The RAT methodology has been modified by the NIEA to meet more practical application requirements and has been re-named as the River Hydromorphology Assessment Technique (RHAT); taking account of the River Habitat Survey (RHS) methodology developed by the UK Environment Agency. The RHAT methodology is a useful tool to assess the departure of hydromorphological features from ‘naturalness’ and allows for the assignment of a morphological classification directly related to WFD status.

For more information please see the ‘RHAT Surveys‘ section on our main website.

Also, please do not hesitate to contact us.

Dr. Will O’Connor is a Senior Ecologist who has over 25 year’s professional experience. He is a graduate of the University of Wales, Cardiff, and the National University of Ireland, Galway. He is a Fellow of the Royal Society of Biology, and a full member of both the Chartered Institute of Ecology and Environmental Management and the Institute of Fisheries Management. He is a Chartered Environmentalist and a Chartered Biologist.

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