Deep ocean currents are primarily influenced by: Temperature and salinity differences Wind patterns Coastal topography Earth's magnetic field

Deep ocean currents, also known as thermohaline circulation, are primarily influenced by temperature and salinity differences. These differences affect the density of seawater, causing it to sink or rise and drive the movement of deep ocean currents. While wind patterns, coastal topography, and Earth's magnetic field can influence surface currents and other oceanic phenomena, they do not play a significant role in driving deep ocean currents.