• Fire Island National Seashore Sediment Profile Image (SPI) Analysis and Coastal/Marine Ecological Classification Standard (CMECS) Classification Data

    Metadata Updated: March 17, 2021

    Sediment Profile Image (SPI) Analysis and Coastal/Marine Ecological Classification Standard (CMECS) Classification Data used to construct benthic habitat maps for FIIS. Sediment profile imagery (SPI) provides an in-situ perspective of the seafloor and associated characteristics. Specifically, the camera takes a profile photograph of the sediment-water interface, which offers information about the biological and environmental attributes of the surface of the seafloor, the substrate just below the seafloor, and the overlying water column. SPI imagery has been used as the basis for or to complement ecological studies for several decades (for further reading, refer to Germano et al., 2011; Solan et al., 2003; Germano et al., 1989). For this study, SPI images were collected to corroborate and complement the acoustic and grab sample data. Images were taken at each grab sample site and also along a series of planned transects designed to cross boundaries identified in the sidescan mosaics. All deployments of the camera were done in triplicate, resulting in six images per site (one deployment of the camera captures two images ten seconds apart). The images were processed and analyzed in Adobe Photoshop CS3. Color and contrast adjustments were applied to enhance the images for detection of features. Geological and biological features were identified and described through expert interpretation of the images, including relative grain size, bedforms, biogenic features, and presence of seagrass and organisms (identified to lowest taxonomic level). Furthermore, consistent settings were applied when taking penetration and apparent redox potential discontinuity (aRPD) measurements. The aRPD value indicates the depth at which the sediment transitions from being oxidized to reduced (Gerwing et al., 2017).

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided.

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    References

    https://irma.nps.gov/DataStore/Reference/Profile/2278245

    Dates

    Metadata Created Date March 17, 2021
    Metadata Updated Date March 17, 2021

    Metadata Source

    Harvested from NPS-Harvest - NRSS Data Store

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date March 17, 2021
    Metadata Updated Date March 17, 2021
    Publisher National Park Service
    Unique Identifier Unknown
    Maintainer
    Identifier NPS_DataStore_2278245
    Data First Published 2017-04-19
    Data Last Modified 2017-04-19
    Category Tabular Dataset
    Public Access Level public
    Bureau Code 010:24
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID D:\IRMA\DataStore\Application\OpenData\v1.1\NPS-DataStore.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Data Quality True
    Harvest Object Id 15e2fa2e-2c57-4b35-b2a2-5e4801840f22
    Harvest Source Id a73e9b95-126c-4791-a8f2-46fc064cdc62
    Harvest Source Title NPS-Harvest - NRSS Data Store
    Homepage URL https://irma.nps.gov/DataStore/Reference/Profile/2278245
    Program Code 010:118, 010:119
    Related Documents https://irma.nps.gov/DataStore/Reference/Profile/2278245
    Source Datajson Identifier True
    Source Hash 89e47743cafbe29e6593dc9b52084f576f3e8a5c
    Source Schema Version 1.1
    Spatial -73.23551,40.62486,-72.7532,40.7806244
    Temporal 2014-01-01/2015-01-01

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