Allan Devol is an oceanographer who studies the chemistry of low oxygen and anoxic marine environments. His fieldwork has taken him from the Arctic to the eastern tropical Pacific and to Arabian Sea, with work also in the Amazon River He has participated in about 50 research expeditions and served as Chief Scientist on nearly half of them. He also works closer to home, in Hood Canal, studying the causes of that water body’s low oxygen levels. For Hood Canal, and Puget Sound more widely, he developed the Oceanic Remote Chemical Analyzer (ORCA) autonomous buoys that, since deployment a decade ago, have provided a near-constant stream of water quality data. In recognition for his contributions to marine biogeochemistry, he has been named a Fellow of the American Geophysical Union.