Clouds over the Indian Ocean (IMAGE) Oregon State University Caption Clouds form over the Indian Ocean as the sun sets. A new study has found that In tropical oceans, a combination of sunlight and weak winds drives up surface temperatures in the afternoon, increasing atmospheric turbulence. Credit Derek Coffman, NOAA. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.