Mean high water springs
Encyclopedia
The mean high water spring is the highest level that 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.
Strandline
The strandline, or high water mark, is the area at the top of a beach where debris is deposited. Where there are tides, this line is formed by the highest position of the tide, and moves up and down the beach on a fortnightly cycle...
" where debris accumulates on the shore annually.
External links
- Definitions of various tide related terms on the Proudman Oceanographic Laboratory site.