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YM Tidal Definitions

  1. Chart Datum
    Usually LAT
  2. LAT
    • Lowest Astronomical Tide
    • Lowest level tide will fall
  3. HAT
    • Highest Astronomical Tide
    • Highest level tide will rise
  4. Tidal Height
    Height of the tide above Chart Datum
  5. Low Water
    Lowest level of tide during a tidal cycle
  6. High Water
    Highest level of tide during a tidal cycle
  7. Tidal Range
    Difference between level of water at high and low water
  8. Neap Tide
    Occurs just after half moon
  9. Spring Tide
    Occur just after new and full moons
  10. MHWN/MLWN
    • Mean High/Low Water Neaps
    • Average height of a neap tide at high and low water
  11. MHWS/MLWS
    • Mean High/Low Water Springs
    • Average height of a spring tide at high and low water
  12. Rise of Tide
    Height of tide above low water for a particular tidal cycle.
  13. Charted Depth
    Depth below Chart Datum
  14. Drying Height
    Height above Chart Datum for which an object dries
  15. Depth of Water
    Height of tide plus charted depth
  16. Clearance Under an Object
    Height of object from HAT
Author
Tralala
ID
334111
Card Set
YM Tidal Definitions
Description
YM Tidal Definitions
Updated

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