TEMPORAL LANDSLIDE SUSCEPTIBILITY ASSESSMENT USING LANDSLIDE DENSITY TECHNIQUE
In this study, a temporal landslide assessment was carried out in a landslide prone areaalong the RanauTambunan road in Sabah, Malaysia. The assessment was based on landslides interpreted from 1978 and 1994 aerial photographs and also from fieldworks which were done in 2009 and 2011. A total of 148...
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Format: | Article |
Language: | English |
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Zibeline International
2017-01-01
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Series: | Geological Behavior |
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Online Access: | https://geologicalbehavior.com/archives/2gbr2017/2gbr2017-10-13.pdf |
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author | NNorbert Simon, NNorbert Simon, Goh Thian Lai |
author_facet | NNorbert Simon, NNorbert Simon, Goh Thian Lai |
author_sort | NNorbert Simon, |
collection | DOAJ |
description | In this study, a temporal landslide assessment was carried out in a landslide prone areaalong the RanauTambunan road in Sabah, Malaysia. The assessment was based on landslides interpreted from 1978 and 1994
aerial photographs and also from fieldworks which were done in 2009 and 2011. A total of 148 landslides were
recorded from those four years with 24, 47, 56 and 21 landslides respectively for the year 1978, 1994, 2009 and
2011. Based on these landslides, a landslide density map was produced for each year which consist of three
classes; low (1 landslide/km2); moderate (2-3 landslides/km2); and high (≥ 4 landslides/km2). Based on the
combination of landslides occurred throughout the assessment years, 22 sections of the road were indicated to
have high landslide density. Intersection with high lineament density zone shows that 16 of the high landslide
density areas are located inside within the high lineament density zone. From both of these maps, a landslide
susceptibility map was generated. Landslide records acquired from aerial photographs captured in 2005 was
use to validate the map. The validation result shows that 83% of the total landslides in 2005 are within the high
susceptibility zone and this value indicates that the accuracy of the susceptibility map is acceptable. The high
susceptibility zone in the study area can be categorized as ‘highly susceptible’ with moderate hazard based on
the International guideline on susceptibility and hazard zonation. In terms of landslide density, it is expected
that 5.4 landslides can be observed for every km2 in the high susceptibility zone. |
first_indexed | 2024-12-10T19:11:52Z |
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id | doaj.art-0913710f04da43fe98e1de45ddc92c47 |
institution | Directory Open Access Journal |
issn | 2521-0890 2521-0491 |
language | English |
last_indexed | 2024-12-10T19:11:52Z |
publishDate | 2017-01-01 |
publisher | Zibeline International |
record_format | Article |
series | Geological Behavior |
spelling | doaj.art-0913710f04da43fe98e1de45ddc92c472022-12-22T01:36:42ZengZibeline InternationalGeological Behavior2521-08902521-04912017-01-0112101310.26480/gbr.02.2017.10.13TEMPORAL LANDSLIDE SUSCEPTIBILITY ASSESSMENT USING LANDSLIDE DENSITY TECHNIQUENNorbert Simon,NNorbert Simon,Goh Thian LaiIn this study, a temporal landslide assessment was carried out in a landslide prone areaalong the RanauTambunan road in Sabah, Malaysia. The assessment was based on landslides interpreted from 1978 and 1994 aerial photographs and also from fieldworks which were done in 2009 and 2011. A total of 148 landslides were recorded from those four years with 24, 47, 56 and 21 landslides respectively for the year 1978, 1994, 2009 and 2011. Based on these landslides, a landslide density map was produced for each year which consist of three classes; low (1 landslide/km2); moderate (2-3 landslides/km2); and high (≥ 4 landslides/km2). Based on the combination of landslides occurred throughout the assessment years, 22 sections of the road were indicated to have high landslide density. Intersection with high lineament density zone shows that 16 of the high landslide density areas are located inside within the high lineament density zone. From both of these maps, a landslide susceptibility map was generated. Landslide records acquired from aerial photographs captured in 2005 was use to validate the map. The validation result shows that 83% of the total landslides in 2005 are within the high susceptibility zone and this value indicates that the accuracy of the susceptibility map is acceptable. The high susceptibility zone in the study area can be categorized as ‘highly susceptible’ with moderate hazard based on the International guideline on susceptibility and hazard zonation. In terms of landslide density, it is expected that 5.4 landslides can be observed for every km2 in the high susceptibility zone.https://geologicalbehavior.com/archives/2gbr2017/2gbr2017-10-13.pdflandslidestemporallandslide densitylandslide susceptibilityRanau-Tambunan |
spellingShingle | NNorbert Simon, NNorbert Simon, Goh Thian Lai TEMPORAL LANDSLIDE SUSCEPTIBILITY ASSESSMENT USING LANDSLIDE DENSITY TECHNIQUE Geological Behavior landslides temporal landslide density landslide susceptibility Ranau-Tambunan |
title | TEMPORAL LANDSLIDE SUSCEPTIBILITY ASSESSMENT USING LANDSLIDE DENSITY TECHNIQUE |
title_full | TEMPORAL LANDSLIDE SUSCEPTIBILITY ASSESSMENT USING LANDSLIDE DENSITY TECHNIQUE |
title_fullStr | TEMPORAL LANDSLIDE SUSCEPTIBILITY ASSESSMENT USING LANDSLIDE DENSITY TECHNIQUE |
title_full_unstemmed | TEMPORAL LANDSLIDE SUSCEPTIBILITY ASSESSMENT USING LANDSLIDE DENSITY TECHNIQUE |
title_short | TEMPORAL LANDSLIDE SUSCEPTIBILITY ASSESSMENT USING LANDSLIDE DENSITY TECHNIQUE |
title_sort | temporal landslide susceptibility assessment using landslide density technique |
topic | landslides temporal landslide density landslide susceptibility Ranau-Tambunan |
url | https://geologicalbehavior.com/archives/2gbr2017/2gbr2017-10-13.pdf |
work_keys_str_mv | AT nnorbertsimon temporallandslidesusceptibilityassessmentusinglandslidedensitytechnique AT nnorbertsimon temporallandslidesusceptibilityassessmentusinglandslidedensitytechnique AT gohthianlai temporallandslidesusceptibilityassessmentusinglandslidedensitytechnique |