Keith Andrew Hunter (1951-2018) was a New Zealand ocean chemist who served most recently as a professor of chemistry and Pro-Vice-Chancellor, Sciences, at the University of Otago, Dunedin, New Zealand. He was educated at Auckland Grammar School, graduated from the University of Auckland with a first-class degree in chemistry in 1974, and completed his Ph.D. at the University of East Anglia in 1977 working with Peter Liss. He joined the University of Otago in 1979 and is a former president of the New Zealand Institute of Chemistry. He was awarded the Prime Minister’s Science Prize in 2011 and the Marsden Medal in 2014, and was elected a Fellow of the Royal Society of New Zealand in 1997. Keith was a pioneer in trace element biogeochemical research in New Zealand. His research interests were wide-ranging, including dissolved trace metal speciation and cycling (with a major emphasis on Fe biogeochemistry), effects of ocean acidification on trace element speciation, estuarine behavior of particles and colloids, atmospheric deposition of trace elements and nutrients, and the chemistry of the sea-surface microlayer. His work will continue to have a significant influence on many areas of chemical oceanography, and he will be sorely missed by his many friends and scientific colleagues.
William M. Landing
Professor, Earth Ocean and Atmospheric Science, Florida State University