Fig. 13

Reduction in standard deviation RSm as performance indicator for various site proxies (different curves) for RP–RF (a, top), NP–RF (b, middle), and TP–RF (c, bottom)
Reduction in standard deviation RSm as performance indicator for various site proxies (different curves) for RP–RF (a, top), NP–RF (b, middle), and TP–RF (c, bottom)