Application of PROMICE Q-Transect in situ accumulation and ablation measurements (2000-2017) to constrain mass balance at the southern tip of the Greenland ice sheet
peer reviewed With nine southern Greenland ice sheet ablation area locations, the Programme for Monitoring of the Greenland Ice Sheet (PROMICE) “Q-transect” is a source of snow accumulation and ice ablation data spanning 17 years (2000 to present). Snow water equivalence measurements below equilibri...
Published in: | Journal of Geophysical Research: Earth Surface |
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Main Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Blackwell Publishing Ltd
2018
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Online Access: | https://orbi.uliege.be/handle/2268/301910 https://orbi.uliege.be/bitstream/2268/301910/1/Hermann_JGR_2018.pdf https://doi.org/10.1029/2017JF004408 |
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ftorbi:oai:orbi.ulg.ac.be:2268/301910 2024-10-13T14:07:27+00:00 Application of PROMICE Q-Transect in situ accumulation and ablation measurements (2000-2017) to constrain mass balance at the southern tip of the Greenland ice sheet Hermann, Mauro Box, Jason E. Fausto, Robert S. Colgan, William T. Langen, Peter L. Mottram, Ruth Wuite, Jan Noël, Brice van den Broeke, Michiel R. van As, Dirk 2018 https://orbi.uliege.be/handle/2268/301910 https://orbi.uliege.be/bitstream/2268/301910/1/Hermann_JGR_2018.pdf https://doi.org/10.1029/2017JF004408 en eng Blackwell Publishing Ltd https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2017JF004408 urn:issn:2169-9003 urn:issn:2169-9011 https://orbi.uliege.be/handle/2268/301910 info:hdl:2268/301910 https://orbi.uliege.be/bitstream/2268/301910/1/Hermann_JGR_2018.pdf doi:10.1029/2017JF004408 open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Journal of Geophysical Research. Earth Surface, 123 (6), 1235 - 1256 (2018) Earth-Surface Processes Geophysics Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2018 ftorbi https://doi.org/10.1029/2017JF004408 2024-09-27T07:01:57Z peer reviewed With nine southern Greenland ice sheet ablation area locations, the Programme for Monitoring of the Greenland Ice Sheet (PROMICE) “Q-transect” is a source of snow accumulation and ice ablation data spanning 17 years (2000 to present). Snow water equivalence measurements below equilibrium line altitude enable resolving the location and magnitude of an orographic precipitation maximum. Snow depth skillfully predicts snow water equivalence in this region, for which we find no evidence of change 2001-2017. After describing observed accumulation and ablation spatiotemporal patterns, we examine surface mass balance (SMB) in 5.5-km HIRHAM5, 7.5-km Modèle Atmosphèrique Régional (MAR) v3.7, and 1-km Regional Atmospheric Climate Model (RACMO2.3p2) regional climate model (RCM) output. HIRHAM5 and RACMO2.3p2 overestimate accumulation below equilibrium line altitude by 2 times. MAR SMB is closer to observations but lacks a distinct orographic peak. RCM ablation underestimation is attributable to overestimated snowfall (HIRHAM5 and RACMO2.3p2), overestimated bare ice albedo (MAR), and underestimation of downward turbulent heat fluxes. Calibrated ablation area RCM SMB data yield -0.3 ± 0.5 Gt/a SMB of the 559-km2 marine-terminating Sermilik glacier (September 2000 to October 2012). Using Enderlin et al. (2014, https://doi.org/10.1002/2013GL059010) ice discharge data, Sermilik glacier’s total mass balance is -1.3 ± 0.5 Gt/a with interannual variability dominated by SMB. The area specific mass loss is 17 to 20 times greater than the whole ice sheet mass loss after Andersen et al. (2015, https://doi.org/10.1016/j.epsl.2014.10.015) and Colgan et al. (2015, https://doi.org/10.1016/j.rse.2015.06.016), highlighting the Q-transect’s situation in an ice mass loss hot spot. Article in Journal/Newspaper glacier Greenland Ice Sheet Sermilik University of Liège: ORBi (Open Repository and Bibliography) Greenland Sermilik Glacier ENVELOPE(-78.195,-78.195,72.912,72.912) Journal of Geophysical Research: Earth Surface 123 6 1235 1256 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Earth-Surface Processes Geophysics Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
Earth-Surface Processes Geophysics Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Hermann, Mauro Box, Jason E. Fausto, Robert S. Colgan, William T. Langen, Peter L. Mottram, Ruth Wuite, Jan Noël, Brice van den Broeke, Michiel R. van As, Dirk Application of PROMICE Q-Transect in situ accumulation and ablation measurements (2000-2017) to constrain mass balance at the southern tip of the Greenland ice sheet |
