“…Width-and depth-integrated (1-D) numerical ice flow models (i.e., flowline models) have been used to simulate the dynamic behavior of narrow, fast-flowing tidewater glaciers in a number of geographic settings, including Greenland (e.g., Nick et al, 2009Nick et al, , 2012Nick et al, , 2013Vieli and Nick, 2011), Antarctica (e.g., Gladstone et al, 2012;Jamieson et al, 2012), Iceland (Nick et al, 2007a), and Alaska (Nick et al, 2007b;Colgan et al, 2012). These models simulate ice flow by balancing the gravitational driving stress with basal and lateral resistive stresses and along-flow longitudinal stress gradients.…”