Metallicity and [Ca/Fe] as a function of the Galactocentric radius for the sample of Gaia and GES open clusters with 1 Gy < age < 3 Gy. In the upper panel, we show [M/H] (calibrated metallicity for Gaia and [Fe/H] for GES) as a function of R_GC, while in the bottom panel, we present [Ca/Fe] versus R_GC. The weighted linear fits are shown with continuous lines. The vertical line mark the location of the ELBOW. The size of the symbols is proportional of the number of member stars used to compute the mean values.