Longest Total Solar Eclipse and its impact on Ocean Temperature

July 22, 2009. The Longest Total Solar Eclipse of the 21st century will pass over India, China and through the Pacific Ocean off the Southern tip of Japan. What is its impact on ocean temperature and current. An eclipse is an amazing natural phenomenon. The sun's light is blocked by the moon. During this time sunlight is dimmed, the air cools. Birds are tricked into flying back to their nests and flowers close. How much will this change in direct sunlight and cooling affect ocean temperature and air along the path of the eclipse. It is the longest solar eclipse and passes over significant swath of ocean. We will soon find out.