Introduction ============ Cabernet2D is pronounced like the French grape variety "Cabernet Sauvignon," but the name is actually an acronym for "Comprehensive Aquatic Basin Evaluation Tool." Built on Nays2DH, iRIC's representative 2D open-channel flow solver, Cabernet2D is a comprehensive river network analysis tool that adds flow and bed variation calculation for channel networks with multiple confluences and bifurcations, a vegetation growth/loss model, and the basic functionality of the GELATO material-transport model. .. figure:: iric.jpg :width: 100pt :align: center :target: https://i-ric.org/ .. figure:: yasu.png :width: 100pt :align: center :target: https://i-ric.org/yasu/ September 14, 2024 `Yasuyuki Shimizu `_