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    • Sentinel-3B OLCI Inland Waters (ILW) Data, version 4

    Metadata Updated: October 23, 2025

    The Inland Waters dataset (ILW) provides data for lakes and other water bodies across the contiguous United States (CONUS) and Alaska. ILW significantly reduces the processing effort required by end users and is a standardized community resource for lake and reservoir algorithm development and performance assessment. The data is provided for 15,450 CONUS waterbodies with a size of at least one 300 m pixel and over 2,300 resolvable lakes with sizes greater than three 300 m pixels. Alaska has 5,874 lakes resolvable lakes. ILW was developed in collaboration with the Cyanobacteria Assessment Network (CyAN). Additional inland water details and resources, including maps of resolvable lakes and additional inland water products, such as true color imagery, are available at the CyAN site.

    Access & Use Information

    Public: This dataset is intended for public access and use. 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.

    Downloads & Resources

    Dates

    Metadata Created Date June 8, 2024
    Metadata Updated Date October 23, 2025

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 8, 2024
    Metadata Updated Date October 23, 2025
    Publisher NASA/GSFC/SED/ESD/GCDC/OB.DAAC
    Maintainer
    Identifier C2954424200-OB_DAAC
    Data First Published 2022-09-13
    Language en-US
    Data Last Modified 2025-04-23
    Category geospatial
    Public Access Level public
    Bureau Code 026:00
    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 bc67654b-5910-41f7-9a11-d602db1e41b6
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/S3B/OLCI/L2/ILW/4
    Metadata Type geospatial
    Old Spatial -180.0 -90.0 180.0 90.0
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash b2b77e5e47affb828eee3d169100b59023583fda19a093ecefc1ceee46ec5a54
    Source Schema Version 1.1
    Spatial
    Temporal 2018-04-25T00:00:00Z/2024-05-06T00:00:00Z

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