• 0 Votes
    2 Posts
    305 Views
    idefix37I
    @Cowtipper The Tidal currents layer and the tide graph in the point forecast panel are both computed by global models with quite a large resolution. They are not able to do a precise calculation in some areas with bays, river mouths, estuaries or straits because the data resolution cannot take into account the shape of seashore and seabed. In the area you mention, this data is probably wrong in some places. At Tide forecast POIs data comes from local tide gauge stations, and are probably more accurate. In deep estuaries it is recommended to rely on local tide charts. For example if an inlet is constricted by a narrow pass, the maximum current in the pass may be offset relative to the tidal times within the pass and coincide with low tide in the pass.
  • 63 Votes
    13 Posts
    21k Views
    idefix37I
    @tandemtime There are 2 currents layers in Windy. Currents which includes all type of currents. As wind is the main factor of ocean circulation, its effect is taken into account (but not sure for a local wind) https://marine.copernicus.eu/news/new-catalogue-release-wind-wave-ocean-current-and-biogeochemical-variables Tidal currents is deducted from variation of sea altimetry https://community.windy.com/topic/15265/tidal-currents?_=1614707415967 Concerning waves models, WW3 model is said to include the effect of surface currents, WAM model apparently not. Depending where you usually sail, these layers are interesting but it is advised to rely on other traditional and official information sources for currents and their effect on sea surface, specially near the coast.
  • Tidal currents

    Your Feedback and Suggestions tidal currents currents
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    6 Votes
    4 Posts
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    idefix37I
    @suthagar1 My link here above is no longer active. Anyway, you better ask to CMEMS from Copernicus. They provide data from My Ocean / Mercator Ocean based on sea surface altimetry prediction for tidal currents. And see: https://marine.copernicus.eu/access-data/myocean-viewer