Relation between the moon's gravitation and the level of ocean

[kiru]

Will anybody let me know what is the relation between the moon's gravitation and the level of ocean in earth?As far I know that during newmoon and full moon day the level of ocean increases.

 

[marcus]

Will anybody let me know what is the relation between the moon's gravitation and the level of ocean in earth?As far I know that during newmoon and full moon day the level of ocean increases.

both the moon and the sun have a tidal effect on the Earth ocean

at time of new moon/full moon the moon and sun are ALIGNED so they work in the same direction and reinforce each other tidal effect

so the high tide is higher than usual and the
low tide is lower than usual


the average level of ocean doesn't change, I think, it is higher some places and lower other places, but same average