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    • Hampton Harbor, NH Tide Gauge

    Metadata Updated: December 26, 2024

    Tide gauge located in Hampton Harbor, NH. Funded by NERACOOS. Data is reported in elevation above MLLW (NAVD88) in feet and also converted to meters. NOAA uses Mean Lower Low Water (MLLW), which is the average height of the lowest tide recorded at a tide station each day during a 19-year recording period, known as the National Tidal Datum Epoch.[5] MLLW is only a mean, so some tidal levels may be negative relative to MLLW; see also mean low water spring. The 19-year recording period is the nearest full year count to the 18.6-year cycle of the lunar node regression, which has an effect on tides. At this location Mean Sea Level (MSL) is 1.308 meters above MLLW Benchmark used: NOAA Station ID: 8440452 - PLUM ISLAND, MERRIMACK RIVER ENTRANCE (with extrapolated estimate) MSL meters = (MLLW ft. * 0.3048) + GAUGE location correction.

    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.

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    Dates

    Metadata Date December 20, 2024
    Metadata Created Date April 30, 2021
    Metadata Updated Date December 26, 2024
    Reference Date(s) December 20, 2024 (creation)
    Frequency Of Update

    Metadata Source

    Harvested from ioos

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date December 20, 2024
    Metadata Created Date April 30, 2021
    Metadata Updated Date December 26, 2024
    Reference Date(s) December 20, 2024 (creation)
    Responsible Party Onset Hobolink (Point of Contact)
    Contact Email
    Guid ONSET_hamptonbay_hourly_water_level
    Access Constraints
    Bbox East Long -70.8185
    Bbox North Lat 42.9001
    Bbox South Lat 42.9001
    Bbox West Long -70.8185
    Coupled Resource [{"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}]
    Frequency Of Update
    Harvest Object Id 47c372b4-e94c-4e2f-bb57-30ae313f0ce9
    Harvest Source Id 54e15a6e-6dde-4c9c-a8f0-345cc0dfccfb
    Harvest Source Title ioos
    Licence
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Point", "coordinates": [-70.8185, 42.9001]}
    Progress
    Spatial Data Service Type ERDDAP tabledap
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2019-09-25T17:00:00Z
    Temporal Extent End 2023-09-17T12:00:00Z

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