Overview of the MHD simulation snapshot from Martínez-Sykora et al. (2017b) showing a 2D slice of temperature (top row) and signed vertical velocity v_z (bottom row) at t = 190 s from the start. The spicules appear as cool finger-like intrusions in the hot corona, and the ones that are further analyzed are numbered 1 and 2. Velocities away from the observer are indicated in red (positive) and toward the observer in blue (negative). The contour indicates the location where the temperature equals 30 kK. The region to left of the dashed vertical line in the bottom row indicates the region of interest that is further studied in Sect. 5.3. An animation of this figure is available online.