About Us

Hydro-GIS staff have over 50 years experience in hydrology and water resources, and have worked for national and international governmental organisations, research institutes, academia and the private water and environment sector. We have established a network of associated consultants(please see the useful links page).


Dr Harvey Rodda BSc PhD FRGS, is a director of Hydro-GIS Ltd with over 15 years postgraduate experience in research and consultancy in the public and private sectors in the UK and overseas. He graduated in Environmental Science from Lancaster University and completed his PhD in the Department of Geography, Exeter University in 1993. While working at NIWA in New Zealand from 1994-98, Harvey developed hydrology and water quality models and pioneered the application of GIS for hydrological modelling in New Zealand. Back in the UK, he worked on the development of a UK flood risk model for use in the insurance sector. As a principal hydrologist for a firm of consulting engineers, he led a number of flood related projects including Section 105 flood risk mapping for the Environment Agency, the development of flood risk models for the Czech and Slovak Republics, flood risk assessments, and specialist hydrology and water quality modelling studies.

Alex Mitchell BSc, Alex completed a degree in geology and Cardiff University in 2016 and has specialised in field geology and geological mapping. He started working at Hydro-GIS Ltd in September 2017 contributing a wider range of skills to fieldwork and site specific studies.

Sabine Rodda MSc, is a director of Hydro-GIS Ltd. With a degree in business studies and an MSc in Physical Geography (Freiburg University, Germany), Sabine’s responsibilities include business development, marketing and web development.

Laura Vecera BSc, Laura has a degree in Environmental Sciences from Freiburg University, Germany and is currently studying for a MSc in Hydrology also at Freiburg. Laura started working at Hydro-GIS Ltd in August 2016 as an intern student and is now continuing as a part time GIS technician.

Professor John Rodda DSc, FRMet Soc, FRGS, MCIWEM, is an Associate Director of Hydro-GIS Ltd. He was previously director of the Hydrology and Water Resources Department of the World Meteorological Organization in Geneva for 8 years, from 1988-1995. He has worked in both the research and water arms of central government and in research at the former Institute of Hydrology where he was Assistant Director. As well as being President of the International Association of Hydrological Sciences from 1995 to 2001, he has been a consultant to the UN World Water Assessment programme, to UNESCO, the European Union, DFID, and NERC, mainly in the fields of world water resources, water governance and the appraisal of programmes. He published some 80 scientific papers and 6 books concerned with Hydrology and water resources, 2 being translated into Russian.