Data for: Tree-ring stable isotopes reveal a common temperature signal in marine and terrestrial ecosystems of the British Isles

Tree-ring width (.rwl) files and tree-ring stable isotope data (.xlsx) for three oak woodlands in the west of britain (PC, HH, TN). Tree-ring width files include all series, stable isotope data includes only those from each of the five trees at each site selected for stable isotope analysis. Stable isotope data presented in raw (uncorrected) and suess-corrected format.