This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: tides each day Movement is circular rather than east-west: When the sun and moon work together we get big spring tides, when they work against each other we get small neap tides. When tide is high on west coast it is low on the east coast ccwise in N hem, cwise in S hem Height of tide increases from center of ocean basin Main force = gravitational pull from the moon (creates bulge in earth) Smaller force = gravitational pull from the sun Earth-Moon-Sun system creates 28 day cycle: Biggest range = spring tides = full moon and new moon Smallest range = neap tides = half moon seen in the AM and PM ` Tide chart shows spring/neap tides, full/new/half moon phases, 2 Hi & 2 Lo tide Amphridromic points are points where theres no tides because they revolve around these areas...
View Full Document
- Fall '08