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    • CTD, water and sediment chemistry, particle sample elemental (C, N) and isotopic (13C, 15N) data, and time series photographs obtained from a marine snow profiling camera during R/V Endeavor cruise EN515 in the Gulf of Mexico from 2012-09-06 to 2012-09-16 (NCEI Accession 0208348)

    Metadata Updated: December 1, 2025

    This dataset contains CTD, water and sediment chemistry, particle sample elemental (C,N) and isotopic (13C, 15N) data, and time series photographs obtained from a marine snow profiling camera during R/V Endeavor cruise EN515 in the Gulf of Mexico from 2012-09-06 to 2012-09-16. The CTD data were collected using a CTD-rosette system. The physical and chemical properties in the water column at the Ecosystem Impacts of Oil and Gas Inputs to the Gulf (ECOGIG) seep and other study sites were characterized. The ship departed Gulfport Mississippi on cruise EN515 on 2012-09-05 to collect samples at ECOGIG and other sites before returning to Gulfport on 2012-09-16. The dataset includes binned profiles and bottle files along with the header files. The water column and sediment chemistry data includes water column salinity, pH, concentration of dissolved nutrients, dissolved gases, total particulate nitrogen (TPN), total particulate carbon (TPC), particulate organic carbon (POC), and particulate inorganic carbon data acquired from 19 CTD casts and 5 multiple corer drops. The elemental and isotopic data includes the delta 13C and 15N, total Nitrogen and Carbon, and the C/N ratio. The particle samples were collected using a CTD-rosette and a MOCNESS. Time series photographs were obtained from a marine snow profiling camera on short-term moorings. Vertical profiles of size-specific particle abundance were taken from Snowcam/Fluxcam moorings near lease blocks GC600 (profiles 1-2) and OC26 (profiles 3-5) in the Green Canyon and Mississippi Canyon, respectively. The camera, a Nikon Coolpix 995, was lowered at a steady rate of 10m/min to just above the seafloor. Images were captured every 11 seconds. The objectives were to characterize the physical and chemical properties in the water column at/near cold seeps in the northern Gulf of Mexico. All the data records also include sampling information (time, date, location, collection type, and depth).

    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 2025-03-31T20:58:19Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date December 1, 2025
    Reference Date(s) January 17, 2020 (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NOAA/NESDIS/ncei/accessions

    Other Data Resources

    Graphic Preview

    Preview graphic

    Additional Metadata

    Resource Type Dataset
    Metadata Date 2025-03-31T20:58:19Z
    Metadata Created Date December 4, 2020
    Metadata Updated Date December 1, 2025
    Reference Date(s) January 17, 2020 (publication)
    Responsible Party (Point of Contact)
    Contact Email
    Guid gov.noaa.nodc:0208348
    Access Constraints Cite as: Montoya, Joseph P.; Joye, Samantha B.; Asper, Vernon L. (2020). CTD, water and sediment chemistry, particle sample elemental (C, N) and isotopic (13C, 15N) data, and time series photographs obtained from a marine snow profiling camera during R/V Endeavor cruise EN515 in the Gulf of Mexico from 2012-09-06 to 2012-09-16 (NCEI Accession 0208348). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0208348. Accessed [date]., 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.
    Bbox East Long -88.3672
    Bbox North Lat 29.7943
    Bbox South Lat 27.3456
    Bbox West Long -90.58115
    Coupled Resource
    Frequency Of Update asNeeded
    Graphic Preview Description Preview graphic
    Graphic Preview File https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0208348
    Graphic Preview Type PNG
    Harvest Object Id 9d9f178f-ad79-4f37-946a-e67ec0d8d4a7
    Harvest Source Id c084a438-6f6b-470d-93e0-16aeddb9f513
    Harvest Source Title NOAA/NESDIS/ncei/accessions
    Licence accessLevel: Public
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-90.58115, 27.3456], [-88.3672, 27.3456], [-88.3672, 29.7943], [-90.58115, 29.7943], [-90.58115, 27.3456]]]}
    Progress completed
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2012-09-06
    Temporal Extent End 2012-09-16

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