Although the increasing use of the NbS, the hydro-morphological response of river systems to these measures has not been fully addressed, and it is at the first stages in tropical environments. Considering the differences in sediment loads and the pace of post-disturbance adjustments, tropical rivers' environmental and morphological responses to nature-based hydraulic structures may have different magnitudes than those observed in other regions. Improving our understanding of the hydromorphological effects of nature-based hydraulic structures in tropical environments is crucial to enhance the resilience to hydrometeorological extremes of these regions, while also gaining numerous environmental, social, and economic benefits. Adapting nature-based hydraulic structures that include vegetation to tropical river systems requires the proper representation of vegetation in the modelling approaches of the structure and the selection of the appropriate vegetation species for the reach scale implementation; aspects that have not been fully addressed yet.

The objective of the planned collaboration in this "Initiation of International Collaboration" is to include in the ongoing research at KIT with contributions from experts from tropical environments, towards to formulating design criteria and modelling requirements of nature-based hydraulic structures, including the effects of vegetation.

Funding: Deutsche Forschungsgemeinschaft, Projektnummer: 572588003