
Photo: Courtesy of Barry Dooley--Prof. Macdonald receiving the Gibbs Award from IAPWS President Petrova (2013, Greenwich).
A tribute to the late Digby Macdonald has now been posted under the "About Us" "Tributes" pages of this site. Prof. Macdonald was an IAPWS Gibbs Award winner among his many honors. He had contributed considerably to the Power Cycle Chemistry Working Group and the broader technical community interested in aqueous solutions at high temperature and pressure. The tribute was prepared by colleagues Peter Tremaine, Rajeev Gupta, Barry Dooley, and David Shoesmith. Tribute to Prof. Digby Macdonald (1943 - 2025)