Fig. 6From: Spatial gradients of geomagnetic temporal variations causing the instability of inter-station transfer functionsAmplitudes of IS-TFs of MMB (input) to KAK (output). a Standard IS-TFs based on 22 months of data. b 2-month IS-TFs. c Two-month IS-TFs derived by removing time windows including anomalous geomagnetic events. Error bars correspond to 95% confidence levelBack to article page