To support the development of scenario modelling across OPTAIN case studies, an initial cross-analysis was carried out to assess the feasibility of integrating each type of Natural Water Retention Measure (NWRM) into the hydrological models used in the 14 pilot sites. The table below presents the results of this preliminary screening, based on two combined criteria: the local relevance of the measure in relation to identified challenges, and the completeness of available data required for accurate modelling.
Each measure-site combination is assigned a feasibility score ranging from 0% (either due to a lack of data or because the measure is irrelevant in the local context) to 100% (meaning sufficient data is available to support full integration into modelling scenarios).
This cross-tabulation not only highlights the measures that can realistically be implemented in each case study, but also provides an initial overview of which measures are the most or least data-demanding across the project. Some interventions—such as the restoration of natural groundwater infiltration or forest riparian buffers, appear widely feasible. Others, like the reconnection of seasonal streams or field-scale agricultural practices such as mulching or traditional terracing face more significant data or modelling constraints.
The table thus serves as a decision-support tool for selecting the most appropriate measures for scenario development, while also identifying discrepancies in data availability across case studies. It helps guide additional data collection efforts and, where needed, encourages adaptations in modelling ambitions to align with local limitations.