Figure 3
(a) The drainage divide profile of Siang-Dibang divide has wind gap and is ~1000 m lower than Dibang-Lohit divide. The 2D-schematic illustration showing maximum and minimum eroded volume derived at 3k knickpoint from channel profile using Norton et al., 2008 methodology. (b) Correlation of observed and modeled knickpoint distances from mountain front using Celerity model (Crosby & Whipple, 2006; SM1b). The inverted red triangles represent knickpoints in low relief Db-7.2 sub-catchment suggesting their cogenetic origin. (c) Comparative horizontal knickpoint retreat rates derived from celerity model and eroded volume methods. Note the elevated low relief region follows the general trend but show faster retreat.
