Table 1.

Variability index Cup-Clo for Hm at (a) El Arenosillo, (b) Ebro and (c) Pruhonice, during different seasonal and solar-activity conditions, as indicated in each block.
Variability index Cup-Clo for Hm at (a) El Arenosillo, (b) Ebro and (c) Pruhonice, during different seasonal and solar-activity conditions, as indicated in each block.