RDE323 - Assessment of the naturalness of different river types

Tender description

To overlay the geodatabase on naturalness scores and the geodatabase of river/stream types and provide an assessment of naturalness for the river types identified below. Naturalness attributes need to be aggregated on a one-out-all-out basis as opposed to the averaging method used for B6 outputs. For each of the river types identified below please provide the following: i. The percentage of the river/stream types that achieve the naturalness attributes. ii. The percentage of the rivers/streams that fail on specific attributes, for example x% fail on water quality. iii. The percentage of rivers/streams that fail on one attribute, two attributes, three attributes etc. Contract awarded by Natural England.