A professor at the University of Bristol, Sparks has produced many discoveries that have improved our practical understanding of volcanic hazards. His study of the 1995 eruption of the Soufrière Hills volcano on the Caribbean island of Monserrat led to a better understanding of how some eruptions can turn explosive, and he pioneered methods for assessing the dangers posed by volcanic eruptions, helping governments to improve decision-making regarding evacuations and rebuilding.
The Vetlesen Prize is given for outstanding achievement in the sciences resulting in a clearer understanding of Earth, its history, or its relation to the universe. The prize was established at Columbia University by the Vetlesen Foundation in 1959 and consists of a gold medal and a $250,000 prize.
Its namesake, Georg Unger Vetlesen, a native of Norway who emigrated to the United States, built his career around ships and the sea. He played important roles with the U.S. Navy and the Norwegian resistance during World War II, led the Norwegian American Line and helped found Scandinavian Airlines System Inc.
There was a special connection between Vetlesen and the Lamont-Doherty Earth Observatory: The Vetlesens bought the 202-foot, three-masted schooner VEMA in 1934, and the ship, acquired by Columbia in 1953, took Lamont researchers across the oceans and became one of the world’s most
productive oceanographic research vessels.