gov.noaa.nodc:0226799 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 2026-04-30T20:23:37Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) CTD, Short-lived radioisotope, sediment sample location data, and other sediment data types collected aboard R/V Weatherbird cruise WB-0816 in the Gulf of Mexico from 2016-08-05 to 2016-09-09 (NCEI Accession 0226799) 2021-04-14 publication 2021-03-16 creation NOAA National Centers for Environmental Information gov.noaa.nodc:0226799 NCEI Archive Management System 0226799 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 Bipana Sigdel Harte Research Institute for Gulf of Mexico Studies (HRI) bipana.sigdel@tamucc.edu https://www.harteresearch.org/ HTTPS Harte Research Institute for Gulf of Mexico Studies (HRI) website Institution web page information resourceProvider GRIIDC https://www.griidc.org/ HTTPS GRIIDC website Institution web page information resourceProvider Steven Murawski University of South Florida (USF) smurawski@usf.edu https://www.usf.edu/ HTTPS University of South Florida (USF) website Institution web page information principalInvestigator Gregg Brooks Eckerd College brooksgr@eckerd.edu https://www.eckerd.edu/ HTTPS Eckerd College website Institution web page information pointOfContact Rebekka Larson Eckerd College larsonra@eckerd.edu https://www.eckerd.edu/ HTTPS Eckerd College website Institution web page information pointOfContact Brooks, Gregg R. Eckerd College / Marine Science https://www.eckerd.edu/ HTTPS Eckerd College website Institution web page information author Larson, Rebekka Eckerd College / Marine Science https://www.eckerd.edu/ HTTPS Eckerd College website Institution web page information author Murawski, Steven A. University of South Florida / College of Marine Science https://www.usf.edu/ HTTPS University of South Florida (USF) website Institution web page information author tableDigital This dataset contains CTD, short-lived radioisotope (SLRad), sediment sample location data, and other sediment data types obtained from sediment cores collected aboard R/V Weatherbird cruise WB-0816 in the Gulf of Mexico from 2016-08-05 to 2016-09-09. Other sediment data types included are bulk density/porewater, sediment core photographs, and sediment texture and composition data. The CTD profiles were done at 22 locations using Sea-Bird SBE25 and Sea-Bird SBE43 from 2016-08-07 to 2016-09-09. Also included within the CTD data are the locations and grab and multicore sediment samples and their allotments between investigators. Bulk density/porewater data reports measurements of sediment sample wet weight (g) and dry weight (g) for core sub-samples at 2mm sampling intervals for “surficial unit” and 5mm sampling resolution intervals to the base of cores. SLRad data and sediment texture and composition data were generated for selected core sub-samples. For sediment-core photograph data, sediment cores were longitudinally split and photographed with a Nikon D5100 digital camera with a scale in metric units (cm and mm) for a visual representation of sediment stratigraphy, color, and visual properties. The purpose of the cruise was to identify if/how sediment texture and composition varies in sediment cores as an indicator of sediment sources and depositional mechanisms, the visual representation of sediment stratigraphy, color and visual properties, and to characterize the distribution and fate of oiled sediment at sites on the continental shelf and slope of the Gulf of Mexico. Funding Agency: Gulf of Mexico Research Initiative (GoMRI) Funding Agency: Gulf of Mexico Research Initiative Information & Data Cooperative 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:0226799 Preview graphic PNG 0226799 NCEI ACCESSION NUMBER 2021-03-11 publication ALTIMETRY - SEA SURFACE HEIGHT CARBON - CARBONATE CHEMISTRY - SEDIMENT CONDUCTIVITY CORE - BULK DENSITY FLUORESCENCE irradiance LATITUDE LONGITUDE OXYGEN PHOTOSYNTHETIC ACTIVE RADIATION (PAR) SALINITY SEDIMENT - GRAIN SIZE SEDIMENT - POREWATER CHEMISTRY SEDIMENTS