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    • High Resolution Empirical Tide Prediction Software Version 14

    Metadata Updated: August 23, 2025

    This dataset provides sea surface height and ocean surface currents associated with the predictable astronomical tide at the M2, S2, N2, K1, and O1 frequencies. The tidal harmonic constants, in-phase and quadrature with respect the equilibrium potential, are provided on a latitude/longitude at 1/20-deg resolution. Using the software available at the Github repository, the dataset can be used to predict baroclinic tidal sea surface height and surface ocean currents at arbitrary time and location throughout the world oceans. The harmonic constants have been computed from a combination of roughly 30 years of multi-satellite altimeter data and 20 years of data from drifting buoys. The observations are combined with a kinematic wave model and the internal wave polarization relations to prepare uniformly gridded estimates from the sparse and irregular data sampling. The dataset covers the time period from 1993 to 2021 and represents the average conditions during this period.

    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 4, 2024
    Metadata Updated Date August 23, 2025

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date June 4, 2024
    Metadata Updated Date August 23, 2025
    Publisher NASA/JPL/PODAAC
    Maintainer
    Identifier C2935657850-POCLOUD
    Data First Published 1993-01-01
    Language en-US
    Data Last Modified 2025-07-17
    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 9773cec0-71d4-4a24-a6c7-431997a3c8b1
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://doi.org/10.5067/BHRET-HUV14
    Metadata Type geospatial
    Old Spatial -180.0 -90.0 180.0 90.0
    Program Code 026:001
    Source Datajson Identifier True
    Source Hash 18a1097286655eea3d2c8bbd7a9b30b1a8fe4782bf5b4d0d0d6c88b9d8b98c12
    Source Schema Version 1.1
    Spatial
    Temporal 1993-01-01T00:00:00Z/2021-01-01T00:00:00Z

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