Preliminary landslide mapping in Greenland
The landslide of 17 June 2017 in Karrat Fjord, central West Greenland, highlighted the need for a better understanding of landslides and landslide-generated tsunamis in Greenland and motivated a landslide screening project in 2018, led by the Geological Survey of Denmark and Greenland (GEUS; see als...
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ftjgeusbullet:oai:geusjournals.org:article/4301 2023-05-15T16:03:52+02:00 Preliminary landslide mapping in Greenland Svennevig, Kristian 2019-06-17 application/pdf text/html application/epub+zip text/xml https://geusbulletin.org/index.php/geusb/article/view/4301 https://doi.org/10.34194/GEUSB-201943-02-07 eng eng Geological Survey of Denmark and Greenland (GEUS) https://geusbulletin.org/index.php/geusb/article/view/4301/10053 https://geusbulletin.org/index.php/geusb/article/view/4301/10535 https://geusbulletin.org/index.php/geusb/article/view/4301/10536 https://geusbulletin.org/index.php/geusb/article/view/4301/10177 https://geusbulletin.org/index.php/geusb/article/view/4301 doi:10.34194/GEUSB-201943-02-07 GEUS Bulletin; Vol. 43 (2019): Review of Survey activities 2018 2597-2154 2597-2162 10.34194/geusb.v43 Landslide Greenland Mapping Historical records GIS info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Rapid Communication. Peer-reviewed Article. 2019 ftjgeusbullet https://doi.org/10.34194/GEUSB-201943-02-07 https://doi.org/10.34194/geusb.v43 2022-03-15T17:22:06Z The landslide of 17 June 2017 in Karrat Fjord, central West Greenland, highlighted the need for a better understanding of landslides and landslide-generated tsunamis in Greenland and motivated a landslide screening project in 2018, led by the Geological Survey of Denmark and Greenland (GEUS; see also Svenneviget al. this volume). A central part of this project was to conduct a preliminary mapping of Quaternary and historical landslides in Greenland – the first effort of its kind. The main objective was to establish a landslide inventory database that can be used to identify areas prone to landslides and serve as a tool for gaining a better understanding of where, when and why catastrophic landslides take place in Greenland. This paper describes the workflow used to produce the preliminary landslide inventory of Greenland and discusses some of the initial results. To date (June 2019), I have mapped 564 landslides with the vast majority situated in the Nuussuaq Basin between Sigguup Nunaa (Svartenhuk Halvø), and Qeqertarsuaq (Disko) in West Greenland (Fig. 1). The inventory mapping is mainly based on observations and analyses of remotely sensed imagery and pre-existing geological maps. The mapping coverage was not systematic for all of Greenland, but focused on postglacial, potentially tsunamigenic landslides in inhabited coastal regions, i.e. on relatively large landslides on coastal slopes, mainly in West Greenland and small areas of East Greenland. However, smaller and inland landslides were included when they were encountered. Similarly, the less inhabited parts of Greenland were provisionally screened, but call for more thorough, systematic mapping in the future. Article in Journal/Newspaper East Greenland Greenland Nuussuaq Qeqertarsuaq Sigguup Nunaa Svartenhuk halvø GEUS Bulletin (Geological Survey of Denmark and Greenland) Greenland Karrat Fjord ENVELOPE(-53.667,-53.667,71.383,71.383) Nuussuaq ENVELOPE(-51.918,-51.918,66.626,66.626) Qeqertarsuaq ENVELOPE(-56.867,-56.867,74.400,74.400) Sigguup Nunaa ENVELOPE(-54.417,-54.417,71.833,71.833) Svartenhuk ENVELOPE(-55.861,-55.861,71.687,71.687) Geological Survey of Denmark and Greenland Bulletin 43 |
institution |
Open Polar |
collection |
GEUS Bulletin (Geological Survey of Denmark and Greenland) |
op_collection_id |
ftjgeusbullet |
language |
English |
topic |
Landslide Greenland Mapping Historical records GIS |
spellingShingle |