SOUND VELOCITY turbidity WATER DENSITY water depth WATER TEMPERATURE theme NODC DATA TYPES THESAURUS corer CTD fluorometer sediment sampler - corer sediment sampler - grab turbidity sensor instrument NODC INSTRUMENT TYPES THESAURUS geological in situ laboratory analyses profile sediment analysis visual observation theme NODC OBSERVATION TYPES THESAURUS GRIIDC dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Deepwater Horizon oil spill event (DWH) Gulf of Mexico Research Initiative (GoMRI) Gulf of Mexico Research Initiative Information & Data Cooperative (GRIIDC) project NODC PROJECT NAMES THESAURUS Coastal Waters of Gulf of Mexico Coastal Waters of Louisiana Coastal Waters of Texas Gulf of Mexico North Atlantic Ocean place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication WB-0816</cruise-station-date-cast> project Cruise ID Center for the Integrated Modeling and Analysis of Gulf Ecosystems II (C-IMAGE II) Deepwater Horizon Oil Spill Event (DWH) project Provider Project Names EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH EARTH SCIENCE > OCEANS > MARINE SEDIMENTS EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > SEDIMENT CHEMISTRY EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > SEDIMENT COMPOSITION EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > SEDIMENTARY TEXTURES EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > ACOUSTIC VELOCITY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBONATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > MARINE GEOCHEMISTRY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN EARTH SCIENCE > OCEANS > OCEAN OPTICS > FLUORESCENCE EARTH SCIENCE > OCEANS > OCEAN OPTICS > IRRADIANCE EARTH SCIENCE > OCEANS > OCEAN OPTICS > PHOTOSYNTHETICALLY ACTIVE RADIATION EARTH SCIENCE > OCEANS > OCEAN OPTICS > TURBIDITY 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 EARTH SCIENCE > OCEANS > SEA SURFACE TOPOGRAPHY > SEA SURFACE HEIGHT EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > ISOTOPES > RADIOISOTOPES theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 23 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 CTD profile Dry sediment bulk density Grab sediment samples Loss on ignition (LOI) Multicore sediment samples Percent porewater Photosynthetically active radiation (PAR) Sediment core photographs Sediment cores Sediment stratigraphy Short-lived radioisotopes Surface sediment samples Total organic matter (TOM) Water column conductivity Water column density Water column depth Water column fluorescence Water column oxygen Water column salinity Water column temperature average sound velocity oxygen saturation sediment sample length theme Provider Keywords CTD > Conductivity, Temperature, Depth FLUOROMETERS > FLUOROMETERS GRAB SAMPLERS HPGE > Hyperpure Germanium SEDIMENT CORERS > SEDIMENT CORERS TURBIDITY METERS > TURBIDITY METERS instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 23 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 Biospherical/Licor Photosynthetically Active Radiation (PAR)/irradiance sensor Multiple Corer Nikon D5100 Ocean Instrument MC-800 Multicore Sea-Bird SBE 25 Sea-Bird SBE 43 Series HPGe (High-Purity Germanium) Coaxial Planar Photon Detectors Shipek Grab Sampler WET Labs Environmental Characterization Optics (ECO) fluorometer WET Labs Environmental Characterization Optics (ECO) turbidity meter WET Labs colored dissolved organic matter (CDOM) fluorometer instrument Provider Instruments RV Weatherbird Weatherbird platform Provider Platform Keywords OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO place Global Change Master Directory (GCMD) Location Keywords 2026 revision 23 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 Bay of Campeche coastal waters of Mexico place Provider Place Names FGJ14N Send2NCEI Submission Package ID accessLevel: public otherRestrictions Cite as: Brooks, Gregg R.; Larson, Rebekka; Murawski, Steven A. (2021). CTD, Short-lived radioisotope, sediment sample location data, and other sediment data types collected aboard R/V Weatherbird cruise WB-0816 in the Gulf of Mexico from 2016-08-05 to 2016-09-09 (NCEI Accession 0226799). