Data and code for: Validation on its own gauges overstates how well interpolated rainfall detects extremes: a five-year test against 463 independent mountain gauges

Derived data and Python code that reproduce the numbers in Sections 2 and 3, Table 1, Figures 1–7 and the supplementary figures of the manuscript "Validation on its own gauges overstates how well interpolated rainfall detects extremes: a five-year test against 463 independent mountain gauges" (submitted to Hydrological Sciences Journal). Run pip install -r requirements.txt and python run.py. expected_run.log is the reference output.