A GIS method for assessment of rock slide tsunami hazard in Norwegian lakes and reservoirs
An evaluation of rock slide tsunami hazard is applied to all Norwegian lakes larger than 0.1 km2 based on their topographical setting. The analysis results in a topographic rock slide potential score that indicates the relative hazard in each lake. Even though the score value each lake receives shou...
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ftngicom:oai:brage.bibsys.no:11250/2375285 2023-05-15T17:43:33+02:00 A GIS method for assessment of rock slide tsunami hazard in Norwegian lakes and reservoirs Romstad, Bård Harbitz, Carl B. Domaas, Ulrik 2009 http://hdl.handle.net/11250/2375285 eng eng http://www.nat-hazards-earth-syst-sci.net/9/353/2009/ Natural hazards and earth system sciences 2009, 9(2):353-364 urn:issn:1684-9981 http://hdl.handle.net/11250/2375285 cristin:345394 Flodbølger / Flood waves Tsunami / Tsunami Journal article 2009 ftngicom 2018-09-20T09:19:47Z An evaluation of rock slide tsunami hazard is applied to all Norwegian lakes larger than 0.1 km2 based on their topographical setting. The analysis results in a topographic rock slide potential score that indicates the relative hazard in each lake. Even though the score value each lake receives should be interpreted with caution, the distribution of score values shows that we are able to make a clear distinction between lakes with a high vs. lakes with a low hazard. The results also show a clustering of threatened lakes in parts of Western Norway as well as some locations in Northern Norway. This makes the results useful as a tool for focusing further studies on regions or specific lakes that received high scores. The results also show how the method may be used for more detailed analysis of a given lake (or fjord). Maps can be produced that may serve as a guide when carrying out field campaigns or when designing scenarios for numerical simulations of tsunamis in the lake. It should be emphasised that the rock slide potential reported for each lake is based on the topographical setting alone and hence, does not represent the actual probability of rock slides into the lakes. For a given area, more detailed investigations of the geology, triggering factors and frequency of previous rock slide events should be carried out before definite statements about the actual hazard can be made. Article in Journal/Newspaper Northern Norway Unknown Norway |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftngicom |
language |
English |
topic |
Flodbølger / Flood waves Tsunami / Tsunami |
spellingShingle |
Flodbølger / Flood waves Tsunami / Tsunami Romstad, Bård Harbitz, Carl B. Domaas, Ulrik A GIS method for assessment of rock slide tsunami hazard in Norwegian lakes and reservoirs |
topic_facet |
Flodbølger / Flood waves Tsunami / Tsunami |
description |
An evaluation of rock slide tsunami hazard is applied to all Norwegian lakes larger than 0.1 km2 based on their topographical setting. The analysis results in a topographic rock slide potential score that indicates the relative hazard in each lake. Even though the score value each lake receives should be interpreted with caution, the distribution of score values shows that we are able to make a clear distinction between lakes with a high vs. lakes with a low hazard. The results also show a clustering of threatened lakes in parts of Western Norway as well as some locations in Northern Norway. This makes the results useful as a tool for focusing further studies on regions or specific lakes that received high scores. The results also show how the method may be used for more detailed analysis of a given lake (or fjord). Maps can be produced that may serve as a guide when carrying out field campaigns or when designing scenarios for numerical simulations of tsunamis in the lake. It should be emphasised that the rock slide potential reported for each lake is based on the topographical setting alone and hence, does not represent the actual probability of rock slides into the lakes. For a given area, more detailed investigations of the geology, triggering factors and frequency of previous rock slide events should be carried out before definite statements about the actual hazard can be made. |
format |
Article in Journal/Newspaper |
author |
Romstad, Bård Harbitz, Carl B. Domaas, Ulrik |
author_facet |
Romstad, Bård Harbitz, Carl B. Domaas, Ulrik |
author_sort |
Romstad, Bård |
title |
A GIS method for assessment of rock slide tsunami hazard in Norwegian lakes and reservoirs |
title_short |
A GIS method for assessment of rock slide tsunami hazard in Norwegian lakes and reservoirs |
title_full |
A GIS method for assessment of rock slide tsunami hazard in Norwegian lakes and reservoirs |
title_fullStr |
A GIS method for assessment of rock slide tsunami hazard in Norwegian lakes and reservoirs |
title_full_unstemmed |
A GIS method for assessment of rock slide tsunami hazard in Norwegian lakes and reservoirs |
title_sort |
gis method for assessment of rock slide tsunami hazard in norwegian lakes and reservoirs |
publishDate |
2009 |
url |
http://hdl.handle.net/11250/2375285 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Northern Norway |
genre_facet |
Northern Norway |
op_relation |
http://www.nat-hazards-earth-syst-sci.net/9/353/2009/ Natural hazards and earth system sciences 2009, 9(2):353-364 urn:issn:1684-9981 http://hdl.handle.net/11250/2375285 cristin:345394 |
_version_ |
1766145658675265536 |