Greenland-wide inventory of ice marginal lakes using a multi-method approach

Abstract Ice marginal lakes are a dynamic component of terrestrial meltwater storage at the margin of the Greenland Ice Sheet. Despite their significance to the sea level budget, local flood hazards and bigeochemical fluxes, there is a lack of Greenland-wide research into ice marginal lakes. Here, a...

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Autores principales: Penelope How, Alexandra Messerli, Eva Mätzler, Maurizio Santoro, Andreas Wiesmann, Rafael Caduff, Kirsty Langley, Mikkel Høegh Bojesen, Frank Paul, Andreas Kääb, Jonathan L. Carrivick
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Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/63189a9d84f040ebabc926dce4eb0111
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spelling oai:doaj.org-article:63189a9d84f040ebabc926dce4eb01112021-12-02T15:53:00ZGreenland-wide inventory of ice marginal lakes using a multi-method approach10.1038/s41598-021-83509-12045-2322https://doaj.org/article/63189a9d84f040ebabc926dce4eb01112021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-83509-1https://doaj.org/toc/2045-2322Abstract Ice marginal lakes are a dynamic component of terrestrial meltwater storage at the margin of the Greenland Ice Sheet. Despite their significance to the sea level budget, local flood hazards and bigeochemical fluxes, there is a lack of Greenland-wide research into ice marginal lakes. Here, a detailed multi-sensor inventory of Greenland’s ice marginal lakes is presented based on three well-established detection methods to form a unified remote sensing approach. The inventory consists of 3347 ( $$\pm 8$$ ± 8 %) ice marginal lakes ( $$>0.05\,{{\text{ km }}^{2}}$$ > 0.05 km 2 ) detected for the year 2017. The greatest proportion of lakes lie around Greenland’s ice caps and mountain glaciers, and the southwest margin of the ice sheet. Through comparison to previous studies, a $$\sim 75$$ ∼ 75 % increase in lake frequency is evident over the west margin of the ice sheet since 1985. This suggests it is becoming increasingly important to include ice marginal lakes in future sea level projections, where these lakes will form a dynamic storage of meltwater that can influence outlet glacier dynamics. Comparison to existing global glacial lake inventories demonstrate that up to 56% of ice marginal lakes could be unaccounted for in global estimates of ice marginal lake change, likely due to the reliance on a single lake detection method.Penelope HowAlexandra MesserliEva MätzlerMaurizio SantoroAndreas WiesmannRafael CaduffKirsty LangleyMikkel Høegh BojesenFrank PaulAndreas KääbJonathan L. CarrivickNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Penelope How
Alexandra Messerli
Eva Mätzler
Maurizio Santoro
Andreas Wiesmann
Rafael Caduff
Kirsty Langley
Mikkel Høegh Bojesen
Frank Paul
Andreas Kääb
Jonathan L. Carrivick
Greenland-wide inventory of ice marginal lakes using a multi-method approach
description Abstract Ice marginal lakes are a dynamic component of terrestrial meltwater storage at the margin of the Greenland Ice Sheet. Despite their significance to the sea level budget, local flood hazards and bigeochemical fluxes, there is a lack of Greenland-wide research into ice marginal lakes. Here, a detailed multi-sensor inventory of Greenland’s ice marginal lakes is presented based on three well-established detection methods to form a unified remote sensing approach. The inventory consists of 3347 ( $$\pm 8$$ ± 8 %) ice marginal lakes ( $$>0.05\,{{\text{ km }}^{2}}$$ > 0.05 km 2 ) detected for the year 2017. The greatest proportion of lakes lie around Greenland’s ice caps and mountain glaciers, and the southwest margin of the ice sheet. Through comparison to previous studies, a $$\sim 75$$ ∼ 75 % increase in lake frequency is evident over the west margin of the ice sheet since 1985. This suggests it is becoming increasingly important to include ice marginal lakes in future sea level projections, where these lakes will form a dynamic storage of meltwater that can influence outlet glacier dynamics. Comparison to existing global glacial lake inventories demonstrate that up to 56% of ice marginal lakes could be unaccounted for in global estimates of ice marginal lake change, likely due to the reliance on a single lake detection method.
format article
author Penelope How
Alexandra Messerli
Eva Mätzler
Maurizio Santoro
Andreas Wiesmann
Rafael Caduff
Kirsty Langley
Mikkel Høegh Bojesen
Frank Paul
Andreas Kääb
Jonathan L. Carrivick
author_facet Penelope How
Alexandra Messerli
Eva Mätzler
Maurizio Santoro
Andreas Wiesmann
Rafael Caduff
Kirsty Langley
Mikkel Høegh Bojesen
Frank Paul
Andreas Kääb
Jonathan L. Carrivick
author_sort Penelope How
title Greenland-wide inventory of ice marginal lakes using a multi-method approach
title_short Greenland-wide inventory of ice marginal lakes using a multi-method approach
title_full Greenland-wide inventory of ice marginal lakes using a multi-method approach
title_fullStr Greenland-wide inventory of ice marginal lakes using a multi-method approach
title_full_unstemmed Greenland-wide inventory of ice marginal lakes using a multi-method approach
title_sort greenland-wide inventory of ice marginal lakes using a multi-method approach
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/63189a9d84f040ebabc926dce4eb0111
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