Definitions for "Mean tide level"
Keywords:  arithmetic, tide, niveau, moyen, mtl
The level half way between mean high water and mean low water. It should not be confused with mean sea level. Also called half- tide level.
" Niveau moyen de marée" Midpoint between " Mean high water" and " Mean low water".
(MTL) A plane midway between mean high water and mean low water. Not necessarily equal to mean sea level.