Cinematic 4K. Tides are the rise and fall of sea levels caused by the combined effects of gravitational forces exerted by the sun and rotation of the Earth. Tide tides flux reflux ebb flow tidal nature events oasis desert flooding flood first water supply semi diurnal flat sand land ground canal soil level lake eyre flow flux invasion invasion incursion irruption spreading over increase rise leak leakage seepage flush irrigate barrens badlands land drought flat dry arid climate dryness aridness plant fields field medcezir gelgit brown transparent