Table 1 summarizes the characteristics of the database.
Table 1: Auxiliary database description.
The database consists of the following ﬁles:
 J.Garicano-Mena,B.Li, E.Ferrer, and E.Valero. A composite dynamic mode decomposition analysis of turbulent channel ﬂows. Physics of Fluids, 31(11):115102, 2019.
 P.Luchini and M.Quadrio. A low -cost parallel implementation of direct numerical simulation of wall turbulence. J. Comput. Phys., 211(2):551–571, January 2006.
 J. Kim, P. Moin, and R. Moser. Turbulence statistics in fully developed channel ﬂow at low Reynolds number. J. Fluid Mech., 177:133–166, 1987.