Arctic tsunamis threaten coastal landscapes and communities – survey of Karrat Isfjord 2017 tsunami effects in Nuugaatsiaq, western Greenland
On the 17 June 2017, a massive landslide which mobilized 35–58 million m3 of material entered the Karrat Isfjord in western Greenland. It triggered a tsunami wave with a runup height exceeding 90 m close to the landslide, ca. 50 m on the opposite shore of the fjord. The tsunami travelled ca. 32 km a...
Published in: | Natural Hazards and Earth System Sciences |
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Copernicus Publications
2020
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Online Access: | https://doi.org/10.5194/nhess-20-2521-2020 https://noa.gwlb.de/receive/cop_mods_00053193 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00052846/nhess-20-2521-2020.pdf https://nhess.copernicus.org/articles/20/2521/2020/nhess-20-2521-2020.pdf |
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00053193 2023-05-15T15:07:34+02:00 Arctic tsunamis threaten coastal landscapes and communities – survey of Karrat Isfjord 2017 tsunami effects in Nuugaatsiaq, western Greenland Strzelecki, Mateusz C. Jaskólski, Marek W. 2020-09 electronic https://doi.org/10.5194/nhess-20-2521-2020 https://noa.gwlb.de/receive/cop_mods_00053193 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00052846/nhess-20-2521-2020.pdf https://nhess.copernicus.org/articles/20/2521/2020/nhess-20-2521-2020.pdf eng eng Copernicus Publications Natural Hazards and Earth System Sciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2064587 -- http://www.nat-hazards-earth-syst-sci.net/ -- 1684-9981 https://doi.org/10.5194/nhess-20-2521-2020 https://noa.gwlb.de/receive/cop_mods_00053193 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00052846/nhess-20-2521-2020.pdf https://nhess.copernicus.org/articles/20/2521/2020/nhess-20-2521-2020.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2020 ftnonlinearchiv https://doi.org/10.5194/nhess-20-2521-2020 2022-02-08T22:35:36Z On the 17 June 2017, a massive landslide which mobilized 35–58 million m3 of material entered the Karrat Isfjord in western Greenland. It triggered a tsunami wave with a runup height exceeding 90 m close to the landslide, ca. 50 m on the opposite shore of the fjord. The tsunami travelled ca. 32 km along the fjord and reached the settlement of Nuugaatsiaq with ca. 1–1.5 m high waves which flooded the terrain up to 9 m a.s.l. (above sea level). Tsunami waves were powerful enough to destroy the community infrastructure, impact fragile coastal tundra landscape, and unfortunately injure several inhabitants and cause four deaths. Our field survey carried out 25 months after the event results in documentation of the previously unreported scale of damage in the settlement (ca. 48 % of infrastructure objects including houses and administration buildings were destroyed by the tsunami). We have observed a recognizable difference in the concentration of tsunami deposit accumulations between areas of the settlement overwashed by the wave and areas of runup and return flow. The key tsunami effects preserved in the coastal landscape were eroded coastal bluffs, gullied and dissected edges of cliffed coast in the harbour, and tundra vegetation compressed by boulders or icebergs rafted onshore during the event. Article in Journal/Newspaper Arctic Greenland Iceberg* Nuugaatsiaq Tundra Niedersächsisches Online-Archiv NOA Arctic Greenland Isfjord ENVELOPE(-26.917,-26.917,73.333,73.333) Nuugaatsiaq ENVELOPE(-53.212,-53.212,71.536,71.536) Karrat Isfjord ENVELOPE(-52.583,-52.583,71.583,71.583) Natural Hazards and Earth System Sciences 20 9 2521 2534 |
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Open Polar |
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Niedersächsisches Online-Archiv NOA |
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English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Strzelecki, Mateusz C. Jaskólski, Marek W. Arctic tsunamis threaten coastal landscapes and communities – survey of Karrat Isfjord 2017 tsunami effects in Nuugaatsiaq, western Greenland |
