National Coral Reef Monitoring Program: Shallow Water Conductivity-Temperature-Depth (CTD) Profiles for select locations across the Mariana Archipelago since 2014

Description

Nearshore and offshore Conductivity-Temperature-Depth (CTD) casts were collected at sites in the Hawaiian Archipelago as part of the 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 in the Mariana Archipelago in 2014, 2017, 2022, and 2025. The CTD casts provide vertical profiles (downcast only) of water column conductivity, temperature, and pressure with calculated depth, salinity, and water density.

Nearshore CTD (Sea-Bird Electronics SBE19plus in 2014 and 2017; RBR Concerto 3 in 2022 and 2025 casts were collected from a small boat using a hand line and held just under the surface for 1 minute. 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. Offshore (~10-15km from land) CTD profiles were collected from the ship using a SBE19plus (2014 and 2017), RBR concerto 3 (2022 and 2025). Offshore casts were typically conducted to a maximum depth of ~10m, though deeper profiles (down to ~500m) were collected at some locations and years. 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_2025_MARIAN_QC.pdf Unknown Quality control report generated for CTD data from deployments from sites across the Mariana Archipelago in 2025 by the NOAA Fisheries Ecosystem Sciences Division. Open resource
ESD_NCRMP_CTD_2025_MARIAN.csv Unknown Shallow CTD profiles collected across the Mariana Archipelago by the PIFSC Ecosystem Sciences Division during NCRMP 2025 (SE2503). Data include conductivity, temperature, pressure, depth, salinity, and density. Region name was updated from CNMI to MARIAN for jurisdictional accuracy. Open resource
ESD_NCRMP_CTD_2014_CNMI_QC.pdf Unknown Quality control report generated for CTD data from deployments from sites across the Mariana Archipelago in 2014 by the NOAA Fisheries Ecosystem Sciences Division. Open resource
ESD_NCRMP_CTD_2014_CNMI.csv Unknown Shallow CTD profiles collected across the Mariana Archipelago by the PIFSC Ecosystem Sciences Division during MARAMP 2014 (HA1401). Data include conductivity, temperature, pressure, depth, salinity, and density. Open resource
ESD_NCRMP_CTD_2017_CNMI_QC.pdf Unknown Quality control report generated for CTD data from deployments from sites across the Mariana Archipelago in 2017 by the NOAA Fisheries Ecosystem Sciences Division. Open resource
ESD_NCRMP_CTD_2017_CNMI.csv Unknown Shallow CTD profiles collected across the Mariana Archipelago by the PIFSC Ecosystem Sciences Division during MARAMP 2017 (HA1701). Data include conductivity, temperature, pressure, depth, salinity, and density. Open resource
ESD_NCRMP_CTD_2022_MARIAN.csv Unknown Shallow CTD profiles collected across the Mariana Archipelago by the PIFSC Ecosystem Sciences Division during MARAMP 2022 (RA2201). Data include conductivity, temperature, pressure, depth, salinity, and density. Region name was updated from CNMI to MARIAN for jurisdictional accuracy. Open resource
ESD_NCRMP_CTD_2022_MARIAN_QC.pdf Unknown Quality control report generated for CTD data from deployments from sites across the Mariana Archipelago in 2022 by the NOAA Fisheries Ecosystem Sciences Division. Region was changed to MARIAN from CNMI for jurisdictional accuracy. 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 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
NOAA Data Management Plan (DMP) PDF 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
Ecosystem Sciences Division Unknown PIFSC Ecosystem Sciences Division web page. Open resource

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