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    • Regional Ocean Modeling System (ROMS): Guam

    Metadata Updated: July 29, 2025

    Regional Ocean Modeling System (ROMS) 6-day, 3-hourly forecast for the region surrounding Guam and parts of the Commonwealth of the Northern Mariana Islands (CNMI) at approximately 2-km resolution. Boundary conditions provided by the wider ROMS model for the region surrounding the Western North Pacific (roms_mari) at approximately 4-km resolution. Atmospheric forcing generated by the Weather Research and Forecasting (WRF) model for the region surrounding Guam and parts of the Commonwealth of the Northern Mariana Islands (CNMI) (wrf_guam) at approximately 3-km resolution. Tide forcing uses the Oregon State University (OSU) Tidal Prediction Software (OTPS) TOPEX/Poseidon global inverse solution (TPXO) to derive barotropic tidal elevation and velocity. Data are assimilated over the previous 3 days using all available observations to improve the model estimate of current ocean state (its nowcast) before forecasts are run. Assimilated observations may include satellite-based sea surface temperatures from MODIS, AVHRR, or OSTIA; satellite-based sea surface height from AVISO; and in-situ water temperature and salinity profiles from ARGO floats. While considerable effort has been made to implement all model components in a thorough, correct, and accurate manner, numerous sources of error are possible. As such, please use these data with the caution appropriate for any ocean related activity.

    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.

    Downloads & Resources

    Dates

    Metadata Date February 21, 2025
    Metadata Created Date April 30, 2021
    Metadata Updated Date July 29, 2025
    Reference Date(s) October 4, 2013 (creation), October 4, 2013 (issued), May 28, 2015 (revision)
    Frequency Of Update

    Metadata Source

    Harvested from ioos

    Other Data Resources

    Graphic Preview

    Sample image.

    Additional Metadata

    Resource Type Dataset
    Metadata Date February 21, 2025
    Metadata Created Date April 30, 2021
    Metadata Updated Date July 29, 2025
    Reference Date(s) October 4, 2013 (creation), October 4, 2013 (issued), May 28, 2015 (revision)
    Responsible Party University of Hawaii at Manoa (Point of Contact)
    Contact Email
    Guid roms_marig
    Access Constraints
    Bbox East Long 146.97229
    Bbox North Lat 15.97538
    Bbox South Lat 11.93739
    Bbox West Long 142.91875
    Coupled Resource [{"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}]
    Frequency Of Update
    Graphic Preview Description Sample image.
    Graphic Preview File http://pacioos.org/metadata/browse/roms_marig.png
    Harvest Object Id 645f9921-5e42-4b57-8331-795a6690fdc4
    Harvest Source Id 54e15a6e-6dde-4c9c-a8f0-345cc0dfccfb
    Harvest Source Title ioos
    Licence
    Lineage 2013-10-04T00:00:00Z New dataset. 2015-05-28T00:00:00Z Model grid modified; aggregation now begins at 2015-04-15T00:00:00Z. 2020-07-09T00:00:00Z Spatial alignment around Saipan improved (T. Friedrich). 2024-03-27T20:08:00Z Dataset now begins at 2023-01-01T00:00:00Z. 2025-01-08T18:46:00Z Dataset now begins at 2024-01-01T00:00:00Z.
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[142.91875, 11.93739], [146.97229, 11.93739], [146.97229, 15.97538], [142.91875, 15.97538], [142.91875, 11.93739]]]}
    Progress
    Spatial Data Service Type THREDDS OPeNDAP
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2024-01-01T00:00:00Z
    Temporal Extent End 2024-12-31T00:00:00Z

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