(Shalowitz,1963) mean low tide The mean average of all the low tides (high low tides and low low tides) occurring over a certain period of time, usually 18.6 years (one lunar epoch).
(Shalowitz,1963; mean; low tide) (The mean average of all the low tides; occurring; T:over a certain period of time)
Shalowitz,1963 The mean average of all the low tides
mean occurring
low tide
T:over a certain period of time