Flood events caused by discharge from Qaanaaq Glacier, northwestern Greenland
As a result of climate warming, glacial meltwater discharge has been increasing in Greenland. During the summers of 2015 and 2016, there were rapid increases in discharge from Qaanaaq Glacier in northwestern Greenland. These discharges resulted in floods that destroyed the road linking the settlemen...
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Online Access: | http://hdl.handle.net/2115/81774 https://doi.org/10.1017/jog.2021.3 |
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/81774 2023-05-15T15:07:27+02:00 Flood events caused by discharge from Qaanaaq Glacier, northwestern Greenland Kondo, Ken Sugiyama, Shin Sakakibara, Daiki Fukumoto, Shungo http://hdl.handle.net/2115/81774 https://doi.org/10.1017/jog.2021.3 eng eng Cambridge University Press http://hdl.handle.net/2115/81774 Journal of glaciology, 67(263): 500-510 http://dx.doi.org/10.1017/jog.2021.3 http://creativecommons.org/licenses/by/4.0/ CC-BY Arctic glaciology glacier hazards glacier hydrology ice cap 450 article fthokunivhus https://doi.org/10.1017/jog.2021.3 2022-11-18T01:06:26Z As a result of climate warming, glacial meltwater discharge has been increasing in Greenland. During the summers of 2015 and 2016, there were rapid increases in discharge from Qaanaaq Glacier in northwestern Greenland. These discharges resulted in floods that destroyed the road linking the settlement of Qaanaaq to Qaanaaq Airport. Field measurements were performed and a numerical model of glacier runoff was developed to quantify these discharges. The high discharge associated with the 2015 flood, estimated at 9.1 m(3) s(-1) (hourly mean), resulted from intensive glacier melting due to warm air temperature and strong winds, while the high discharge associated with the 2016 flood resulted from heavy rainfall (90 mm d(-1)) that led to a peak discharge estimated at 19.9 m(3) s(-1). The developed model, when used to investigate future glacier runoff under warming conditions, revealed a nonlinear increase in glacial melt with increasing temperature. Additionally, the model forecasted a threefold increase in total summer discharge, owing to a 4 degrees C rise in temperature. Thus, this study quantified the impact of a changing climate on glacier runoff, which gives insight into future risks of flood hazards along the coast of Greenland. Article in Journal/Newspaper Arctic glacier Greenland Ice cap Journal of Glaciology Qaanaaq Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Arctic Greenland Qaanaaq ENVELOPE(-69.232,-69.232,77.467,77.467) Qaanaaq Airport ENVELOPE(-69.389,-69.389,77.489,77.489) Journal of Glaciology 67 263 500 510 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
Arctic glaciology glacier hazards glacier hydrology ice cap 450 |
spellingShingle |
Arctic glaciology glacier hazards glacier hydrology ice cap 450 Kondo, Ken Sugiyama, Shin Sakakibara, Daiki Fukumoto, Shungo Flood events caused by discharge from Qaanaaq Glacier, northwestern Greenland |
topic_facet |
Arctic glaciology glacier hazards glacier hydrology ice cap 450 |
description |
As a result of climate warming, glacial meltwater discharge has been increasing in Greenland. During the summers of 2015 and 2016, there were rapid increases in discharge from Qaanaaq Glacier in northwestern Greenland. These discharges resulted in floods that destroyed the road linking the settlement of Qaanaaq to Qaanaaq Airport. Field measurements were performed and a numerical model of glacier runoff was developed to quantify these discharges. The high discharge associated with the 2015 flood, estimated at 9.1 m(3) s(-1) (hourly mean), resulted from intensive glacier melting due to warm air temperature and strong winds, while the high discharge associated with the 2016 flood resulted from heavy rainfall (90 mm d(-1)) that led to a peak discharge estimated at 19.9 m(3) s(-1). The developed model, when used to investigate future glacier runoff under warming conditions, revealed a nonlinear increase in glacial melt with increasing temperature. Additionally, the model forecasted a threefold increase in total summer discharge, owing to a 4 degrees C rise in temperature. Thus, this study quantified the impact of a changing climate on glacier runoff, which gives insight into future risks of flood hazards along the coast of Greenland. |
format |
Article in Journal/Newspaper |
author |
Kondo, Ken Sugiyama, Shin Sakakibara, Daiki Fukumoto, Shungo |
author_facet |
Kondo, Ken Sugiyama, Shin Sakakibara, Daiki Fukumoto, Shungo |
author_sort |
Kondo, Ken |
title |
Flood events caused by discharge from Qaanaaq Glacier, northwestern Greenland |
title_short |
Flood events caused by discharge from Qaanaaq Glacier, northwestern Greenland |
title_full |
Flood events caused by discharge from Qaanaaq Glacier, northwestern Greenland |
title_fullStr |
Flood events caused by discharge from Qaanaaq Glacier, northwestern Greenland |
title_full_unstemmed |
Flood events caused by discharge from Qaanaaq Glacier, northwestern Greenland |
title_sort |
flood events caused by discharge from qaanaaq glacier, northwestern greenland |
publisher |
Cambridge University Press |
url |
http://hdl.handle.net/2115/81774 https://doi.org/10.1017/jog.2021.3 |
long_lat |
ENVELOPE(-69.232,-69.232,77.467,77.467) ENVELOPE(-69.389,-69.389,77.489,77.489) |
geographic |
Arctic Greenland Qaanaaq Qaanaaq Airport |
geographic_facet |
Arctic Greenland Qaanaaq Qaanaaq Airport |
genre |
Arctic glacier Greenland Ice cap Journal of Glaciology Qaanaaq |
genre_facet |
Arctic glacier Greenland Ice cap Journal of Glaciology Qaanaaq |
op_relation |
http://hdl.handle.net/2115/81774 Journal of glaciology, 67(263): 500-510 http://dx.doi.org/10.1017/jog.2021.3 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1017/jog.2021.3 |
container_title |
Journal of Glaciology |
container_volume |
67 |
container_issue |
263 |
container_start_page |
500 |
op_container_end_page |
510 |
_version_ |
1766338949096144896 |