in the two parts of the study. In the extremes analysis using raw model output, the dates of
passing GWLs were deﬁned on the basis of the global mean temperatures in the driving CMIP5
models relative to those models’ simulations of global mean temperature in 1870–1899 (table 3).
However, in the HCVI and JULES analyses which used bias-corrected data, it was considered
more appropriate for the GWLs to be deﬁned using the warming in the observational dataset