Content
The OPTAIN project relies on a set of analytical, modelling and optimisation tools designed to evaluate Natural Small Water Retention Measures (NSWRM) within calibrated catchment environments. These tools support the structured assessment of alternative measure portfolios under current and projected climate conditions. They are intended for simulation-based analysis and decision-support, and do not constitute implementation or monitoring instruments.
At the core of the framework are process-based predictive models that simulate hydrological processes and nutrient transport at field and catchment scale. These models translate management decisions and spatial allocation of measures into quantitative performance indicators, including water retention efficiency, nutrient retention efficiency, agricultural productivity and cost-related metrics.
Complementing the modelling framework, OPTAIN applies multi-objective optimisation methods to explore trade-offs between competing objectives and to identify Pareto-optimal portfolios. This enables systematic comparison of alternative NSWRM configurations rather than the identification of a single optimal solution.
In addition to modelling and optimisation tools, the project provides supporting analytical resources such as:
-
The NSWRM catalogue, which documents measure characteristics and parameterisation options
-
Visualisation and trade-off exploration tools (e.g., Pareto-based interfaces)
-
The Learning Environment, which facilitates knowledge transfer and interpretation of simulation results
Together, these tools form an integrated analytical ecosystem that supports evidence-based evaluation of NSWRM strategies within simulated environments, ensuring transparency of assumptions and comparability across biogeographical regions.