Spring tide and neap tide. #oxfordgeography #ras2019 PEN POINT - YouTube
File:Tide schematic.svg - Wikimedia Commons
Spring and neap tides - astronomical origin of tides
Spring, Neap and Proxigean Tides
Spring Tide Definition & Image | GameSmartz
Spring Tides: the large tides caused by the linear alignment of the sun, Earth and the moon; high tides are ver… | Astronomy lessons, Neap tides, Apologia astronomy
Extra high tides today on EarthSky | Today's Image | EarthSky