Thomas M. (Zack) Powell has been a practicing oceanographer and aquatic ecologist for more than forty-five years, working in lakes, estuaries, and the ocean. Powell’s investigations have collected information with field measurements in environments including nearshore/intertidal systems, the California Current, and estuaries like the San Francisco Bay. Powell has also studied the impact of climate and the construction of mathematical, statistical, and numerical models of coupled physical transport and ecological interactions in the ocean.
Powell chaired the interdisciplinary Energy and Resources Group (ERG) and the Department of Integrative Biology at the University of California, Berkeley. For six years he was Chair of the Scientific Steering Committee of U.S. GLOBEC (a project addressing the effect of global climate change on ocean ecosystems).