Dataset for Dynamic Mass Loss from Greenland's Peripheral Glaciers
While global glacier mass balance has decreased rapidly over the last two decades, mass loss has been greatest in regions with marine-terminating glaciers. In Greenland, peripheral glaciers and ice caps (GICs) cover only ~5% of Greenland’s area but contributed ~14-20% of the island’s ice mass loss b...
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ftboisestateu:oai:scholarworks.boisestate.edu:geo_data-1004 2023-10-29T02:36:28+01:00 Dataset for Dynamic Mass Loss from Greenland's Peripheral Glaciers Bollen, Katherine Enderlin, Ellyn Muhlheim, Rebecca 2021-08-02T07:00:00Z application/zip https://scholarworks.boisestate.edu/geo_data/5 https://doi.org/10.18122/geo_data.5.boisestate https://scholarworks.boisestate.edu/context/geo_data/article/1004/type/native/viewcontent/geo_data_5_enderlin_08022021.zip unknown ScholarWorks https://scholarworks.boisestate.edu/geo_data/5 doi:10.18122/geo_data.5.boisestate https://scholarworks.boisestate.edu/context/geo_data/article/1004/type/native/viewcontent/geo_data_5_enderlin_08022021.zip Geosciences Research Data glaciers ice discharge Greenland cryosphere text 2021 ftboisestateu https://doi.org/10.18122/geo_data.5.boisestate 2023-09-29T15:22:03Z While global glacier mass balance has decreased rapidly over the last two decades, mass loss has been greatest in regions with marine-terminating glaciers. In Greenland, peripheral glaciers and ice caps (GICs) cover only ~5% of Greenland’s area but contributed ~14-20% of the island’s ice mass loss between 2003-2008. Although Greenland GIC’s mass loss due to surface meltwater runoff have been estimated using atmospheric models, mass loss due to changes in ice discharge into surrounding ocean basins (i.e., dynamic mass loss) remains unquantified. Here, we use the flux gate method to estimate discharge from Greenland’s 585 marine-terminating peripheral glaciers and compute dynamic mass loss as the discharge anomaly relative to the 1985-1998 period. Greenland GIC discharge averages 2.5 Gt/yr from 1985-1998 and abruptly increases to an average of 5.1 Gt/yr from 1999-2018, indicating a -2.6 Gt/yr mass anomaly. This mass loss is driven by synchronous widespread acceleration around Greenland and, unlike the ice sheet, it is not primarily caused by changes in discharge from a small number of glaciers with very large discharge. These estimates indicate that although Greenland GICs are small, they are sensitive to changes in climate and should not be overlooked in future analyses of glacier dynamics and mass loss. Text glacier Greenland Ice Sheet Boise State University: Scholar Works |
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Open Polar |
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Boise State University: Scholar Works |
op_collection_id |
ftboisestateu |
language |
unknown |
topic |
glaciers ice discharge Greenland cryosphere |
spellingShingle |
glaciers ice discharge Greenland cryosphere Bollen, Katherine Enderlin, Ellyn Muhlheim, Rebecca Dataset for Dynamic Mass Loss from Greenland's Peripheral Glaciers |
topic_facet |
glaciers ice discharge Greenland cryosphere |
description |
While global glacier mass balance has decreased rapidly over the last two decades, mass loss has been greatest in regions with marine-terminating glaciers. In Greenland, peripheral glaciers and ice caps (GICs) cover only ~5% of Greenland’s area but contributed ~14-20% of the island’s ice mass loss between 2003-2008. Although Greenland GIC’s mass loss due to surface meltwater runoff have been estimated using atmospheric models, mass loss due to changes in ice discharge into surrounding ocean basins (i.e., dynamic mass loss) remains unquantified. Here, we use the flux gate method to estimate discharge from Greenland’s 585 marine-terminating peripheral glaciers and compute dynamic mass loss as the discharge anomaly relative to the 1985-1998 period. Greenland GIC discharge averages 2.5 Gt/yr from 1985-1998 and abruptly increases to an average of 5.1 Gt/yr from 1999-2018, indicating a -2.6 Gt/yr mass anomaly. This mass loss is driven by synchronous widespread acceleration around Greenland and, unlike the ice sheet, it is not primarily caused by changes in discharge from a small number of glaciers with very large discharge. These estimates indicate that although Greenland GICs are small, they are sensitive to changes in climate and should not be overlooked in future analyses of glacier dynamics and mass loss. |
format |
Text |
author |
Bollen, Katherine Enderlin, Ellyn Muhlheim, Rebecca |
author_facet |
Bollen, Katherine Enderlin, Ellyn Muhlheim, Rebecca |
author_sort |
Bollen, Katherine |
title |
Dataset for Dynamic Mass Loss from Greenland's Peripheral Glaciers |
title_short |
Dataset for Dynamic Mass Loss from Greenland's Peripheral Glaciers |
title_full |
Dataset for Dynamic Mass Loss from Greenland's Peripheral Glaciers |
title_fullStr |
Dataset for Dynamic Mass Loss from Greenland's Peripheral Glaciers |
title_full_unstemmed |
Dataset for Dynamic Mass Loss from Greenland's Peripheral Glaciers |
title_sort |
dataset for dynamic mass loss from greenland's peripheral glaciers |
publisher |
ScholarWorks |
publishDate |
2021 |
url |
https://scholarworks.boisestate.edu/geo_data/5 https://doi.org/10.18122/geo_data.5.boisestate https://scholarworks.boisestate.edu/context/geo_data/article/1004/type/native/viewcontent/geo_data_5_enderlin_08022021.zip |
genre |
glacier Greenland Ice Sheet |
genre_facet |
glacier Greenland Ice Sheet |
op_source |
Geosciences Research Data |
op_relation |
https://scholarworks.boisestate.edu/geo_data/5 doi:10.18122/geo_data.5.boisestate https://scholarworks.boisestate.edu/context/geo_data/article/1004/type/native/viewcontent/geo_data_5_enderlin_08022021.zip |
op_doi |
https://doi.org/10.18122/geo_data.5.boisestate |
_version_ |
1781060433697832960 |