For the origin of currents occurring in the oceanic regions, the following factors are held responsible:
1. Nature of the Earth: Gravitational Force, Rotation
2. External Ocean Causes: Atmospheric Pressure and Winds, Evaporation and Rainfall
3. Internal Ocean Causes: Pressure, Temperature, Salinity, Density, Snow – melting.
4. Factors That Transform the Currents: Shape of Coastline, Climatic Change, Structure of oceanic bottom, etc.
