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    • National Coral Reef Monitoring Program: Diel seawater carbonate chemistry observations from a suite of instrumentation deployed at coral reef sites in the Mariana Archipelago in 2017 and 2022

    Metadata Updated: March 22, 2025

    The diel suite is an autonomous instrument package that measures diel variability in coral reef oceanographic conditions and seawater carbonate chemistry. Diel suite surveys are conducted by the NOAA Pacific Islands Fisheries Science Center (PIFSC), Ecosystem Sciences Division (ESD) within coral reef ecosystems across the Pacific Islands Region as part of the NOAA National Coral Reef Monitoring Program (NCRMP). The data provided in this data set are from diel suites deployed at sites in Guam, Aguijan, Maug, and Pagan, Mariana Archipelago in 2017 and 2022.

    Diel suites were deployed on the reef for at least 24 hours to measure in-situ salinity, temperature, pressure, pH, current direction and magnitude, dissolved oxygen, and photosynthetically active radiation (PAR). Seawater samples were also collected for laboratory analyses of dissolved inorganic carbon (DIC) and total alkalinity (TA). Components of the carbonate system--including pH, pCO2 (partial pressure of carbon dioxide), and aragonite saturation state--are calculated from DIC, TA, temperature, salinity and pressure. Each diel suite typically consisted of: 1 SBE-19plus or RBR concerto3 CTD sensor, 1 Nortek Acoustic Doppler Current Profiler (ADCP), 1 Satlantic SeaFET Ocean pH sensor, 1 SBE or RBR dissolved oxygen sensor (2022 only), 1 RBR photosynthetically active radiation sensor (2022 only), 1 tilt current meter (2022 only), and up to 9 Programmable Underwater Collectors (PUCs, 2017) or Sub-surface Automated Samplers (SAS, 2022), each of which collected a water sample at set intervals. Instruments deployed, samples collected, and sample intervals are recorded in the summary file enclosed with the data package, and exceptions to the standard diel suite are also noted.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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    Dates

    Metadata Date March 11, 2025
    Metadata Created Date March 22, 2025
    Metadata Updated Date March 22, 2025
    Reference Date(s) 2019 (creation), 2024 (revision), 2024 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NMFS PIFSC

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date March 11, 2025
    Metadata Created Date March 22, 2025
    Metadata Updated Date March 22, 2025
    Reference Date(s) 2019 (creation), 2024 (revision), 2024 (publication)
    Responsible Party (Point of Contact, Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:54927
    Access Constraints Cite As: Pacific Islands Fisheries Science Center, [Date of Access]: National Coral Reef Monitoring Program: Diel seawater carbonate chemistry observations from a suite of instrumentation deployed at coral reef sites in the Mariana Archipelago in 2017 and 2022 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/54927., Access Constraints: None, Use Constraints: Please cite PIFSC Ecosystem Sciences Division (ESD) when using the data. Suggested citation: Ecosystem Sciences Division; Pacific Islands Fisheries Science Center, 2024: National Coral Reef Monitoring Program: Diel seawater carbonate chemistry observations from a suite of instrumentation deployed at coral reef sites in the Mariana Archipelago in 2017 and 2022, https://www.fisheries.noaa.gov/inport/item/54927, Distribution Liability: While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
    Bbox East Long 145.7547
    Bbox North Lat 20.0229
    Bbox South Lat 13.2412
    Bbox West Long 144.7045
    Coupled Resource
    Frequency Of Update asNeeded
    Harvest Object Id e4d8d078-653f-43cf-9564-84e56f725918
    Harvest Source Id c0beac72-5f43-4455-8c33-1b345fbc2dfe
    Harvest Source Title NMFS PIFSC
    Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
    Lineage The ocean acidification diel suite is a collection of instruments deployed by SCUBA divers onto the seafloor that makes autonomous measurements and collects seawater samples. For a typical deployment, the diel suite consists of: 1 SBE-19plus or RBR concerto3 CTD sensor, 1 Nortek Acoustic Doppler Current Profiler (ADCP), 1 Satlantic SeaFET Ocean pH sensor, 1 dissolved oxygen sensor, 1 photosynthetically active radiation sensor, 1 tilt current meter, and up to 9 Programmable Underwater Collectors (PUCs) or Subsurface Automated Samplers (SAS), each of which collected a water sample at set intervals. All instruments are weighted or zip-tied to rubble on the seafloor, or both, to secure the position of the instrumentation for the duration of the deployment.
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[144.7045, 13.2412], [145.7547, 13.2412], [145.7547, 20.0229], [144.7045, 20.0229], [144.7045, 13.2412]]]}
    Progress onGoing
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2017-05-06
    Temporal Extent End 2017-05-07

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