Models Applied At NAIAD

What this list is

The models on this page were already in use before the project started. They were applied in the demonstration areas, in most cases to a question they had not been applied to before, and in several cases coupled to other models with which they had not previously been combined. Listing them separately from the models the project developed is useful because it tells a reader what they can adopt today without waiting for a new tool.

The boundary between the two lists is the origin of the model rather than the amount of work done on it. Where a model was taken up and substantially adapted for the assessment of Nature Based Solutions, so that the adaptation is itself the output, it is listed under the models developed or improved by the project even though its starting point was an existing instrument.

Surface water and catchment models

Surface Hydrology Model — applied to establish the rainfall to runoff response of a catchment, and the change in that response produced by a change in land cover or in the configuration of measures.

Runoff hazard modelling — applied to establish where surface water accumulates and flows when the drainage network is exceeded, which is the hazard that most urban Nature Based Solution proposals have to address.

Water balance and allocation model — applied to establish where water goes under a range of conditions and how an intervention changes the allocation between competing uses.

Hydrological and hydraulic modelling of NBS and hybrid solutions — applied to convert a proposed configuration of measures into a change in flood extent and depth, which is the input to every damage assessment in this guide.

Groundwater models

3D Geological model of the Medina del Campo GWB — the geometric basis for the groundwater work in the aquifer demonstration, establishing the structure and properties of the formation before any flow could be simulated.

Regional Groundwater Flow Model and physical assessment of GRES — applied to establish how the water body responds to changes in recharge and abstraction over a planning horizon, coupled here to an assessment of the ecosystem services that depend on the resulting water levels.

Hydrogeological modelling of an urban river restoration — applied to an urban setting where the interaction between a watercourse, its banks and the shallow groundwater determines whether a restoration measure performs as intended.