is the sea the same temp at a depth of 50m if you where at the equator or antartica?

Answer 1

It depends which sea you mean, and where you measure the temperature.

On an oceanic depth scale, 50m is still 'surface waters'and is therefore subject to surface effects. The surface waters are generally much cooler in the arctic circles than at the Equator, so I would expect that to be the case at 50 m as well.

However, it's not that simple, because the oceanic currents keep the waters circulating continuously. Circulation is generally clockwise in the northern hemisphere, and anti-clockwise in the southern, due to the interaction between the oceanic 'conveyor belt' (driven by thermal and saline gradients) and the Earth's rotation (coriolis).

That means that if you measure the water temperature at 50m in the Atlantic or the Pacific Oceans at the Equator, it will probably be warmer on the west side than the east, because at the eastern end the water is more recently arrived from colder climes, whereas on the western side it's had plenty of time in the tropical sun to warm it.

Answer 2

At 50 meters the water is cold no matter where you are. However the previous user is correct currents, distance from land mass, total depth, salinity, and other many other factors with all have some effect on the temperature.

Answer 3

At times yes. But as a rule, no. The type of under sea currents, salinity, light penetration, relative position to land and under sea formations, would all have an effect on temperature.

Answer 4

one would assume its colder in the oceans surronding antractica.. lol

Answer 5

I doubt it!!!