Figure 2

Observed 2m air temperatures and reference estimates as in Fig. 1, but with estimates obtained from unweighted averages over a number of ‘similar’ days and local linear and quadratic regression (a type of smoothing).
Observed 2m air temperatures and reference estimates as in Fig. 1, but with estimates obtained from unweighted averages over a number of ‘similar’ days and local linear and quadratic regression (a type of smoothing).