topic_facet |
Earth-Surface Processes Geophysics Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
peer reviewed With nine southern Greenland ice sheet ablation area locations, the Programme for Monitoring of the Greenland Ice Sheet (PROMICE) “Q-transect” is a source of snow accumulation and ice ablation data spanning 17 years (2000 to present). Snow water equivalence measurements below equilibrium line altitude enable resolving the location and magnitude of an orographic precipitation maximum. Snow depth skillfully predicts snow water equivalence in this region, for which we find no evidence of change 2001-2017. After describing observed accumulation and ablation spatiotemporal patterns, we examine surface mass balance (SMB) in 5.5-km HIRHAM5, 7.5-km Modèle Atmosphèrique Régional (MAR) v3.7, and 1-km Regional Atmospheric Climate Model (RACMO2.3p2) regional climate model (RCM) output. HIRHAM5 and RACMO2.3p2 overestimate accumulation below equilibrium line altitude by 2 times. MAR SMB is closer to observations but lacks a distinct orographic peak. RCM ablation underestimation is attributable to overestimated snowfall (HIRHAM5 and RACMO2.3p2), overestimated bare ice albedo (MAR), and underestimation of downward turbulent heat fluxes. Calibrated ablation area RCM SMB data yield -0.3 ± 0.5 Gt/a SMB of the 559-km2 marine-terminating Sermilik glacier (September 2000 to October 2012). Using Enderlin et al. (2014, https://doi.org/10.1002/2013GL059010) ice discharge data, Sermilik glacier’s total mass balance is -1.3 ± 0.5 Gt/a with interannual variability dominated by SMB. The area specific mass loss is 17 to 20 times greater than the whole ice sheet mass loss after Andersen et al. (2015, https://doi.org/10.1016/j.epsl.2014.10.015) and Colgan et al. (2015, https://doi.org/10.1016/j.rse.2015.06.016), highlighting the Q-transect’s situation in an ice mass loss hot spot. |
format |
Article in Journal/Newspaper |
author |
Hermann, Mauro Box, Jason E. Fausto, Robert S. Colgan, William T. Langen, Peter L. Mottram, Ruth Wuite, Jan Noël, Brice van den Broeke, Michiel R. van As, Dirk |
author_facet |
Hermann, Mauro Box, Jason E. Fausto, Robert S. Colgan, William T. Langen, Peter L. Mottram, Ruth Wuite, Jan Noël, Brice van den Broeke, Michiel R. van As, Dirk |
author_sort |
Hermann, Mauro |
title |
Application of PROMICE Q-Transect in situ accumulation and ablation measurements (2000-2017) to constrain mass balance at the southern tip of the Greenland ice sheet |
title_short |
Application of PROMICE Q-Transect in situ accumulation and ablation measurements (2000-2017) to constrain mass balance at the southern tip of the Greenland ice sheet |
title_full |
Application of PROMICE Q-Transect in situ accumulation and ablation measurements (2000-2017) to constrain mass balance at the southern tip of the Greenland ice sheet |
title_fullStr |
Application of PROMICE Q-Transect in situ accumulation and ablation measurements (2000-2017) to constrain mass balance at the southern tip of the Greenland ice sheet |
title_full_unstemmed |
Application of PROMICE Q-Transect in situ accumulation and ablation measurements (2000-2017) to constrain mass balance at the southern tip of the Greenland ice sheet |
title_sort |
application of promice q-transect in situ accumulation and ablation measurements (2000-2017) to constrain mass balance at the southern tip of the greenland ice sheet |
publisher |
Blackwell Publishing Ltd |
publishDate |
2018 |
url |
https://orbi.uliege.be/handle/2268/301910 https://orbi.uliege.be/bitstream/2268/301910/1/Hermann_JGR_2018.pdf https://doi.org/10.1029/2017JF004408 |
long_lat |
ENVELOPE(-78.195,-78.195,72.912,72.912) |
geographic |
Greenland Sermilik Glacier |
geographic_facet |
Greenland Sermilik Glacier |
genre |
glacier Greenland Ice Sheet Sermilik |
genre_facet |
glacier Greenland Ice Sheet Sermilik |
op_source |
Journal of Geophysical Research. Earth Surface, 123 (6), 1235 - 1256 (2018) |
op_relation |
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1029%2F2017JF004408 urn:issn:2169-9003 urn:issn:2169-9011 https://orbi.uliege.be/handle/2268/301910 info:hdl:2268/301910 https://orbi.uliege.be/bitstream/2268/301910/1/Hermann_JGR_2018.pdf doi:10.1029/2017JF004408 |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2017JF004408 |
container_title |
Journal of Geophysical Research: Earth Surface |
container_volume |
123 |
container_issue |
6 |
container_start_page |
1235 |
op_container_end_page |
1256 |
_version_ |
1812813738289397760 |