Viridian

Overview
Description: 

Viridian is an in-house tool run on a consultancy basis that shows what type of habitat to create and where to create it in order to provide nature-based solutions to local problems. It splits ecosystem services into two categories: water-flow services (flooding, water pollution, erosion and drought reduction) are modelled mathematically, and place-based services (all others such as recreation and carbon sequestration) are modelled using simple GIS data layers and rules. The output maps show how to maximise ecosystem service benefits, habitat connectivity and return on investment, in order to tackle problems such as meeting water quality targets and providing natural flood management.

Input: 

Maps / GIS data (sourced and managed by Viridian or provided by user).

Output: 
Maps
GIS databases
Tables / statistics / reports
Cost-benefit assessment
Scale: 
Local scale
Landscape scale
Regional scale
National scale
Cost of the tool (and guidance): 
Fee (consultancy service)
Context: 
A range of land uses.
Resource requirement (software): 
None - the tool is a proprietary tool provided by the developer.
Level of technical expertise required: 
None – tool is run in-house by a consultant
Types of ecosystem service included: 
Regulating
Provisioning
Cultural
Habitat type (UK NEA habitats): 
Mountains, moors and heaths
Semi-natural grasslands
Enclosed farmland
Woodland
Freshwater, wetlands and floodplains
Urban
Marine
Coastal margins
How does it work?: 

Viridian first ranks each 5 metre pixel across the study area for its current and future ability to solve water-flow problems, using a set of algorithms. It then identifies ability and opportunity values for place-based services, such as recreation and air quality.  Finally, the water-flow and place-based services are combined to show trade-offs, synergies and options for improvement. The platform provides raster map outputs that indicate where habitat creation will offer the greatest benefits in a study area, including maximising return on investment and habitat connectivity.  Local preferences can be taken into consideration – for example, flooding may be more important than diffuse pollution in some areas – as well as protected sites or species. The local analyses can be expanded to regional or national scale.

 

Where can I get it?: 

Available on a consultancy basis whereby clients can commission Viridian Logic to run the tool.