These are quantified by Doodson Numbers, and these do not exist at amphidromic [am-fih-DROE-mik] points. Depending on location, these can be diurnal [die-UR-nul], semi-diurnal, or mixed. When these are at their largest, they are classified as spring, and the location where these are largest is the Bay of Fundy. The spring type of this occurs twice 
These are quantified by Doodson Numbers, and these do not exist at amphidromic [am-fih-DROE-mik] points. Depending on location, these can be diurnal [die-UR-nul], semi-diurnal, or mixed. When these are at their largest, they are classified as spring, and the location where these are largest is the Bay of Fundy. The spring type of this occurs twice a month, as does the low type, which is called neap. Name these ocean phenomena in which the water level rises and falls during the course of a day.
These are quantified by Doodson Numbers, and these do not exist at amphidromic [am-fih-DROE-mik] points.
Tides