Fig. 3: Updated subglacial lake boundaries over David 2 and Institute E1 subglacial lakes.
From: Detection of 85 new active subglacial lakes in Antarctica from a decade of CryoSat-2 data
a Surface elevation change from mid-2010 to mid-2020 over David 2 subglacial lake. The boundary delineated from the 2012 to late-2019 uplift event (black line) is shown alongside the corresponding gridded surface elevation change data in the background. The boundary delineated from the ICESat data10 is also illustrated (dashed grey line). b CryoSat-2 surface elevation change data from early-2017 to mid-2020 over the Institute E1 subglacial lake. The boundary delineated from this 2017—2020 surface subsidence event (dashed black line) is shown alongside boundaries from a previous period of surface uplift (early-2014 to late-2018) (solid black lines), and the subglacial lake boundary from the ICESat data10 (dashed grey line). The boundary of a smaller but distinct subglacial lake, named Institute_142 in our study, is located to the South of Institute E1, with boundaries for the 2017—2020 (dashed purple line) and 2014 to 2018 (solid purple line) events also shown. The North direction is indicated in both maps by the grey arrow.
