What is the difference between elevation and sea level

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Although because of tides, that changes as much as 8 feet a couple of times a day. Still the best answer is that sea level is zero feet of altitude. Sea level is the base level for measuring elevation and depth on Earth. Because the ocean is one continuous body of water, its surface tends to seek the same level throughout the world.

However, wind s, current s, river discharge s, and variations in gravity and temperature prevent the sea surface from being truly level. Encyclopedic entry. June 11, 1 min read. The elevation of an object is it's height above sea level.

Sometimes elevation and altitude are using interchangeable, however, altitude is the vertical distance between an object and the earth's surface.

So if for example, a plane was flying over a mountain range, the plane's altitude would be the verticle distance from the plane to the surface of the mountain range whereas the elevation of the plane would be the height of the plane above sea level. Relief is the difference in height elevation between geographic features.