Fig. 2: Transfer functions for the estimation of the local warmest daytime temperature (tx01).
From: The increasing likelihood of temperatures above 30 to 40 °C in the United Kingdom
An example for a grid-box in London. a Local observations of tx01 plotted against the UK mean observed values (crosses). A linear fit to the data (red line) represents the transfer function for the grid-box. b Inclusion of the confidence bounds for the response variable (orange lines) leads to a set of a 100 transfer functions in total. c A bootstrapping procedure applied to the observed data (crosses) provides alternative transfer functions (grey lines), used to assess the effect of sampling uncertainty. For each of the grey lines, a set of 100 transfer functions can be obtained as shown in panel b. d Observed tx01 data from a station within the reference grid-box agree well with the HadUK-Grid data.
