Professional summary

Gwyn Rees possesses over 35 years’ experience in applied hydrology and environmental informatics. As a  hydrologist, he specialises in water resources, low flows, drought and climate change impacts. His informatics experience includes systems development and environmental data management on a variety of IT platforms. He has extensive experience of formal project- and programme-management approaches, team leadership, line- and resource-management, business change management, and board-level strategic direction and decision making.

Gwyn worked at UKCEH and its predecessors from 1993, becoming a UKCEH Fellow on his retirement in June 2024. Prior to this he was Science Area Head - Water Resources (2014-24) and Director of Environmental Informatics (2009-2014). He was Head of the UK's National River Flow Archive from 2006 to 2009 and, before that, worked on many applied hydrology projects in Europe or South Asia. Before joining UKCEH, Gwyn worked for Wessex Water, where he developed databases and software applications to support the water supply and wastewater management parts of the business.

Gwyn has served, on numerous panels, boards and committees, including: the UKCEH Executive Committee; UKCEH Science Leadership Committee; DESNZ Climate Services for a Net Zero World Research Directorate; European Network of Freshwater Research Organisations Management Board; the CIWEM Water Resources Panel; the UKEOF Management Group; Dŵr Cymru Welsh Water Independent Environmental Advisory Panel; the UK National Committee for the International Association of Hydrological Sciences (IAHS); the IAHS Ltd. Board of Directors & Trustees; the WMO-GWP Integrated Drought Management Programme; and, the UK National Committee for the UNESCO-IHP. He was made an Honorary Professor at the University of Dundee in January 2024.

Selected publications