Canada1Water Drainage Basins Routing Adjacency Matrix

Here we provide the adjacency matrix that defines node routing for the 8-digit sub-watershed polygons within the Canada1Water model domain. The National Hydrographic Network (NHN) Working Limits and the National Hydrography Dataset (NHD) WBDHU8 provide the Canadian and U.S. data coverage, respectively. This adjacency matrix is the key for upstream and downstream sub-watershed routing. Files; C1W_NHN_NHD_routing_simplified_v2_graph_routing.zip - contains the adjaceny matrixC1W_NHN_NHD_coordinates_sf.zip - centroid vertices of the sub-waterhsed polygons C1W_NHN_NHD_routing_simplified_correctdirect.zip - edges that connect the watersehds with correct geometry direction pointing downstreamC1W_NHN_NHD_coordinates_sf_leaf_coords.zip - headwater tributary nodes in the routing networkC1W_NHN_NHD_coordinates_sf_mouth_coords.zip - terminal sub-watershed nodes either at the coastline or Endorheic basins Additional Files;C1W_ModelBoundaries_subWatersheds.zip - NHN and NHD subwatershed polygonsKessel, E. D., Frey, S. K., & Russell, H. A. J. (2025). Canada1Water Model Boundaries, Drainage Basins and a High-Resolution Coastline (1.0) [Data set]. Canada1Water. https://doi.org/10.5281/zenodo.17807640