DataSheet4_Supraglacial lake expansion, intensified lake drainage frequency, and first observation of coupled lake drainage, during 1985–2020 at Ryder Glacier, Northern Greenland.xlsx
Along the Greenland Ice Sheet margin, supraglacial lakes store and redistribute ice sheet surface run off, and comprise an important potential hydrological link between the ice surface and the base, with ramifications for subglacial drainage systems and ice flow. As a consequence of increasing globa...
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Online Access: | https://doi.org/10.3389/feart.2022.978137.s004 https://figshare.com/articles/dataset/DataSheet4_Supraglacial_lake_expansion_intensified_lake_drainage_frequency_and_first_observation_of_coupled_lake_drainage_during_1985_2020_at_Ryder_Glacier_Northern_Greenland_xlsx/21274380 |
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ftfrontimediafig:oai:figshare.com:article/21274380 2023-05-15T16:21:08+02:00 DataSheet4_Supraglacial lake expansion, intensified lake drainage frequency, and first observation of coupled lake drainage, during 1985–2020 at Ryder Glacier, Northern Greenland.xlsx Jacqueline Otto Felicity A. Holmes Nina Kirchner 2022-10-05T04:23:50Z https://doi.org/10.3389/feart.2022.978137.s004 https://figshare.com/articles/dataset/DataSheet4_Supraglacial_lake_expansion_intensified_lake_drainage_frequency_and_first_observation_of_coupled_lake_drainage_during_1985_2020_at_Ryder_Glacier_Northern_Greenland_xlsx/21274380 unknown doi:10.3389/feart.2022.978137.s004 https://figshare.com/articles/dataset/DataSheet4_Supraglacial_lake_expansion_intensified_lake_drainage_frequency_and_first_observation_of_coupled_lake_drainage_during_1985_2020_at_Ryder_Glacier_Northern_Greenland_xlsx/21274380 CC BY 4.0 CC-BY Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Greenland Ice Sheet supraglacial lakes lake drainage lake expansion glacier hydrology subglacial drainage system Dataset 2022 ftfrontimediafig https://doi.org/10.3389/feart.2022.978137.s004 2022-10-05T23:06:24Z Along the Greenland Ice Sheet margin, supraglacial lakes store and redistribute ice sheet surface run off, and comprise an important potential hydrological link between the ice surface and the base, with ramifications for subglacial drainage systems and ice flow. As a consequence of increasing global mean surface air temperatures, these lakes have been predicted to expand further inland and to affect larger areas of the ice sheet. However, as contemporary dynamics of such supraglacial lake expansion are not well studied, any assessment of their future implications remains afflicted with uncertainty. Here, recent changes in supraglacial lake distribution and expansion, and in their drainage behavior and frequency, are presented for Ryder Glacier, Northern Greenland, as concluded from a remote sensing based analysis. The 35-year time span covered in the analysis allows for the detection of trends in lake processes and ice velocity, which otherwise were found to exhibit large inter-annual variability. It also reveals the first occurrence of a coupled lake drainage event in 2002. By linking supraglacial lake expansion, drainage modes, and drainage frequency to the efficiency of the subglacial drainage system and ice flow on seasonal and decadal timescales, a contribution is made to better understand the complexity of coupled glacio-hydrological processes, and to help reduce uncertainties in predictions of future mass loss from the Greenland Ice Sheet. Dataset glacier Greenland Ice Sheet Frontiers: Figshare Greenland Ryder ENVELOPE(-68.333,-68.333,-67.566,-67.566) Ryder Glacier ENVELOPE(-67.250,-67.250,-71.116,-71.116) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Greenland Ice Sheet supraglacial lakes lake drainage lake expansion glacier hydrology subglacial drainage system |
spellingShingle |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Greenland Ice Sheet supraglacial lakes lake drainage lake expansion glacier hydrology subglacial drainage system Jacqueline Otto Felicity A. Holmes Nina Kirchner DataSheet4_Supraglacial lake expansion, intensified lake drainage frequency, and first observation of coupled lake drainage, during 1985–2020 at Ryder Glacier, Northern Greenland.xlsx |
