Prof./Dr. Toshio Yamagata is known as a researcher of various ocean-rooted climate modes influencing the world climate. He received several honors for his academic achievements. Those include fellows of American Geophysical Union, American Meteorological Society (AMS), and Japan Geoscience Union. Major awards he received are the Sverdrup Gold Medal from the AMS in 2004, the Medal with Purple Ribbon from the Emperor of Japan in 2005, the Prince Albert I Gold Medal from the International Association for the Physical Sciences of the Oceans in 2015. He is an honorary member of the Oceanographic Society of Japan, a foreign associate member of l’Academie de Marine of France, and a foreign academician of Nanjing University for Information Science and Technology of China.