Final answer:
The Benguela Current is the cool ocean current in the South Atlantic that inhibits cyclogenesis by providing cooler sea surface temperatures, which prevent the formation and strengthening of tropical cyclones.
Step-by-step explanation:
The cool ocean current in the South Atlantic that is proposed to inhibit cyclogenesis is likely related to the Benguela Current, which is a cold current that flows northward along the western coast of Southern Africa in the South Atlantic Ocean. This current plays a part in creating conditions less favorable for the development of tropical cyclones. Cyclones, also referred to in different regions as hurricanes or typhoons, require warm water to form and strengthen, as warm water is the energy source that drives the storm. The Benguela Current's cool waters effectively reduce the sea surface temperature, thereby inhibiting cyclone formation.
The colder waters from the Benguela Current meet the warmer waters from more northern latitudes at the zone of Subtropical Convergence, leading to upwelling and a rich environment for marine life. This cold current is part of the larger ocean circulation patterns that include both warm and cold currents such as the El Niño event, which involves a warm ocean current affecting the Pacific and can drastically change weather patterns around the world.