Abstract
Ocean plays an important role in the global climate system by exchanging heat, momentum and fresh water flux through the ocean surface with atmosphere. Since atmospheric circulation is mainly driven by sea surface temperature in the ocean, heat transfer from the ocean to the atmosphere is critical in the climate system. In this paper we demonstrate importance of the ocean and describe heat energy cycle in the ocean and the atmosphere. Moreover, we briefly explain about El Niño and Southern Oscillation (ENSO) as an example of air-sea interaction.
