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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    Nearshore Substrate Mapping Change Analysis using Multispectral Imagery, California South Coast MPA Baseline Study, 2011 to 2012

    Metadata Updated: July 24, 2025

    Three remote sensing datasets were utilized to create the final substrate map products: 1) 4-banded imagery collected in June, October and November of 2012 by Keystone Aerial Mapping with its Microsoft UltraCam-X (used for 2012 intertidal and kelp mapping); 2) 4-banded imagery collected in December of 2011 by Ocean Imaging using its DMSC MK II sensor (used for 2011 kelp mapping); 3) Light Detection and Ranging (LiDAR) topographic data collected by Fugro Earth Data in March, 2010. The LiDAR dataset (providing high resolution topographical data of the intertidal zone) proved to be less useful for intertidal zone delineation than for the North Central California Coast (NCC). This was due to data format issues and some obvious errors in the SCR dataset in the lower intertidal to subtidal zones. However, the LiDAR dataset was used whenever possible. Field data and photographs collected for this project between 2013-2014 were also utilized to divide the terrestrial, intertidal and subtidal areas into subzones helping to create subzone-specific training sets used in the supervised classification procedure. Each subzone classification was then manually edited in order to ensure the highest accuracy product possible, and then mosaicked together into subregions of the overall SCR. The habitat classes this process confidently identified and mapped using the multispectral imagery for the sub/intertidal zones were:

    1 - Whitewash/Undefined 2 - Water 3 - Sandy Beach 4 - Mixed Red/Brown Algae 5 - Shadow 6 - Terrestrial Vegetation 7 - Unvegetated Rock 8 - Beach Wrack 9 - Kelp/Brown Algae 10 - Blue-Green Algae 11 - Mixed Rock/Mussels/Barnacles/Anemone 12 - Cobble 13 - Man-made/Artificial 14 - Driftwood 15 - Surf Grass 17 - Eel Grass 21 - Green Algae 22 - Submerged Sandy Bottom 23 - Submerged Rock/Reef 24 - Deep Water

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: See this page for license information.

    Downloads & Resources

    Dates

    Metadata Created Date September 8, 2021
    Metadata Updated Date July 24, 2025

    Metadata Source

    Harvested from State of California

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 8, 2021
    Metadata Updated Date July 24, 2025
    Publisher California Ocean Protection Council
    Maintainer
    Identifier fd5eda79-57fe-4001-9bad-75f7b04b55f7
    Data First Published 2017-12-22T21:50:40.538905
    Data Last Modified 2018-05-15T18:22:45.472080
    Category Natural Resources, Water
    Public Access Level public
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id b780fb0a-77c3-4bc0-a6fc-85e16423cf89
    Harvest Source Id 3ba8a0c1-5dc2-4897-940f-81922d3cf8bc
    Harvest Source Title State of California
    License http://www.opendefinition.org/licenses/cc-by
    Source Datajson Identifier True
    Source Hash 2c67558e60c3eb603014707d7984ca4f17f3343d518386626f78def5cc47661e
    Source Schema Version 1.1

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