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0226799. 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. Schwing, Patrick; Murawski, Steven. (2017). CTD data and sediment sample location data collected aboard the R/V Weatherbird II cruise WB-0816 in the Gulf of Mexico from 2016-08-07 to 2016-09-09 [Data set]. Harte Research Institute. https://doi.org/10.7266/n7ws8r9k 2017 publication International DOI Foundation (IDF) https://doi.org/10.7266/n7ws8r9k https://doi.org/10.7266/n7ws8r9k HTTPS https://doi.org/10.7266/n7ws8r9k GRIIDC Associated Publication UDI: R4.x267.179:0026 information Schwing, Patrick; Murawski, Steven author Harte Research Institute publisher tableDigital crossReference collection Brooks, Gregg R., and Larson, Rebekka A. (2018). Bulk density and porewater data collected onboard R/V Weatherbird II cruise WB-0816 and field expeditions in the Gulf of Mexico from 2016-08-05 to 2016-09-09 [Data set]. Harte Research Institute. https://doi.org/10.7266/n7br8qhj 2018 publication International DOI Foundation (IDF) https://doi.org/10.7266/n7br8qhj https://doi.org/10.7266/n7br8qhj HTTPS https://doi.org/10.7266/n7br8qhj GRIIDC Associated Publication UDI: R4.x267.000:0007 information Brooks, Gregg R., and Larson, Rebekka A. author Harte Research Institute publisher tableDigital crossReference collection Brooks, Gregg R., and Larson, Rebekka A. (2019). Sediment texture and composition data collected aboard R/V Weatherbird II cruise WB-0816 in the Gulf of Mexico from 2016-09-08 to 2016-09-09 [Data set]. Harte Research Institute. https://doi.org/10.7266/n7-380p-k210 2019 publication International DOI Foundation (IDF) https://doi.org/10.7266/n7-380p-k210 https://doi.org/10.7266/n7-380p-k210 HTTPS https://doi.org/10.7266/n7-380p-k210 GRIIDC Associated Publication UDI: R4.x267.000:0008 information Brooks, Gregg R., and Larson, Rebekka A. author Harte Research Institute publisher tableDigital crossReference collection Brooks, Gregg R., and Larson, Rebekka A. (2019). Short-lived radioisotope (SLRad) data collected aboard R/V Weatherbird II cruise WB-0816 in the Gulf of Mexico from 2016-08-14 to 2016-09-09 [Data set]. Harte Research Institute. https://doi.org/10.7266/n7-cdrm-g239 2019 publication International DOI Foundation (IDF) https://doi.org/10.7266/n7-cdrm-g239 https://doi.org/10.7266/n7-cdrm-g239 HTTPS https://doi.org/10.7266/n7-cdrm-g239 GRIIDC Associated Publication UDI: R4.x267.000:0009 information Brooks, Gregg R., and Larson, Rebekka A. author Harte Research Institute publisher tableDigital crossReference collection Gregg Brooks and Rebekka Larson. (2019). Sediment core photographs collected aboard R/V Weatherbird II cruise WB-0816 in the Gulf of Mexico from 2016-08-05 to 2016-09-09 [Data set]. Harte Research Institute. https://doi.org/10.7266/n7-5gnm-zd54 2019 publication International DOI Foundation (IDF) https://doi.org/10.7266/n7-5gnm-zd54 https://doi.org/10.7266/n7-5gnm-zd54 HTTPS https://doi.org/10.7266/n7-5gnm-zd54 GRIIDC Associated Publication UDI: R4.x267.000:0132 information Gregg Brooks and Rebekka Larson author Harte Research Institute publisher tableDigital crossReference collection eng; USA utf8 environment oceans geoscientificInformation -97.566 -86.67858 18.4522 29.30495 2016-08-05 2016-09-09 1. GRIIDC dataset R4.x267.179:0026; CTD data and sediment sample location data: 1.1 CTD data - Depth [salt water depth, m]; Temperature [deg C]; Conductivity [S/m]; Salinity [PSU]; Oxygen Saturation [umol/Kg]; Oxygen, SBE 43 [umol/Kg]; Fluorescence, WET Labs CDOM [mg/m^3]; Fluorescence, WET Labs ECO-AFL/FL [mg/m^3]; Turbidity, WET Labs ECO [NTU]; Density [density, Kg/m^3]; Average Sound Velocity [Chen-Millero, m/s]; PAR/Irradiance, Biospherical/Licor; Sound Velocity [Chen-Millero, m/s]; Altimeter [m]; Latitude [deg]; Longitude [deg]. CTD files are named based on the station where the data were collected or based on a pre-cruise equipment test. If the file name is based on the station where the data were collected, then the naming convention is - <cruise-station-date-cast> (if there are more than casts at the station). For example, file WB0816SIXW75008152016cast1 indicates that the cruise = WB0816, where the station = SIXW750, the date = 08152016 and the cast = cast1. 