Instructions for calculating hydromorphological indices values using River Habitat Survey data. A series of 6 indices representing habitat dimensions were derived using River Habitat Survey spot- check data and a multi-variate statistical analysis called...
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Instructions for calculating hydromorphological indices values using River Habitat Survey data. A series of 6 indices representing habitat dimensions were derived using River Habitat Survey spot- check data and a multi-variate statistical analysis called Correspondence Analysis. The indices represent channel substrate size, flow regime, channel vegetation structure, geomorphic activity and bank vegetation. Index values are calculated using a simple equation applied to feature occurrence (e.g. substrate types) from RHS spot-check data. Calculation can be performed using the RHS toolbox software.
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