@article{ad2d4a6d2afa4f7bbd7ba5a761a987dc,
title = "Ice-marginal proglacial lakes across Greenland: Present status and a possible future",
abstract = "Ice-marginal lakes can affect glacier dynamics but are ignored in studies of the evolution of the Greenland ice sheet (GrIS) and of peripheral mountain glaciers and ice caps (PGICs). Here we show that lakes occupy 10% of the GrIS ice margin and occur on 5% of PGICs. Ice velocity at the GrIS margin is enhanced by ∼ 25% at lakes versus on land. Mean ice discharge into lakes is ∼4.9 Gt.yr, which is ∼1% of ice discharged through marine termini. We locate thousands of subglacial overdeepenings within which 7,404 km2 of future lakes could form, all of which will be ice-marginal at some time. Future lakes in the west and east will be restricted to the margin of the GrIS and within alpine valleys, respectively. This status and possible future leads us to contend that lakes should be incorporated into projections of Greenland ice loss.",
keywords = "glacier, Greenland, ice sheet, lake, meltwater, proglacial",
author = "Carrivick, {Jonathan L.} and Penelope How and Lea, {James M.} and Sutherland, {Jenna L.} and Michael Grimes and Tweed, {Fiona S.} and Stephen Cornford and Quincey, {Duncan J.} and Joseph Mallalieu",
note = "Funding Information: The Greenland ice‐marginal lake inventory was funded by the European Space Agency (ESA; 4000109873/14‐I‐NB) Glaciers Climate Change Initiative Phase 2, Option 6, titled “An Inventory of Ice‐Marginal Lakes in Greenland.” PH is funded under an ESA Living Planet Fellowship (4000136382/21/I‐DT‐lr) that continues this work, entitled {\textquoteleft}Examining Greenland's Ice Marginal Lakes under a Changing Climate{\textquoteright}. Additional thanks to the researchers at Asiaq Greenland Survey for their continued involvement in the ice‐marginal lake classification processing and analysis. MG was in receipt of Natural Environment Research Council Doctoral Training Partnership award NE/L002574/1 whilst completing work for this study. Heiko Goelzer is thanked for sharing the ensemble mean ice thickness change grid from the ISMIP6 study. Victoria Lee and Morlighem et al. (via NSIDC) are both thanked for (separately) sharing BedMachine datasets. Two anonymous reviewers are thanked for their helpful comments that improved this manuscript. Funding Information: The Greenland ice-marginal lake inventory was funded by the European Space Agency (ESA; 4000109873/14-I-NB) Glaciers Climate Change Initiative Phase 2, Option 6, titled “An Inventory of Ice-Marginal Lakes in Greenland.” PH is funded under an ESA Living Planet Fellowship (4000136382/21/I-DT-lr) that continues this work, entitled {\textquoteleft}Examining Greenland's Ice Marginal Lakes under a Changing Climate{\textquoteright}. Additional thanks to the researchers at Asiaq Greenland Survey for their continued involvement in the ice-marginal lake classification processing and analysis. MG was in receipt of Natural Environment Research Council Doctoral Training Partnership award NE/L002574/1 whilst completing work for this study. Heiko Goelzer is thanked for sharing the ensemble mean ice thickness change grid from the ISMIP6 study. Victoria Lee and Morlighem et al. (via NSIDC) are both thanked for (separately) sharing BedMachine datasets. Two anonymous reviewers are thanked for their helpful comments that improved this manuscript. Publisher Copyright: {\textcopyright} 2022. The Authors.",
year = "2022",
month = jun,
day = "28",
doi = "10.1029/2022GL099276",
language = "English",
volume = "49",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "Wiley",
number = "12",
}
