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
0 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. https://accession.nodc.noaa.gov/0226662
0 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. https://accession.nodc.noaa.gov/0161168
0 Quality control report generated for CTD data from deployments from sites across the Mariana Archipelago in 2017 by the NOAA Fisheries Ecosystem Sciences Division. https://accession.nodc.noaa.gov/0226662
0 Quality control report generated for CTD data from deployments from sites across the Mariana Archipelago in 2014 by the NOAA Fisheries Ecosystem Sciences Division. https://accession.nodc.noaa.gov/0161168
0 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. https://accession.nodc.noaa.gov/0283295
0 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. https://accession.nodc.noaa.gov/0283295
0 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. https://accession.nodc.noaa.gov/#
0 Quality control report generated for CTD data from deployments from sites across the Mariana Archipelago in 2025 by the NOAA Fisheries Ecosystem Sciences Division. https://accession.nodc.noaa.gov/#
0 View the complete metadata record on InPort for more information about this dataset. https://www.fisheries.noaa.gov/inport/item/36820
0 Pacific Island Fisheries Science Center homepage https://www.pifsc.noaa.gov
0 Information about the NOAA National Coral Reef Monitoring Program (NCRMP) on the NOAA Coral Reef Information System website. https://www.coris.noaa.gov/monitoring/
0 Information about the NOAA Ocean Acidification Program (OAP). https://oceanacidification.noaa.gov/
0 PIFSC Ecosystem Sciences Division web page. https://www.pifsc.noaa.gov/ecosystem_sciences/
0 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 https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
33 NOAA Data Management Plan for this record on InPort. https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/pifsc/dmp/pdf/36820.pdf

Tags

  • guguan island
  • agrihan island (18n145e0002)
  • farallon de pajaros (20n144e0001)
  • crep
  • salinity
  • doc/noaa/nmfs/pifsc
  • ocean pressure
  • united states of america
  • western pacific ocean
  • pressure - water [hydrostatic pressure]
  • alamagan island (17n145e0002)
  • reef monitoring and assessment
  • maug
  • asuncion island (19n145e0001)
  • aquatic habitat
  • coral reef
  • corals
  • guguan island (17n145e0001)
  • coral reef ecosystem division
  • ecosystems
  • northern mariana islands
  • pifsc
  • biosphere
  • national coral reef monitoring program
  • maug island
  • rota island
  • conductivity
  • oceans
  • water temperature
  • physical
  • coral reef conservation program
  • oscar elton sette
  • rota island ( luta ) (14n145e0007)
  • maug island (20n145e0001)
  • sigma-t
  • northern mariana islands ( cnmi ) (18n146e0000)
  • sea level pressure
  • cnmi
  • aguihan island reefs
  • noaa
  • guam
  • aguihan
  • pagan island (18n145e0001)
  • numeric data sets
  • marianas
  • nmfs
  • ocean temperature
  • profile
  • marine ecosystems
  • farallon de pajaros
  • oceanography
  • doc/noaa/nmfs/pifsc/esd
  • guam (13n144e0000)
  • us doc
  • ocean acidification program
  • density
  • tinian island reefs
  • rainier
  • in situ
  • pacific islands fisheries science center
  • u.s. department of commerce
  • earth science
  • ncrmp
  • national marine fisheries service
  • ocean salinity
  • ocean
  • small boat
  • ramp
  • climate change
  • mariana archipelago
  • marianas archipelago
  • cred
  • guguan
  • saipan island
  • rota
  • saipan
  • marianas trench marine national monument
  • pagan
  • aguihan island (aguijan) (14n145e0006)
  • agrihan island
  • 743
  • commonwealth of the northern mariana islands
  • mariana islands
  • pagan island
  • reef habitat
  • asuncion island
  • reef assessment and monitoring program
  • nw pacific
  • micronesia
  • ocean basin
  • in situ physical
  • ecosystem sciences division
  • temperature
  • esd
  • coastal processes
  • hi'ialakai
  • conductivity profiles
  • salinity/density
  • saipan island (15n145e0002)
  • reef
  • office of oceanic and atmospheric research
  • zoology
  • coral reefs
  • sarigan island (16n145e0003)
  • nodc ocean acidification scientific data stewardship
  • ctd
  • pacific ocean
  • country/territory
  • depth
  • tinian
  • alamagan island
  • sarigan island
  • tinian island (14n145e0005)
  • coral reef studies
  • coral reef ecosystem program
  • depth - sensor

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