topic_facet |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change Greenland Ice Sheet supraglacial lakes lake drainage lake expansion glacier hydrology subglacial drainage system |
description |
Along the Greenland Ice Sheet margin, supraglacial lakes store and redistribute ice sheet surface run off, and comprise an important potential hydrological link between the ice surface and the base, with ramifications for subglacial drainage systems and ice flow. As a consequence of increasing global mean surface air temperatures, these lakes have been predicted to expand further inland and to affect larger areas of the ice sheet. However, as contemporary dynamics of such supraglacial lake expansion are not well studied, any assessment of their future implications remains afflicted with uncertainty. Here, recent changes in supraglacial lake distribution and expansion, and in their drainage behavior and frequency, are presented for Ryder Glacier, Northern Greenland, as concluded from a remote sensing based analysis. The 35-year time span covered in the analysis allows for the detection of trends in lake processes and ice velocity, which otherwise were found to exhibit large inter-annual variability. It also reveals the first occurrence of a coupled lake drainage event in 2002. By linking supraglacial lake expansion, drainage modes, and drainage frequency to the efficiency of the subglacial drainage system and ice flow on seasonal and decadal timescales, a contribution is made to better understand the complexity of coupled glacio-hydrological processes, and to help reduce uncertainties in predictions of future mass loss from the Greenland Ice Sheet. |
format |
Dataset |
author |
Jacqueline Otto Felicity A. Holmes Nina Kirchner |
author_facet |
Jacqueline Otto Felicity A. Holmes Nina Kirchner |
author_sort |
Jacqueline Otto |
title |
DataSheet4_Supraglacial lake expansion, intensified lake drainage frequency, and first observation of coupled lake drainage, during 1985–2020 at Ryder Glacier, Northern Greenland.xlsx |
title_short |
DataSheet4_Supraglacial lake expansion, intensified lake drainage frequency, and first observation of coupled lake drainage, during 1985–2020 at Ryder Glacier, Northern Greenland.xlsx |
title_full |
DataSheet4_Supraglacial lake expansion, intensified lake drainage frequency, and first observation of coupled lake drainage, during 1985–2020 at Ryder Glacier, Northern Greenland.xlsx |
title_fullStr |
DataSheet4_Supraglacial lake expansion, intensified lake drainage frequency, and first observation of coupled lake drainage, during 1985–2020 at Ryder Glacier, Northern Greenland.xlsx |
title_full_unstemmed |
DataSheet4_Supraglacial lake expansion, intensified lake drainage frequency, and first observation of coupled lake drainage, during 1985–2020 at Ryder Glacier, Northern Greenland.xlsx |
title_sort |
datasheet4_supraglacial lake expansion, intensified lake drainage frequency, and first observation of coupled lake drainage, during 1985–2020 at ryder glacier, northern greenland.xlsx |
publishDate |
2022 |
url |
https://doi.org/10.3389/feart.2022.978137.s004 https://figshare.com/articles/dataset/DataSheet4_Supraglacial_lake_expansion_intensified_lake_drainage_frequency_and_first_observation_of_coupled_lake_drainage_during_1985_2020_at_Ryder_Glacier_Northern_Greenland_xlsx/21274380 |
long_lat |
ENVELOPE(-68.333,-68.333,-67.566,-67.566) ENVELOPE(-67.250,-67.250,-71.116,-71.116) |
geographic |
Greenland Ryder Ryder Glacier |
geographic_facet |
Greenland Ryder Ryder Glacier |
genre |
glacier Greenland Ice Sheet |
genre_facet |
glacier Greenland Ice Sheet |
op_relation |
doi:10.3389/feart.2022.978137.s004 https://figshare.com/articles/dataset/DataSheet4_Supraglacial_lake_expansion_intensified_lake_drainage_frequency_and_first_observation_of_coupled_lake_drainage_during_1985_2020_at_Ryder_Glacier_Northern_Greenland_xlsx/21274380 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/feart.2022.978137.s004 |
_version_ |
1766009148026126336 |