Minimal corrected dataset and code for “Spatial aggregation attenuates tributary-scale hydroclimatic signals: Evidence from ERA5-Land diagnostics in the Dongting Lake Basin, China"

It recalculates the reported statistical results and reproduces the non-geographic Figures 2–5. Locked expected outputs are read only after the new calculations and are used solely for verification; they are not used as substitutes for statistical computation. SVG, PDF, and PNG figure exports are retained in the archive.

Redundant TIFF copies are omitted to keep the repository upload below the online file-scanning threshold; the plotting workflow regenerates all six TIFF exports when needed, and the main-figure TIFF files are submitted separately to PLOS ONE.<br><br>Third-party raw files are not redistributed. The original ERA5-Land NetCDF files were obtained from the Copernicus Climate Change Service Climate Data Store (doi.org/10.24381/cds.e2161bac).

HydroBASINS version 1c source polygons used to define the original analytical units and spatial weights are available from HydroSHEDS (hydrosheds.org/products/hydrobasins) under the provider's terms.<br><br>BasinATLAS version 1.0/HydroATLAS, licensed under CC BY 4.0 (doi.org/10.6084/m9.figshare.9890531.v1), was used only to regenerate the revised Figure 1. The revised map displays the Xiang, Zi, Yuan, and Li tributary regions and does not display the lake/interbasin geometric residual.

The residual remains included in the original whole-basin analysis. BasinATLAS did not replace the HydroBASINS analytical masks or spatial weights, and no statistical result was changed. HydroBASINS and BasinATLAS polygon geometry is not redistributed in this archive.<br><br>No GRDC discharge time series were used.

GRDC station-catalogue metadata were consulted only for source auditing. The ERA5-Land variables remain reanalysis/model outputs and are not presented as observations, routed discharge, or a complete basin water balance.<br><br>This version supersedes the preceding Figshare data package for the purpose of reproducing the revised manuscript. Earlier public versions remain accessible through the Figshare version history.<br></pre></pre></pre><p></p>