Professor Yaochu Yuan was born in November 1937 in Ningbo ofChina's Zhejiang Province. He studied at the Peking University's Depart-ment of Mathematics and Mechanics from September 1955 to July 1960，majoring in mechanics. Upon graduation， he taught in the same Depart-ment of his Alma Mater from 1960 to 1964. He then undertook researchin physical mechanics with the Commission of Science and Technologyfor National Defense in 1964-1973. Subsequently， he was transferred tothe Second Institute of Oceanography（ SIO） of the State Oceanic Ad-
~ministration（ SOA） ， where he is still working as a senior research sci-entist and a doctorial tutor in the field of physical oceanography.Since the 1980s， Professor Yuan has directed and/or participated in 24 in-depth studies on the circulation in the Northwestern Pacific and its marginal seas. These included 11 key， general， and major international collaborative fund projects un-der the National Natural Science Foundation of China， as well as 13 important projects， inclusive of the basic or major international collaborative projects， under the Ministry of Science and Technology of China（ MOSTC） and the SOA， and the 973 Program of the National Basic Research Program of China under the MOSTC.
Professor Yuan has published more than 200 research papers that focus on the following topics： the Kuroshio（ from its source to the south of Japan） ， the westem boundary current and deep flow east of the Ryukyu Islands， air-sea interaction of the process of cyclone outbreak over the Yellow and East China Seas and the circulation in those two seas， variations in the circulation of the South China Sea and their interaction with Pacific waters， and circulation east of the Philippines. Since 1977， he has successfully proposed and developed 11 types of numerical models for studying ocean currents. These models produce results that are consistent with actual observations and measurements， and have been applied to various sea regions.
His achievements have been recognized at the national level， as evidenced by the numerous awards
that he has been honored with. These included the Zhejiang Province Pioneering Worker（ 1979） ， recipi-ent of government stipends from the China's State Council since 1992（ under the reward system for high-level professional and technical personnel and highly-skilled personnel） ， SOA Award for Scientific and Technological Progress （lst class）（ 1995） ， National Scientific and Technological Progress Award （2nd class）（ 1996） ， SOA Award for Scientific and Technological Progress （2nd class）（ 1996） ， selection as a top-tier marine scientific researcher under the inaugural "SOA 200 Talents" project（ 1997） ， and SOA Award for Achievements in Marine Innovation（ 2nd class）（ 2005）. He was also previously appointed the Chinese National Committee Member for the International Union of Geodesy and Geophysics（ IUGG） and member of the Pacific-Asian Marginal Seas（ PAMS） Steering Committee over various periods from 1991 to 2013.
Despite being almost eighty-two years of age， Professor Yuan remains enthusiastic and passionate a-bout his work， and continues collaborating with his students and colleagues as he strives for greater suc-cess at his research endeavors. He was chairperson for the 12th Pacific-Asian Marginal Seas（ PAMS）Meeting/JECCSS Workshop held in Hangzhou， China during November 2003. He was also appointedchairperson for the 17th PAMS Meeting held in Hangzhou， China in April 2013. Next， at the 18th PAMS Meeting held in Naha， Japan in April 2015， he presided over Session 3 titled " Circulation in the South China Sea and its interaction with the neighboring waters，" and was subsequently invited to submit are-port for the session.
When asked to share some advice， Professor Yuan remarked， "In order to see through fame and for-tune and remained unmoved by glory and shame， one must be magnanimous to others， be open-minded and receptive to new ideas， be free of distractions， and hold onto one's natural self. Only then can one ac-commodate all people and things while maintaining a joyful spirit."
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