Mean high water springs

Definition of Mean high water springs (MHWS): The height of mean high water springs is the average throughout a year of the heights of two successive high waters during those periods of 24 hours (approximately once a fortnight) when the range of the tide is greatest.. This is the common definition for Mean high water springs (MHWS), other definitions can be discussed in the article

See also

1. Tides
2. Mean high water neaps
3. Mean low water springs