Supraglacial ponds regulate runoff from Himalayan debris-covered glaciers
Source at https://doi.org/10.1002/2017GL075398 . Meltwater and runoff from glaciers in High Mountain Asia is a vital freshwater resource for one-fifth of the Earth’s population. Between 13% and 36% of the region’s glacierized areas exhibit surface debris cover and associated supraglacial ponds whose...
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Online Access: | https://hdl.handle.net/10037/12433 https://doi.org/10.1002/2017GL075398 |
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ftunivtroemsoe:oai:munin.uit.no:10037/12433 2023-05-15T14:27:18+02:00 Supraglacial ponds regulate runoff from Himalayan debris-covered glaciers Irvine-Fynn, Tristram D.L. Porter, Philip R. Rowan, Ann V. Quincey, Duncan J. Gibson, Morgan J. Bridge, Jonathan W. Watson, C. Scott Hubbard, Alun Lloyd Glasser, Neil F. 2017-11-29 https://hdl.handle.net/10037/12433 https://doi.org/10.1002/2017GL075398 eng eng American Geophysical Union Geophysical Research Letters info:eu-repo/grantAgreement/RCN/SFF/223259/NORWAY/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/ Irvine-Fynn, T. D., Porter, P. R., Rowan, A. V., Quincey, D. J., Gibson, M. J., Bridge, J. W., Watson, C. S. . Glasser, N. F. (2017) Supraglacial ponds regulate runoff from Himalayan debris-covered glaciers . Geophysical Research Letters. 44(23):11,894-11,904 FRIDAID 1523768 doi:10.1002/2017GL075398 0094-8276 1944-8007 https://hdl.handle.net/10037/12433 openAccess VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi glasiologi: 465 VDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology glaciology: 465 Himalaya supraglacial ponds runoff recession debris‐covered glacier Journal article Tidsskriftartikkel Peer reviewed 2017 ftunivtroemsoe https://doi.org/10.1002/2017GL075398 2021-06-25T17:55:51Z Source at https://doi.org/10.1002/2017GL075398 . Meltwater and runoff from glaciers in High Mountain Asia is a vital freshwater resource for one-fifth of the Earth’s population. Between 13% and 36% of the region’s glacierized areas exhibit surface debris cover and associated supraglacial ponds whose hydrological buffering roles remain unconstrained. We present a high-resolution meltwater hydrograph from the extensively debris-covered Khumbu Glacier, Nepal, spanning a 7 month period in 2014. Supraglacial ponds and accompanying debris cover modulate proglacial discharge by acting as transient and evolving reservoirs. Diurnally, the supraglacial pond system may store >23% of observed mean daily discharge, with mean recession constants ranging from 31 to 108 h. Given projections of increased debris cover and supraglacial pond extent across High Mountain Asia, we conclude that runoff regimes may become progressively buffered by the presence of supraglacial reservoirs. Incorporation of these processes is critical to improve predictions of the region’s freshwater resource availability and cascading environmental effects downstream. Article in Journal/Newspaper Arctic University of Tromsø: Munin Open Research Archive Geophysical Research Letters 44 23 11,894 11,904 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi glasiologi: 465 VDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology glaciology: 465 Himalaya supraglacial ponds runoff recession debris‐covered glacier |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi glasiologi: 465 VDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology glaciology: 465 Himalaya supraglacial ponds runoff recession debris‐covered glacier Irvine-Fynn, Tristram D.L. Porter, Philip R. Rowan, Ann V. Quincey, Duncan J. Gibson, Morgan J. Bridge, Jonathan W. Watson, C. Scott Hubbard, Alun Lloyd Glasser, Neil F. Supraglacial ponds regulate runoff from Himalayan debris-covered glaciers |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Kvartærgeologi glasiologi: 465 VDP::Mathematics and natural science: 400::Geosciences: 450::Quaternary geology glaciology: 465 Himalaya supraglacial ponds runoff recession debris‐covered glacier |
description |
Source at https://doi.org/10.1002/2017GL075398 . Meltwater and runoff from glaciers in High Mountain Asia is a vital freshwater resource for one-fifth of the Earth’s population. Between 13% and 36% of the region’s glacierized areas exhibit surface debris cover and associated supraglacial ponds whose hydrological buffering roles remain unconstrained. We present a high-resolution meltwater hydrograph from the extensively debris-covered Khumbu Glacier, Nepal, spanning a 7 month period in 2014. Supraglacial ponds and accompanying debris cover modulate proglacial discharge by acting as transient and evolving reservoirs. Diurnally, the supraglacial pond system may store >23% of observed mean daily discharge, with mean recession constants ranging from 31 to 108 h. Given projections of increased debris cover and supraglacial pond extent across High Mountain Asia, we conclude that runoff regimes may become progressively buffered by the presence of supraglacial reservoirs. Incorporation of these processes is critical to improve predictions of the region’s freshwater resource availability and cascading environmental effects downstream. |
format |
Article in Journal/Newspaper |
author |
Irvine-Fynn, Tristram D.L. Porter, Philip R. Rowan, Ann V. Quincey, Duncan J. Gibson, Morgan J. Bridge, Jonathan W. Watson, C. Scott Hubbard, Alun Lloyd Glasser, Neil F. |
author_facet |
Irvine-Fynn, Tristram D.L. Porter, Philip R. Rowan, Ann V. Quincey, Duncan J. Gibson, Morgan J. Bridge, Jonathan W. Watson, C. Scott Hubbard, Alun Lloyd Glasser, Neil F. |
author_sort |
Irvine-Fynn, Tristram D.L. |
title |
Supraglacial ponds regulate runoff from Himalayan debris-covered glaciers |
title_short |
Supraglacial ponds regulate runoff from Himalayan debris-covered glaciers |
title_full |
Supraglacial ponds regulate runoff from Himalayan debris-covered glaciers |
title_fullStr |
Supraglacial ponds regulate runoff from Himalayan debris-covered glaciers |
title_full_unstemmed |
Supraglacial ponds regulate runoff from Himalayan debris-covered glaciers |
title_sort |
supraglacial ponds regulate runoff from himalayan debris-covered glaciers |
publisher |
American Geophysical Union |
publishDate |
2017 |
url |
https://hdl.handle.net/10037/12433 https://doi.org/10.1002/2017GL075398 |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Geophysical Research Letters info:eu-repo/grantAgreement/RCN/SFF/223259/NORWAY/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/ Irvine-Fynn, T. D., Porter, P. R., Rowan, A. V., Quincey, D. J., Gibson, M. J., Bridge, J. W., Watson, C. S. . Glasser, N. F. (2017) Supraglacial ponds regulate runoff from Himalayan debris-covered glaciers . Geophysical Research Letters. 44(23):11,894-11,904 FRIDAID 1523768 doi:10.1002/2017GL075398 0094-8276 1944-8007 https://hdl.handle.net/10037/12433 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1002/2017GL075398 |
container_title |
Geophysical Research Letters |
container_volume |
44 |
container_issue |
23 |
container_start_page |
11,894 |
op_container_end_page |
11,904 |
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1766300990161551360 |