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Politics : Formerly About Advanced Micro Devices

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To: Tenchusatsu who wrote (895743)10/22/2015 5:29:46 PM
From: Wharf Rat  Read Replies (4) of 1575512
 
I believe I do. Do you understand that all oceans aren't equal?

3. Is sea level of the Atlantic and Pacific oceans the same? If so, why are locks required in Panama?
Sea level is about 20 cm higher on the Pacific side than the Atlantic due to the water being less dense on the Pacific side, on average, and due to the prevailing weather and ocean conditions. Such sea level differences are common across many short sections of land dividing ocean basins.

The 20 cm difference is determined by geodetic levelling from one side to the other. This levelling follows a 'level' surface which will be parallel to the geoid (see FAQ #1). The 20 cm difference at Panama is not unique. There are similar 'jumps' elsewhere e.g. Skagerrak, Indonesian straits.



Why is the sea level higher off the coast of Bermuda than New York?
A strong northward current, the Gulf Stream, flows between Bermuda and New York. This current is deflected to the right by the Coriolis effect (a result of the rotation of the Earth), towards Bermuda. Thus, sea levels at Bermuda are typically 1 metre higher than at Charleston, South Carolina, with respect to the geoid, see FAQ #1.

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