“…The scaling between fjord width and drainage area (or ice discharge) varies with lithology, with broader valleys associated with softer rocks (i.e., sedimentary rocks); consistent with previous observations (Swift et al., 2008). The influence of lithology on fjord morphology has also been described for a variety of lithologies in West Greenland (Lane et al., 2016), Iceland (Brook et al., 2004), Scotland (Brook et al., 2004; Krabbendam & Glasser, 2011), New‐Zealand (Augustinus, 1992a), Norway (Nesje & Whillans, 1994), and Patagonia (Glasser & Ghiglione, 2009), thus supporting our results. To test whether our results strongly depend on the reference elevation, we performed the same morphological analyses but considering sea‐level as an absolute reference elevation from where to measure fjord width and depth following Augustinus (1992b).…”