Climate's influence on topography encoded in stream network topology and geometry

Related Publication: Li, M., Seybold, H., Fu, X. et al. Climate’s influence on topography encoded in stream network topology and geometry. Nat Commun 17, 3426 (2026). https://doi.org/10.1038/s41467-026-70200-0 Below is a summary of each file and its contents of the datasets: 1. hex10000.gpkg Hexagon-averaged values for spatial analysis. Fields include: (a) log[AI]: logarithm of climatic aridity index (b) Slope: channel slope (c) SR: slope ratio (d) Tk_c: Tokunaga parameter c (e) GRID_ID: Unique ID of each hexagon 2. Network_attributes.csv Network-averaged values for 5th-order river networks. Fields include: (a) outletNHDid: Network ID (b) Tk_c: Tokunaga parameter c (c) AI: climatic aridity defined as precipitation/potential evapotranspiration (d) log[AI]: logarithm of AI (e) Slope: channel slope (f) SR: slope ratio (g) Branching: branching angles (h) Sidebranch: side-branching angles (i) Bifurcation: bifurcation angles 3. Classified_angles_vs_Tk_c.csv Network-averaged angle data classified by type. Fields include: (a) outletNHDid: Network ID (b) angle_type: type of angle (sidebranch or bifurcation) (c) angle: network-averaged angle (d) meanSlope: mean channel slope of bifurcations or side-branching junctions (e) meanAI: mean AI at bifurcations or side-branching junctions (f) Tk_c: Tokunaga parameter c 4. basin_aveDeltaHS_junction_l5.csv Fields include: (a) outletNHDid: Network ID (b) deltaHS: all unique values of difference in Horton-Strahler order between pairs of incoming tributaries (c) mean_SR: basin-averaged mean slope ratios for each deltaHS class 5.JunctionAngles.csvFields include: (a) FromNode: junction ID (b) NHDPlusID1, NHDPlusID2: NHDPlusID of the most downstream flowlines of the two merging streams (c) SegmentID1, SegmentID2: Segment ID the two merging streams (d) Strahler1, Strahler2: Horton-Strahler order of the two merging streams (e) Cslope1, Cslope2: channel slope of the two merging streams (f) SR: slope ratio (g) angle: branching angles formed by two incoming tributaries at each junction (h) junx, juny: coordinates of the junction (i) deltaHS: Horton-Strahler order differences at each junction 6.NHDhrNetworks_VAAtable.csv Attributes for flowlines in 5th-order stream networks used in the main analysis