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      • Customized predictions are calculated "on-the-fly" and are available in graphical and text format. Six-minute, half-hour and hourly tidal current predictions can be generated for all stations with harmonic constituents.
      ports.noaa.gov › noaacurrents › About

      NOAA Current Predictions - Current Predictions

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  3. ports.noaa.gov › noaacurrents › AboutNOAA Current Predictions - Current Predictions

    Six-minute, half-hour and hourly tidal current predictions can be generated for all stations with harmonic constituents. The product also offers predicted time and speed of maximum flood/ebb current and timing of slack water (no current) for all stations available in the published current tables.

  4. ports.noaa.gov › about_harmonic_constituentsAbout Harmonic Constituents - NOAA Tides & Currents

    Tide predictions are a calculation, summing the effects of the 37 Cosine Curves for a set of harmonic constants; resulting in the complex curve of the tides. How are Harmonic Constants generated? Harmonic constants can only be calculated through the analysis of tidal data collected at a location.

  5. marinenavigation.noaa.gov › forecastsForecasts and Predictions - National Oceanic and Atmospheric ...

    Tide predictions are a calculation of what the water level will be based on tidal harmonic constituents - driven by lunar cycles. The predictions are offered in various time intervals and can be referenced to a variety of tidal datums. They can be generated "on-the-fly" for all stations with harmonic constituents.

  6. co-ops.nos.noaa.gov › PageHelpTide Predictions - Help - NOAA Tides & Currents

    Tide predictions are provided for two “classifications” of stations - Harmonic and Subordinate. Harmonic stations are stations with tidal harmonic constants and tidal datums. Tide predictions for harmonic stations are generated directly from the harmonic constants.

    • Can tidal current predictions be generated for all stations with harmonic constituents?1
    • Can tidal current predictions be generated for all stations with harmonic constituents?2
    • Can tidal current predictions be generated for all stations with harmonic constituents?3
    • Can tidal current predictions be generated for all stations with harmonic constituents?4
    • Can tidal current predictions be generated for all stations with harmonic constituents?5

  7. co-ops.nos.noaa.gov › productsCO-OPS Products - NOAA Tides & Currents

    • Tides / Water Levels
    • Currents
    • Links / Web Services

    The site is updated every quarter; during the first two weeks of January, April, July and October. The quarterly updates may include the addition of new stations, updating subordinate and harmonic stations, and removal of superseded stations.

    See full list on co-ops.nos.noaa.gov

    Each year, CO-OPS measures currents at many coastal locations in order to provide accurate tidal current predictions for the maritime community. These data sets typically range from one to three months in length and at most locations, data are available throughout the water column. This page contains the raw current measurements taken during these ...

    See full list on co-ops.nos.noaa.gov

    The Storm QuickLook product provides a real-time synopsis of oceanographic information when coastal areas are threatened by a tropical storm or hurricane. The product integrates water level and meteorological observations with National Weather Service tropical cyclone track and intensity information.

    See full list on co-ops.nos.noaa.gov

  8. www.vims.edu › research › unitsTide Prediction | Virginia Institute of Marine Science

    HAMELS vs. NOAA/NOS. Armed with as few as nine of the major tidal constituents (see tide analysis module ), you can make a quite respectable tide prediction using the HAMELS method (Harmonic Analysis, Method of Least Squares). One model that HAMELS can use is simply the sum of nine tidal constituents symbolized as follows:

  9. tidesandcurrents.noaa.gov › publications › techrpt21NOAA Technical Memorandum NOS CO-OPS 0021

    tidal currents. All the programs are written in FORTRAN. 1.2. Comparison of Tidal and Tidal Current Analysis Tides and tidal currents are driven by the gravitational forces of the sun and the moon acting on the earth’s oceans. The rotation of the earth causes the cyclical rise and fall of the ocean levels