Georg Wüst and the Motion of Water Masses

Georg Wüst is probably best known for his work on the motions of water masses between the northern and southern hemispheres. Photo: Tim Marshall

Georg Wüst is probably best known for his work on the motions of water masses between the northern and southern hemispheres. Photo: Tim Marshall

On June 15, 1890German oceanographer Georg Adolf Otto Wüst was born. Wüst’s pioneering work on the Atlantic Ocean provided a new view of the motions of water masses between the northern and southern hemispheres and the first evidence of the concentration of water mass spreading in western boundary currents. He developed the first essentially complete understanding of the physical structure and deep circulation of the Atlantic Ocean.

Georg Wüst studied geography and oceanography at the University of Berlin. He also educated himself in the field of meteorology, mathematics and physicsWüst was highly influenced by the hydrographer Alfred Merz who became the head of the Museum of Marine Sciences and later director of the Institute and Museum of Marine Sciences. He supported Georg Wüst to join the studies of Bjørn Helland-Hansen in Bergen where he gained experience in ocean observations by working on lightships, on surveying vessels and during cruises on the Norwegian research vessel “Armauer Hansen”. Merz further became Wüst’s advisor for his doctoral thesis. In it, Wüst performed systematic observations of evaporation on several vessels. He further developed specific analysis methods and discussed distribution patterns of evaporation in the world oceans.

During World War I, Georg Wüst served as meteorologist, he was wounded near Verdun in 1917. However, he continued his studies after the war and participated in Merz‘s research cruises in the North and Baltic Seas. Alfred Merz became head of a hydrographic survey of the Atlantic Ocean which was approved by the Emergency Association of German Science after World War I and Wüst was part of planning of the journey and joined the expedition 1925 to 1927. In 1925Merz died in Buenos Aires and Georg Wüst took over the expedition leadership for the observations. During this period, Wüst delivered a pioneering analysis of the large-scale distribution of Atlantic water masses and their regions of origin showed the strong role of interhemispheric exchange and provided the first evidence for the concentration of water mass spreading in western boundary currents.

In 1936, Georg Wüst was made Professor in Berlin and was able to increase his international reputation as a marine scientist. However, also Wüst was affected by the beginning of World War II and had to become a member of the NSDAP, he served as a member of the nautical-scientific staff at the Supreme Command of the Navy during the war. Back then he further taught at the Friedrich-Wilhelm-University in Berlin. After the war, Wüst was given the task to rebuild the marine research in Kiel. He further became Professor of Oceanography and Maritime Meteorology at Kiel University and Director of the Institute of Marine Science. In 1959, Georg Wüst followed an invitation to become visiting professor at the Lamont–Doherty Earth Observatory at Columbia University, New York. There, he mainly researched on the circulation in the Caribbean Sea. At the Institute of Meteorology of the University of BonnWüst later became a visiting professor until 1967.

During his research career, Georg Wüst significantly contributed to the understanding of ocean processes, in particular the property exchange, the origin of water masses and their large-scale motions and transports. Next to his pioneering work on the Atlantic OceanWüst also showed interest in the origin and spreading of deep bottom water. Georg Wüst showed that the vertical convection in the Okhotsk Sea produces water masses that provide an essential source of North Pacific Intermediate Water. He further gave an improved view on the circulation in the Caribbean Sea during his stay at Lamont.

References and Further Reading:

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