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".
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| ESD_NCRMP_CTD_2015_AMSM.csv | Unknown | 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. | Open resource |
| ESD_NCRMP_CTD_2015_AMSM.csv | Unknown | 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. | Open resource |
| ESD_NCRMP_CTD_2015_AMSM_QC.pdf | Unknown | Quality control report generated for CTD data from deployments from sites across American Samoa (Ofu, Olosega, Ta'u, Tutuila, Rose Atoll, Swains) by the PIFSC Ecosystem Sciences Division during ASRAMP 2015 (HA1501). | Open resource |
| ESD_NCRMP_CTD_2015_AMSM_QC.pdf | Unknown | Quality control report generated for CTD data from deployments from sites across American Samoa (Ofu, Olosega, Ta'u, Tutuila, Rose Atoll, Swains) by the PIFSC Ecosystem Sciences Division during ASRAMP 2015 (HA1501). | Open resource |
| ESD_NCRMP_CTD_2015_AMSM.csv | Unknown | 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. | Open resource |
| ESD_NCRMP_CTD_2015_AMSM_QC.pdf | Unknown | Quality control report generated for CTD data from deployments from sites across American Samoa (Ofu, Olosega, Ta'u, Tutuila, Rose Atoll, Swains) by the PIFSC Ecosystem Sciences Division during ASRAMP 2015 (HA1501). | Open resource |
| ESD_NCRMP_CTD_2018_AMSM.csv | Unknown | 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. | Open resource |
| ESD_NCRMP_CTD_2018_AMSM_QC.pdf | Unknown | Quality control report generated for CTD data from deployments from sites across American Samoa (Ofu, Olosega, Tutuila, Ta'u, Rose Atoll, Swains) by the PIFSC Ecosystem Sciences Division during ASRAMP 2018 (HA1801). | Open resource |
| ESD_NCRMP_CTD_2018_AMSM.csv | Unknown | 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. | Open resource |
| ESD_NCRMP_CTD_2018_AMSM_QC.pdf | Unknown | Quality control report generated for CTD data from deployments from sites across American Samoa (Ofu, Olosega, Tutuila, Ta'u, Rose Atoll, Swains) by the PIFSC Ecosystem Sciences Division during ASRAMP 2018 (HA1801). | Open resource |
| ESD_NCRMP_CTD_2018_AMSM.csv | Unknown | 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. | Open resource |
| ESD_NCRMP_CTD_2018_AMSM_QC.pdf | Unknown | Quality control report generated for CTD data from deployments from sites across American Samoa (Ofu, Olosega, Tutuila, Ta'u, Rose Atoll, Swains) by the PIFSC Ecosystem Sciences Division during ASRAMP 2018 (HA1801). | Open resource |
| ESD_NCRMP_CTD_2023_SAMOA_QC.pdf | Unknown | 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). | Open resource |
| ESD_NCRMP_CTD_2023_SAMOA.csv | Unknown | Shallow CTD profiles collected across American Samoa (Ofu, Olosega, Ta'u, Tutuila, Rose Atoll ) by the PIFSC Ecosystem Sciences Division in 2023 (RA2301). Data include conductivity, temperature, pressure, depth, salinity, and density. | Open resource |
| ESD_NCRMP_CTD_2023_SAMOA_QC.pdf | Unknown | 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). | Open resource |
| ESD_NCRMP_CTD_2023_SAMOA_QC.pdf | Unknown | 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). | Open resource |
| ESD_NCRMP_CTD_2023_SAMOA.csv | Unknown | Shallow CTD profiles collected across American Samoa (Ofu, Olosega, Ta'u, Tutuila, Rose Atoll ) by the PIFSC Ecosystem Sciences Division in 2023 (RA2301). Data include conductivity, temperature, pressure, depth, salinity, and density. | Open resource |
| ESD_NCRMP_CTD_2023_SAMOA.csv | Unknown | Shallow CTD profiles collected across American Samoa (Ofu, Olosega, Ta'u, Tutuila, Rose Atoll ) by the PIFSC Ecosystem Sciences Division in 2023 (RA2301). Data include conductivity, temperature, pressure, depth, salinity, and density. | Open resource |
| GCMD Keyword Forum Page | Unknown | Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. 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 | Open resource |
| GCMD Keyword Forum Page | Unknown | Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. 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 | Open resource |
| GCMD Keyword Forum Page | Unknown | Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. 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 | Open resource |
