Editing A12. Modular River Survey (MoRPh, RCA) (section)

==7. Data analysis==
The Modular River Survey Information System is organised into workspaces (currently there are approximately 300 active workspaces). All trained surveyors are provided with a log-in to the relevant workspace(s) so that they can upload, download, query and map any of the survey data to which they have access. MoRPh surveyors have access to an open Citizen Science workspace and to approved surveys in other ‘open’ workspaces managed by various organisations. Currently the MoRPh Citizen Science database and related ‘open’ workspaces contain approximately 6000 surveys, mainly distributed across the United Kingdom and the Republic of Ireland. RCA surveyors have access to a private workspace that is only accessible within their organisation.

Raw survey data and photographs can all be downloaded for analysis from the workspaces. In addition, the Modular River Survey Information System generates a set of 14 summary indicators of the character and ‘quality’ of each surveyed module that can be mapped and downloaded for analysis. To generate data for specific applications, modules can be surveyed wherever they are needed and in the quantities needed to suit a range of applications. However, MoRPh and RCA methods offer specific options to generate additional insights beyond those associated with a single module survey.

MoRPh surveyors have the option of conducting a MoRPh10 survey, where the Information System extracts a set of 16 integrated indicators from 10 contiguous (end-to-end) MoRPh module surveys. These can be used to summarise the character of a 100 to 400 m long MoRPh10 subreach and to track changes through time from repeat surveys.

RCA surveyors conduct MoRPh5 surveys (5 end-to-end MoRPh modules), from which the Modular River Survey Information System extracts 32 Condition Indicator scores. 19 positive indicator scores quantify the diversity and abundance of a range of ‘natural’ properties of a 50 to 250 m long MoRPh5 subreach, whereas 13 negative indicator scores quantify the nature, severity and abundance of a range of human interventions and pressures. The 32 indicator scores give an overall impression of the condition of the subreach. They are combined to produce an integrated ‘Preliminary Condition Score’ for the subreach, which is then linked to the relevant hydromorphological River Type to assign a ‘Final Condition’ of Good, Fairly Good, Moderate, Fairly Poor or Poor to the subreach. Recently, an additional stage has been incorporated into the assessment whereby the Final Condition is reduced by one class if the channel is assessed to be overdeep and thus hydrologically disconnected as a legacy of human interventions.