Fig. 9
Cumulative distributions of the Fried parameter, r0: the straight line is obtained from the 550 summer values (June–Sept. 2011), the dashed line corresponds to the 311 winter measurements (Jan.–Feb. 2012). The circles represent the values obtained by the ATST survey (Socas-Navarro et al. 2005). All values refer to 0.55 μm wavelength.
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