A simplified tool for managing hydromorphological change in transitional and coastal waters


Improving the TraC-MImAS tool

Firth of Forth coastal water under the Forth rail bridgeThe TraC-MImAS tool is a simple risk based regulatory decision-support tool. The tool helps regulators identify those proposals that could threaten the aim of achieving ‘good ecological status or result in a deterioration in ecological status resulting from changes in hydromorphology'.

A new Sniffer report looks at ways to simplify and develop the tool. It analyses and makes recommendations for pressure categories, pressure impact ratings, impact ratings for important habitats and considers how the tool assesses structures with significant impact potential but a small footprint.

Under the Water framework Directive (WFD), the UK and Ireland are now required to manage hydromorphological change in transitional and coastal waters.  The tool is used by SEPA to guide the hydromorphology classification for the Scotland and Solway Tweed River Basin Management Plans, and by Marine Scotland to identify development proposals that could threaten WFD objectives.

Read more about the project
Download the report summary
Download the report

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