| NOAA Ocean Acidification Program (OAP) | Unknown | Information about the NOAA Ocean Acidification Program (OAP). | Open resource |
| NOAA Ocean Acidification Program (OAP) | Unknown | Information about the NOAA Ocean Acidification Program (OAP). | Open resource |
| NOAA Ocean Acidification Program (OAP) | Unknown | Information about the NOAA Ocean Acidification Program (OAP). | Open resource |
| National Coral Reef Monitoring Program | Unknown | Information about the NOAA National Coral Reef Monitoring Program (NCRMP) on the NOAA Coral Reef Information System website. | Open resource |
| National Coral Reef Monitoring Program | Unknown | Information about the NOAA National Coral Reef Monitoring Program (NCRMP) on the NOAA Coral Reef Information System website. | Open resource |
| National Coral Reef Monitoring Program | Unknown | Information about the NOAA National Coral Reef Monitoring Program (NCRMP) on the NOAA Coral Reef Information System website. | Open resource |
| Full Metadata Record | Unknown | View the complete metadata record on InPort for more information about this dataset. | Open resource |
| Full Metadata Record | Unknown | View the complete metadata record on InPort for more information about this dataset. | Open resource |
| Full Metadata Record | Unknown | View the complete metadata record on InPort for more information about this dataset. | Open resource |
| NOAA Data Management Plan (DMP) | NOAA Data Management Plan for this record on InPort. | Open resource | |
| NOAA Data Management Plan (DMP) | NOAA Data Management Plan for this record on InPort. | Open resource | |
| NOAA Data Management Plan (DMP) | NOAA Data Management Plan for this record on InPort. | Open resource | |
| Pacific Islands Fisheries Science Center Website | Unknown | Pacific Island Fisheries Science Center homepage | Open resource |
| Pacific Islands Fisheries Science Center Website | Unknown | Pacific Island Fisheries Science Center homepage | Open resource |
| Pacific Islands Fisheries Science Center Website | Unknown | Pacific Island Fisheries Science Center homepage | Open resource |
| Ecosystem Sciences Division | Unknown | PIFSC Ecosystem Sciences Division web page | Open resource |
| Ecosystem Sciences Division | Unknown | PIFSC Ecosystem Sciences Division web page | Open resource |
| Ecosystem Sciences Division | Unknown | PIFSC Ecosystem Sciences Division web page | Open resource |
Tags
- 743
- american samoa
- american samoa (14s170w0000)
- amsm
- aquatic habitat
- biosphere
- central pacific ocean
- climate change
- coastal processes
- conductivity
- conductivity profiles
- coral reef
- coral reef conservation program
- coral reef ecosystem division
- coral reef ecosystem program
- coral reefs
- coral reef studies
- corals
- country/territory
- cred
- crep
- ctd
- density
- depth
- depth - sensor
- doc/noaa/nmfs/pifsc
- doc/noaa/nmfs/pifsc/esd
- earth science
- ecosystems
- ecosystem sciences division
- esd
- hi'ialakai
- in situ
- in situ physical
- manu'a group
- marine ecosystems
- national coral reef monitoring program
- national marine fisheries service
- ncrmp
- nmfs
- noaa
- nodc ocean acidification scientific data stewardship
- numeric data sets
- ocean
- ocean acidification program
- ocean basin
- oceanography
- ocean pressure
- oceans
- ocean salinity
- ocean temperature
- office of oceanic and atmospheric research
- ofu (14s169w0002)
- ofu island
- ofu island (14s169w0013)
- olosega (14s169w0016)
- olosega island
- olosega island (14s169w0014)
- pacific islands fisheries science center
- pacific ocean
- physical
- pifsc
- pressure - water [hydrostatic pressure]
- profile
- rainier
- ramp
- reef
- reef assessment and monitoring program
- reef habitat
- reef monitoring and assessment
- rose atoll marine national monument
- rose island
- rose island (rose atoll) (14s168w0001)
- salinity
- salinity/density
- sea level pressure
- sigma-t
- small boat
- south pacific ocean
- swains atoll (11s171w0001)
- ta'u island (14s169w0012)
- temperature
- tutuila island (14s170w0016)
- united states of america
- u.s. department of commerce
- us doc
- water temperature
- zoology