Extended Data Fig. 8: Terminus-position data densification.
From: Ubiquitous acceleration in Greenland Ice Sheet calving from 1985 to 2022
An example of the terminus-position data we use is shown as 260 blue-to-yellow coloured dots. Raw terminus-position data are not necessarily distributed as continuous line segments from one side of a glacier terminus to the other, as seen by the blue dots that start near the top and then continue at the bottom of the image above. We sort and densify all terminus-position data and then use a flow model to determine whether any given point lies upstream or downstream of the observed terminus position (Methods). Map created with Arctic Mapping Tools for MATLAB54 with terminus position from the TermPicks dataset61.
