20 Sep SIGA-CAL v1.0: Nature-based Solution modeling tool






Nature-Based Solutions (NbS) are part of the strategies to address the challenges inherent in water security and comprehensive water resource management in river basins. Designing intervention portfolios based on NbS involves addressing questions such as what type of NbS to implement (passive restoration, nucleation, enrichment, etc.), where to implement them, and to what extent, in order to achieve the greatest effects within a framework of cost-effectiveness.
Since the expected effects behind the implementation of NbS take time to manifest or be identified through strategies based solely on monitoring, configuring hydrological, sedimentological, and water quality models prove useful for evaluating the potential response of river basins to their implementation. This allows for the definition of potential intervention portfolios according to the type of vegetation cover, the identification of priority areas of interest that contribute significantly to the expected change pathway, and the assessment of strategic indicators regarding water quality and quantity.
Video credits: The Nature Conservancy
SIGA-CAL v1.0 (Open Geoscientific Simulation) is a distributed simulation tool with daily time step to represent hydrological, sedimentological, and water quality processes in river basins, developed by GOTTA Engineering and The Nature Conservancy to support decision-making by Water Funds, Environmental Authorities, and Private Companies and for the design of interventions supported by NbS as part of the intervention programs in basins specific to each entity