Where do all cold and warm ocean currents originate?

I'm wondering whether: surface currents and warm currents and cold currents and deep ocean currents are the same thing.

theres this place called managua in nicaragua and it is in central america and is 20 miles away from the ocean. The ocean current around there is warm but in my mind im thinking if a place is near the ocean then it would be colder but this place is warmer...

How are Debris Convergence Zones related to ocean currents ? Where else in the world’s oceans are "garbage patches" likely to form? Also hundreds of millions of years ago, all the continents on Earth were connected to form a giant “supercontinent...

I want to get actual data (or information as to where I can get the data) for the ocean currents of the Pacific Ocean on the continental slope. Specifically, I am interesed in finding, if possible, data as to ocean currents at the level of the sea floor...

I am staying at the Hilton, which is located at km 17 and I've been reading reviews from tourists that you can't swim in the water b/c of the currents. Is this true? This hotel is located towards the bottom portion of the 7 shape of the island. Should...

Which ocean currents and Prevailing winds be similar and which would be different? If there were any reasons in why they are different, would that be because of their depth? Example, deep ocean currents are not greatly influenced by air masses, right...