Landslide Greenland Mapping Historical records GIS Svennevig, Kristian Preliminary landslide mapping in Greenland |
topic_facet |
Landslide Greenland Mapping Historical records GIS |
description |
The landslide of 17 June 2017 in Karrat Fjord, central West Greenland, highlighted the need for a better understanding of landslides and landslide-generated tsunamis in Greenland and motivated a landslide screening project in 2018, led by the Geological Survey of Denmark and Greenland (GEUS; see also Svenneviget al. this volume). A central part of this project was to conduct a preliminary mapping of Quaternary and historical landslides in Greenland – the first effort of its kind. The main objective was to establish a landslide inventory database that can be used to identify areas prone to landslides and serve as a tool for gaining a better understanding of where, when and why catastrophic landslides take place in Greenland. This paper describes the workflow used to produce the preliminary landslide inventory of Greenland and discusses some of the initial results. To date (June 2019), I have mapped 564 landslides with the vast majority situated in the Nuussuaq Basin between Sigguup Nunaa (Svartenhuk Halvø), and Qeqertarsuaq (Disko) in West Greenland (Fig. 1). The inventory mapping is mainly based on observations and analyses of remotely sensed imagery and pre-existing geological maps. The mapping coverage was not systematic for all of Greenland, but focused on postglacial, potentially tsunamigenic landslides in inhabited coastal regions, i.e. on relatively large landslides on coastal slopes, mainly in West Greenland and small areas of East Greenland. However, smaller and inland landslides were included when they were encountered. Similarly, the less inhabited parts of Greenland were provisionally screened, but call for more thorough, systematic mapping in the future. |
format |
Article in Journal/Newspaper |
author |
Svennevig, Kristian |
author_facet |
Svennevig, Kristian |
author_sort |
Svennevig, Kristian |
title |
Preliminary landslide mapping in Greenland |
title_short |
Preliminary landslide mapping in Greenland |
title_full |
Preliminary landslide mapping in Greenland |
title_fullStr |
Preliminary landslide mapping in Greenland |
title_full_unstemmed |
Preliminary landslide mapping in Greenland |
title_sort |
preliminary landslide mapping in greenland |
publisher |
Geological Survey of Denmark and Greenland (GEUS) |
publishDate |
2019 |
url |
https://geusbulletin.org/index.php/geusb/article/view/4301 https://doi.org/10.34194/GEUSB-201943-02-07 |
long_lat |
ENVELOPE(-53.667,-53.667,71.383,71.383) ENVELOPE(-51.918,-51.918,66.626,66.626) ENVELOPE(-56.867,-56.867,74.400,74.400) ENVELOPE(-54.417,-54.417,71.833,71.833) ENVELOPE(-55.861,-55.861,71.687,71.687) |
geographic |
Greenland Karrat Fjord Nuussuaq Qeqertarsuaq Sigguup Nunaa Svartenhuk |
geographic_facet |
Greenland Karrat Fjord Nuussuaq Qeqertarsuaq Sigguup Nunaa Svartenhuk |
genre |
East Greenland Greenland Nuussuaq Qeqertarsuaq Sigguup Nunaa Svartenhuk halvø |
genre_facet |
East Greenland Greenland Nuussuaq Qeqertarsuaq Sigguup Nunaa Svartenhuk halvø |
op_source |
GEUS Bulletin; Vol. 43 (2019): Review of Survey activities 2018 2597-2154 2597-2162 10.34194/geusb.v43 |
op_relation |
https://geusbulletin.org/index.php/geusb/article/view/4301/10053 https://geusbulletin.org/index.php/geusb/article/view/4301/10535 https://geusbulletin.org/index.php/geusb/article/view/4301/10536 https://geusbulletin.org/index.php/geusb/article/view/4301/10177 https://geusbulletin.org/index.php/geusb/article/view/4301 doi:10.34194/GEUSB-201943-02-07 |
op_doi |
https://doi.org/10.34194/GEUSB-201943-02-07 https://doi.org/10.34194/geusb.v43 |
container_title |
Geological Survey of Denmark and Greenland Bulletin |
container_volume |
43 |
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1766399554232516608 |