Spatial mapping of tropical landslides area using LiDAR (6938) |
| Siti Nur Afiqah Aman and Zulkiflee Abd Latif (Malaysia) |
Dr Zulkiflee Abd Latif
Senior Lecturer
Universiti Teknologi MARA
Faculty of Architecture, Planning & Surveying
Shah Alam
40450
Malaysia
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| Corresponding author Dr Zulkiflee Abd Latif (email: zabdlatif[at]gmail.com, tel.: +60173975497) |
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| [ abstract ] [ paper ] [ handouts ] |
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Published on the web 2014-03-21
Received 2013-11-15 / Accepted 2014-02-06 |
| This paper is one of selection of papers published for the FIG Congress 2014 in Kuala Lumpur, Malaysia and has undergone the FIG Peer Review Process. |
FIG Congress 2014
ISBN 978-87-92853-21-9 ISSN 2308-3441
http://www.fig.net/resources/proceedings/fig_proceedings/fig2014/index.htm
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Abstract |
| Landslide occurrence depends on various interrelating factors which consequently initiate to massive mass of soil and rock debris that move downhill due to the gravity action. LiDAR has come with a progressive approach in mitigating landslide by permitting the formation of more accurate DEM compared to other active space-borne and airborne remote sensing techniques.The objective of this research is to assess landslide susceptibility in Ulu Klang area by investigating the correlation between past landslide events with geo environmental factors. A high resolution LiDAR DEM was constructed to produce topographic attributes such as slope, curvature and aspect. These data were utilized to derive second deliverables of landslide parameters such as topographic wetness index (TWI), surface area ratio (SAR) and stream power index (SPI). A probabilistic based likelihood ratio model was applied to establish the spatial relationship between the landslide locations and each landslide related factor. Factor ratings were summed up to obtain Landslide Susceptibility Index (LSI) to construct the landslide susceptibility map |
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| Keywords: Geoinformation/GI; Laser scanning; Remote sensing; Spatial planning; Landslides |
