Mean low water springs

Similar topics in Freebase

• Mean tide level

• Spring tide

• Highest astronomical tide

• Mean high water springs

  The mean high water spring is the highest level to which spring tides reach on the average over a period of time (often 19 years). This level is generally close to being the "high water mark" where debris accumulates on the shore annually.

• Mean sea level

• Approximate lowest astronomical tide

• Mean higher high water

• Local surface

• Lowest normal low water

• Gulf Coast low water datum