1.2 Sediment sample location data - Site # [station location, ID]; Collection Date [mm/dd/yyyy]; Latitude [degree minute]; Longitude [degree minute]; Water Depth [meter]; Core Sample Label [text]; Allocation [text]; Length [mm]. 2. GRIIDC dataset R4.x267.000:0007; Bulk density/porewater data: Latitude and longitude of core site (decimal degrees), water depth of core site (m), core collection date (mm/dd/yyyy), site identification (ID), core identification (id), top depth of interval (mm), bottom depth of interval (mm), average depth of interval (mm), sediment wet weight (g), sediment dry weight (g), sample volume (cm3), bulk density (g/cm3), porewater (%), laboratory/facility analysis was performed at. Bulk density was calculated using sediment dry weight (g) and sample volume (cm3). Blank cell denotes analysis not performed for the interval, no data generated. 3. GRIIDC dataset R4.x267.000:0008; Sediment texture and composition data: Sediment core collection latitude and longitude (decimal degrees), water depth (m), core collection date (mm/dd/yyyy), site identification (ID), core identification (ID), top depth of interval (mm), bottom depth of interval (mm), average depth of interval (average of top and bottom depths, mm), percent gravel (by dry weight), percent sand (by dry weight), percent silt (by dry weight), percent clay (by dry weight), percent mud (calculated by adding percent silt and clay, by dry weight), percent carbonate (by dry weight), percent total organic matter (TOM) by loss on ignition (LOI) (by dry weight), percent other (non-carbonate, non-organic; by dry weight), laboratory/facility where analysis was performed. 4. GRIIDC dataset R4.x267.000:0009; Short-lived radioisotope (SLRad) data: Water depth of core site (m), core collection date (mm/dd/yyyy), site identification (ID), sediment core identification (ID), top depth of interval (mm), bottom depth of interval (mm), average depth of interval (mm), 210Pb (Lead) total (dpm/g), 210Pb (Lead) total error (dpm/g), 234Th (Thorium) Total (dpm/g), 234Th (Thorium) error (dpm/g), re-Analysis of 234Th (Thorium) activity (dpm/g) represent 234ThSup (“supported” Thorium), re-Analysis of 234Th (Thorium) activity error (dpm/g) represent 234ThSup (“supported” Thorium), 137Cs (Caesium) activity (dpm/g), 137Cs (Caesium) activity error (dpm/g), 7Be (Beryllium) activity (dpm/g), 7Be (Beryllium) activity error (dpm/g), 214Pb (Lead, 295 keV) activity (dpm/g), 214Pb (Lead, 295 keV) actvity error (dpm/g), 214Pb (Lead, 351 keV) activity (dpm/g), 214Pb (Lead, 351 keV) actvity error (dpm/g), 214Bi (Bismuth) activity (dpm/g), 214Bi (Bismuth) activity error (dpm/g), 210PbSup (“supported” Lead) activity (dpm/g), 210PbSup (“supported” Lead) activity error (dpm/g), 210Pbxs (Excess Lead) activity (dpm/g), 210Pbxs (Excess Lead) activity error (dpm/g), decay corrected 210Pbxs (Excess Lead) activity (dpm/g), decay corrected 210Pbxs (Excess Lead) activity error (dpm/g), 234Thxs (Excess Thorium) activity (dpm/g), 234Thxs (Excess Thorium) activity error (dpm/g), decay corrected 234Thxs (Excess Thorium) activity (dpm/g), decay corrected 234Thxs (Excess Thorium) activity error (dpm/g), laboratory/ facility analysis was performed at: Eckerd College, St. Petersburg FL. Blank cell denotes no analysis performed. 5. GRIIDC dataset R4.x267.000:0132; Sediment core photographs data: Dataset contains sediment core photographs (unitless). An excel spreadsheet contains all the photographs filename, the corresponding core id, collection date (mm/dd/yyyy), latitude and longitude (degrees minutes, decimal degrees), and water depth (m). 