topic_facet |
article Verlagsveröffentlichung |
description |
On the 17 June 2017, a massive landslide which mobilized 35–58 million m3 of material entered the Karrat Isfjord in western Greenland. It triggered a tsunami wave with a runup height exceeding 90 m close to the landslide, ca. 50 m on the opposite shore of the fjord. The tsunami travelled ca. 32 km along the fjord and reached the settlement of Nuugaatsiaq with ca. 1–1.5 m high waves which flooded the terrain up to 9 m a.s.l. (above sea level). Tsunami waves were powerful enough to destroy the community infrastructure, impact fragile coastal tundra landscape, and unfortunately injure several inhabitants and cause four deaths. Our field survey carried out 25 months after the event results in documentation of the previously unreported scale of damage in the settlement (ca. 48 % of infrastructure objects including houses and administration buildings were destroyed by the tsunami). We have observed a recognizable difference in the concentration of tsunami deposit accumulations between areas of the settlement overwashed by the wave and areas of runup and return flow. The key tsunami effects preserved in the coastal landscape were eroded coastal bluffs, gullied and dissected edges of cliffed coast in the harbour, and tundra vegetation compressed by boulders or icebergs rafted onshore during the event. |
format |
Article in Journal/Newspaper |
author |
Strzelecki, Mateusz C. Jaskólski, Marek W. |
author_facet |
Strzelecki, Mateusz C. Jaskólski, Marek W. |
author_sort |
Strzelecki, Mateusz C. |
title |
Arctic tsunamis threaten coastal landscapes and communities – survey of Karrat Isfjord 2017 tsunami effects in Nuugaatsiaq, western Greenland |
title_short |
Arctic tsunamis threaten coastal landscapes and communities – survey of Karrat Isfjord 2017 tsunami effects in Nuugaatsiaq, western Greenland |
title_full |
Arctic tsunamis threaten coastal landscapes and communities – survey of Karrat Isfjord 2017 tsunami effects in Nuugaatsiaq, western Greenland |
title_fullStr |
Arctic tsunamis threaten coastal landscapes and communities – survey of Karrat Isfjord 2017 tsunami effects in Nuugaatsiaq, western Greenland |
title_full_unstemmed |
Arctic tsunamis threaten coastal landscapes and communities – survey of Karrat Isfjord 2017 tsunami effects in Nuugaatsiaq, western Greenland |
title_sort |
arctic tsunamis threaten coastal landscapes and communities – survey of karrat isfjord 2017 tsunami effects in nuugaatsiaq, western greenland |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/nhess-20-2521-2020 https://noa.gwlb.de/receive/cop_mods_00053193 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00052846/nhess-20-2521-2020.pdf https://nhess.copernicus.org/articles/20/2521/2020/nhess-20-2521-2020.pdf |
long_lat |
ENVELOPE(-26.917,-26.917,73.333,73.333) ENVELOPE(-53.212,-53.212,71.536,71.536) ENVELOPE(-52.583,-52.583,71.583,71.583) |
geographic |
Arctic Greenland Isfjord Nuugaatsiaq Karrat Isfjord |
geographic_facet |
Arctic Greenland Isfjord Nuugaatsiaq Karrat Isfjord |
genre |
Arctic Greenland Iceberg* Nuugaatsiaq Tundra |
genre_facet |
Arctic Greenland Iceberg* Nuugaatsiaq Tundra |
op_relation |
Natural Hazards and Earth System Sciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2064587 -- http://www.nat-hazards-earth-syst-sci.net/ -- 1684-9981 https://doi.org/10.5194/nhess-20-2521-2020 https://noa.gwlb.de/receive/cop_mods_00053193 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00052846/nhess-20-2521-2020.pdf https://nhess.copernicus.org/articles/20/2521/2020/nhess-20-2521-2020.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/nhess-20-2521-2020 |
container_title |
Natural Hazards and Earth System Sciences |
container_volume |
20 |
container_issue |
9 |
container_start_page |
2521 |
op_container_end_page |
2534 |
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1766339046562332672 |