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1 In the paper “Feedback between bed load and flow resistance in gravel and cobble bed rivers” by A. Recking et al. (Water Resources Research, 44, W05412, doi:10.1029/2007WR006219, 2008), in section 5.1, paragraph 41, “increasing relative depth” should have been indicated. Corrected text appears here: The most interesting result that should be considered here is that the turbulence intensity of the roughness layer was observed to increase with increasing relative depth Bayazit, 1976; Wang et al., 1993; Dittrich and Koll, 1997; Carollo et al., 2005; Tsujimoto, 1991. This can be explained because the wake's frequency and size depend on the mean flow velocity Nowell and Church, 1979, which is increased with increasing relative depth, and are controlled in the upper part by the turbulent mixing of the logarithmic zone O'Loughlin and Annambhotla, 1969, whose importance is also assumed to decrease with decreasing relative depth Nikora et al., 2001.
Recking et al. (Fri,) studied this question.