Research data and code for spatial decoupling between drainage-divide competition and longitudinal channel disequilibrium in Serra do Teixeira, Borborema Plateau, northeastern Brazil

This dataset and code archive supports the manuscript “Spatial decoupling between drainage-divide competition and longitudinal channel disequilibrium in Serra do Teixeira, Borborema Plateau, northeastern Brazil”. It contains the 909.4 km² geomorphological domain of Serra do Teixeira, summaries of alternative candidate domains used to assess boundary uncertainty, longitudinal-channel and χ–ksn outputs, knickpoint and SL analyses, cross-divide metrics, catchment-dependence sensitivity tests, mapped-headwater correspondence results, eligible-domain Monte Carlo analyses, and repository-ready Python scripts. The deposited products support the interpretation that longitudinal channel disequilibrium and drainage-divide competition are individually robust but spatially decoupled at the tested scale, while lithological inheritance provides an important relief template. Raw third-party datasets from Copernicus, AESA, APAC and geological sources are not relicensed in this repository; their provenance and use are documented in the README.