Flood events caused by discharge from Qaanaaq Glacier, northwestern Greenland
Abstract 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...
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crcambridgeupr:10.1017/jog.2021.3 2024-06-23T07:53:00+00:00 Flood events caused by discharge from Qaanaaq Glacier, northwestern Greenland Kondo, Ken Sugiyama, Shin Sakakibara, Daiki Fukumoto, Shungo 2021 http://dx.doi.org/10.1017/jog.2021.3 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143021000034 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Journal of Glaciology volume 67, issue 263, page 500-510 ISSN 0022-1430 1727-5652 journal-article 2021 crcambridgeupr https://doi.org/10.1017/jog.2021.3 2024-06-12T04:04:51Z Abstract 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 °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 glacier Greenland Journal of Glaciology Qaanaaq Cambridge University Press 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 |
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Open Polar |
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Cambridge University Press |
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English |
description |
Abstract 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 °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 |
spellingShingle |
Kondo, Ken Sugiyama, Shin Sakakibara, Daiki Fukumoto, Shungo Flood events caused by discharge from Qaanaaq Glacier, northwestern Greenland |
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 (CUP) |
publishDate |
2021 |
url |
http://dx.doi.org/10.1017/jog.2021.3 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143021000034 |
long_lat |
ENVELOPE(-69.232,-69.232,77.467,77.467) ENVELOPE(-69.389,-69.389,77.489,77.489) |
geographic |
Greenland Qaanaaq Qaanaaq Airport |
geographic_facet |
Greenland Qaanaaq Qaanaaq Airport |
genre |
glacier Greenland Journal of Glaciology Qaanaaq |
genre_facet |
glacier Greenland Journal of Glaciology Qaanaaq |
op_source |
Journal of Glaciology volume 67, issue 263, page 500-510 ISSN 0022-1430 1727-5652 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
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_ |
1802644469030322176 |