Fig. 2: Study area overview and glacier catchments.
From: Hydroclimate intensification likely aided glacier survival on Svalbard in the Early Holocene

a Surface and sub-glacial topography map of the study area generated using data from Farinotti et al.90, Fürst et al.105 and Porter et al.106. Sub-glacial catchments of lakes Berglivatnet and Lakssjøen are marked with green and purple outlines, respectively. The present-day ice margin is marked with a white line after Pfeffer et al.129, while the extended ice margin from 1936 CE is marked with a white dashed line after Luncke32 and the predicted ice margin for 2100 CE for Representative Concentration Pathway (RCP) 8.5 after Rounce et al.31 is marked with a red dashed line. Major bedrock boundaries are marked with black and dashed lines after Dallman 47. Other lakes present in the wider study area are labelled with light blue (F1 – Fiskedammane 1, F3 – Fiskedammane 3). Lake outlines from © Norwegian Polar Institute b Unmanned Aerial Vehicle (UAV) photo of Lake Berglivatnet, taken during an August 2021 field campaign with a DJI Mavic 3, facing Berglibreen (photo by W.G.M. van der Bilt). c UAV photo, taken during the same field campaign, of the northern basin of Lake Lakssjøen and the shallow sill that separates it from Lake Røyesjøen towards the upper left (photo by W.G.M. van der Bilt).