“…1) are the largest rivers in North America and Asia, respectively. Their geological and hydrological conditions and geomorphological evolution have previously been reported for the Mississippi River (Meade et al, 1995;Colman et al, 1998;Roberts, 1998;Day et al, 2007;Bianchi & Allison, 2009;Blum & Roberts, 2009;Horowitz, 2009;Meade & Moody, 2010;Allison et al, 2012) and the Yangtze River (Chen et al, 2001;Yang et al, 2002;Xu et al, 2006;Yang et al, 2006;Xu & Milliman, 2009;Yang et al, 2011). However, only a few papers have directly compared these two rivers (Xu et al, 2007;Bianchi & Allison, 2009).…”