This map shows the information about the current flows in the world. To begin with, we can see that due to the solar warming of ocean waters, the warm shallow current flows from the Pacific Ocean to the Atlantic ocean through the Indian ocean. According to the graph, the heat transfers from sea to air, so the cold and salty deep current then flows back to the Pacific ocean. Last but not the least, some flows join the warm shallow current on the halfway at the Indian ocean. In conclusion, this is a very useful graph, and it helps us to understand the current flow condition.