HYDROSTATIC PRESSURE SALINITY SIGMA-T WATER DENSITY WATER TEMPERATURE theme NODC DATA TYPES THESAURUS CTD instrument NODC INSTRUMENT TYPES THESAURUS in situ physical profile theme NODC OBSERVATION TYPES THESAURUS CHARTERED VESSEL platform NODC PLATFORM NAMES THESAURUS NOAA Pacific Islands Fisheries Science Center dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS NOAA Pacific Islands Fisheries Science Center dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Coral Reef Conservation Program (CRCP) CORAL REEF STUDIES project NODC PROJECT NAMES THESAURUS South Pacific Ocean place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication CRED CREP Coral Reef Ecosystem Division Coral Reef Ecosystem Program ESD Ecosystem Sciences Division PIFSC Pacific Islands Fisheries Science Center dataCentre Contributing Organizations DOC/NOAA/NMFS > National Marine Fisheries Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. 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 information custodian 31303 Linking watershed management actions to reef health in American Samoa project CRCP Project Numeric Data Sets > Oceanography theme CoRIS Discovery Thesaurus 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 theme CoRIS Theme Thesaurus 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 theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. 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 information custodian LBSP land-based source pollution theme Provider Keywords CTD > Conductivity, Temperature, Depth instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. 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 information custodian 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) place CoRIS Place Thesaurus OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN place Global Change Master Directory (GCMD) Location Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. 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 information custodian 6KBGEG Send2NCEI Submission Package ID accessLevel: public otherRestrictions Cite as: Ecosystem Sciences Division, NOAA Pacific Islands Fisheries Science Center (2023). 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). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0278377. Accessed [date]. Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. Shallow Water Conductivity-Temperature-Depth (CTD) Profiles along a water quality gradient in Aua, American Samoa from 2022-09-13 to 2022-09-23 2023 publication https://www.fisheries.noaa.gov/inport/item/68094 HTTPS https://www.fisheries.noaa.gov/inport/item/68094 InPort Metadata Record information crossReference Hoeke, R., Gove, J., Smith, E., Fisher-Pool, P., Lammers, M., Merritt, D., Vetter, O., Young, C., Wong, K., & Brainard, R. (2009). Coral reef ecosystem integrated observing system: In-situ oceanographic observations at the US Pacific islands and atolls. Journal of Operational Oceanography, 2(2), 3–14. https://doi.org/10.1080/1755876x.2009.12027737 2009-08 publication International DOI Foundation (IDF) https://doi.org/10.1080/1755876x.2009.12027737 https://doi.org/10.1080/1755876x.2009.12027737 HTTPS https://doi.org/10.1080/1755876x.2009.12027737 Journal article information Hoeke, RK Joint Institute for Marine and Atmospheric Research, University of Hawaii at Manoa and Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration (NOAA), Hawaii, USA author Gove, JM Joint Institute for Marine and Atmospheric Research, University of Hawaii at Manoa and Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration (NOAA), Hawaii, USA author Smith, E Joint Institute for Marine and Atmospheric Research, University of Hawaii at Manoa and Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration (NOAA), Hawaii, USA author Fisher-Pool, P Joint Institute for Marine and Atmospheric Research, University of Hawaii at Manoa and Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration (NOAA), Hawaii, USA author Lammers, M Joint Institute for Marine and Atmospheric Research, University of Hawaii at Manoa and Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration (NOAA), Hawaii, USA author Merritt, D Joint Institute for Marine and Atmospheric Research, University of Hawaii at Manoa and Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration (NOAA), Hawaii, USA author Vetter, OJ Joint Institute for Marine and Atmospheric Research, University of Hawaii at Manoa and Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration (NOAA), Hawaii, USA author Young, CW Joint Institute for Marine and Atmospheric Research, University of Hawaii at Manoa and Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration (NOAA), Hawaii, USA author Wong, KB Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA author Brainard, RE Coral Reef Ecosystem Division, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, NOAA author Informa UK Limited publisher documentDigital Journal of Operational Oceanography 2(2) ISSN 1755-876X, ISSN 1755-8778, pp. 3-14 crossReference sciencePaper eng; USA utf8 environment oceans -170.669 -170.665 -14.2881 -14.2717 2022-09-13 2022-09-23 NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. CSV 0.668 https://www.ncei.noaa.gov/archive/accession/0278377 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/278377 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/278377 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0213/0278377/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0278377 v1.1 was published. 2023-06-02T14:32:36Z NCEI Accession 0278377 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0278377/1.1 HTTPS NCEI Accession 0278377 v1.1 published 2023-06-02T14:32:36Z download dataset Parameter or Variable: CONDUCTIVITY (measured); Units: siemens; Observation Category: in situ; Sampling Instrument: CTD; Sampling and Analyzing Method: Following a 1 minute soak, the CTD was lowered in profiling mode at an even pace (descent rate ~0.5 to 0.75 meters per second) to a depth of 0-5 m at 18 sites along the water quality gradient in Aua, American Samoa established by the NOAA Fisheries, Ecosystem Sciences Division.; Data Quality Method: RBR Concerto3 CTD sensor: Conductivity - measurement range: 0-85 mS/cm; accuracy: +/- 0.003 mS/cm; stability: 0.010 mS/cm per year; resolution: 0.001 mS/cm; Parameter or Variable: DEPTH - SENSOR (calculated); Units: meter; Observation Category: in situ; Sampling Instrument: CTD; Sampling and Analyzing Method: Following a 1 minute soak, the CTD was lowered in profiling mode at an even pace (descent rate ~0.5 to 0.75 meters per second) to a depth of 0-5 m at 18 sites along the water quality gradient in Aua, American Samoa established by the NOAA Fisheries, Ecosystem Sciences Division. Parameter or Variable: HYDROSTATIC PRESSURE (measured); Units: decibar; Observation Category: in situ; Sampling Instrument: CTD; Sampling and Analyzing Method: Following a 1 minute soak, the CTD was lowered in profiling mode at an even pace (descent rate ~0.5 to 0.75 meters per second) to a depth of 0-5 m at 18 sites along the water quality gradient in Aua, American Samoa established by the NOAA Fisheries, Ecosystem Sciences Division.; Data Quality Method: RBR Concerto3 CTD sensor: Pressure - measurement range: 0-600 m; accuracy: +/- 0.05%; stability: +/- 0.05% per year; resolution: 0.001% Parameter or Variable: SALINITY (calculated); Units: practical salinity unit; Observation Category: in situ; Sampling Instrument: CTD; Sampling and Analyzing Method: Following a 1 minute soak, the CTD was lowered in profiling mode at an even pace (descent rate ~0.5 to 0.75 meters per second) to a depth of 0-5 m at 18 sites along the water quality gradient in Aua, American Samoa established by the NOAA Fisheries, Ecosystem Sciences Division. Parameter or Variable: WATER DENSITY (calculated); Units: kg/m^3; Observation Category: in situ; Sampling Instrument: CTD; Sampling and Analyzing Method: Following a 1 minute soak, the CTD was lowered in profiling mode at an even pace (descent rate ~0.5 to 0.75 meters per second) to a depth of 0-5 m at 18 sites along the water quality gradient in Aua, American Samoa established by the NOAA Fisheries, Ecosystem Sciences Division. Parameter or Variable: WATER TEMPERATURE (measured); Units: degrees Celsius; Observation Category: in situ; Sampling Instrument: CTD; Sampling and Analyzing Method: Following a 1 minute soak, the CTD was lowered in profiling mode at an even pace (descent rate ~0.5 to 0.75 meters per second) to a depth of 0-5 m at 18 sites along the water quality gradient in Aua, American Samoa established by the NOAA Fisheries, Ecosystem Sciences Division.; Data Quality Method: RBR Concerto3 CTD sensor: Temperature - measurement range: -5-35 deg C; accuracy: +/-0.002 deg C; stability: 0.002 deg C per year; resolution: 0.00005 deg C; asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian CTD CTD Conductivity-Temperature-Depth probe CHARTERED VESSEL CHARTERED VESSEL