Tide and water level datums are standard elevations used to reference water level heights and depths. Each type of datum represents a unique phase or behavior of the water along the coast or in the Great Lakes. CO-OPS and its partners are currently in the midst of two large-scale datum updates for the National Tidal Datum Epoch (NTDE) and the International Great Lakes Datum (IGLD).
CO-OPS water level station 8465705 in New Haven, CT. There are over 200 stations like these across the nation collecting continuous water level data. Their data will be used to calculate the new datums.
Website Owner:Center for Operational Oceanographic Products and Services