Pearn P. Niiler

Pearn "Peter" Niiler (1937, Tartu, Estonia, died October 15, 2010, San Diego) was an American oceanographer.

In 1948, Niiler, his six siblings and parents arrived in Pittsburgh from a displaced persons camp in Germany where they had lived after fleeing Estonia during World War II. His father, Herbert Niiler, coached the Estonia national basketball team at the 1936 Olympic Games and later ran a YMCA camp near Zelienople, Pa. Peter Niiler studied engineering at Lehigh University and graduated in 1960. In 1964 he received doctorate from Brown University where he studied applied mathematics and fluid mechanics. He was a Fulbright fellow at Cambridge University and postdoctoral fellow at Harvard. In 1966, he joined Nova University where he studied the Florida Current and the Gulf Stream. He became professor of oceanography at Oregon State University in 1974. He became professor at the Scripps Institution of Oceanography in 1982 where he worked in the Physical Oceanography Research Division. He was a Scripps Distinguished Professor.

Niiler designed ocean drifters for measuring direct circulation flow and other instruments for ocean observations. He was the scientific father of the Global Drifter Program and one of the persons responsible for organizing a Boulder, Colorado, meeting in 1982 which initiated the program itself. One of his more clever designs was an ocean drifting measurement device he called the holey sock

Beginning in 2002, Niiler became involved in tropical hurricane research and his group deployed the first groups of thermistor chain drifters before approaching hurricanes. His final field project was related to tropical hurricanes influence on ocean mixing in the Western Pacific. The project was ongoing when he died, and he coordinated deployment of the thermistor chain drifters of his design during that project. His thermistor chain drifters sampled Typhoon Fanapi in September 2010. Niiler was particularly interested in typhoon cold wake to study relaxation of the mixed layer temperature after cyclone passage.

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