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. Originator data format 106.5 https://www.ncei.noaa.gov/archive/accession/0226799 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/226799 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/226799 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0175/0226799/ 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 0226799 v1.1 was published. 2021-04-14T12:33:39Z NCEI Accession 0226799 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0226799/1.1 HTTPS NCEI Accession 0226799 v1.1 published 2021-04-14T12:33:39Z download dataset Parameter or Variable: water depth (measured); Units: m; Observation Category: in situ; Sampling Instrument: N/A Parameter or Variable: CARBON - CARBONATE (measured); Units: percent; Observation Category: laboratory analysis; Sampling Instrument: Ocean Instrument MC-800 Multicore Parameter or Variable: CHEMISTRY - SEDIMENT (measured); Units: percent; Observation Category: laboratory analysis; Sampling Instrument: Multiple Corer Parameter or Variable: SEDIMENTS (measured); Units: perch; Observation Category: laboratory analysis; Sampling Instrument: Ocean Instrument MC-800 Multicore Parameter or Variable: SEDIMENT - POREWATER CHEMISTRY (measured); Units: percent; Observation Category: laboratory analysis; Sampling Instrument: corer Parameter or Variable: SEDIMENT - GRAIN SIZE (measured); Units: N/A; Observation Category: laboratory analysis; Sampling Instrument: N/A Parameter or Variable: CORE - BULK DENSITY (measured); Units: g/cm3; Observation Category: laboratory analysis; Sampling Instrument: multiple corer Parameter or Variable: WATER TEMPERATURE (measured); Units: degrees C; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: CONDUCTIVITY (measured); Units: S/m; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: SALINITY (measured); Units: psu; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: oxygen saturation (measured); Units: umol/Kg; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: OXYGEN (measured); Units: umol/Kg]; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: Fluorescence (measured); Units: mg/m^3; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: turbidity (measured); Units: NTU; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: WATER DENSITY (measured); Units: Kg/m^3; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: average sound velocity (measured); Units: m/s; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: PHOTOSYNTHETIC ACTIVE RADIATION (PAR) (measured); Units: m/s; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: irradiance (measured); Units: m/s; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: SOUND VELOCITY (measured); Units: m/s; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: ALTIMETER - SEA SURFACE MEASUREMENT (measured); Units: m; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: LATITUDE (measured); Units: degree; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: LONGITUDE (measured); Units: degree; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: sediment sample length (measured); Units: mm; Observation Category: laboratory analysis; Sampling Instrument: corer Parameter or Variable: FLUORESCENCE (measured); Units: m/s; Observation Category: in situ; Sampling Instrument: CTD asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian corer corer submersible, hydraulic rotary coring drill CTD CTD Conductivity-Temperature-Depth probe fluorometer fluorometer fluorometer sediment sampler - corer sediment sampler - corer sediment coring device gravity or other coring device used to collect surfacial and near-surficial sediment samples sediment sampler - grab sediment sampler - grab grab sampler is used to take a sample of surficial seafloor sediments turbidity sensor turbidity sensor Measures the turbidity of water Turbidity sensors measure the amount of light that is scattered by suspended solids in a liquid, such as water. When the concentration of total suspended solids (TSS) and total dissolved solids (TDS) in a liquid increase, the turbidity also increases.