Mohammad Firuz Ramli, Wan Nor Azmin Sulaiman, Mohd Kamil Yusoff, Yoke Yee Low and Mohamad Abd. Manap
The primary aim of this research is to investigate the application of open source geographic information system software, geographical resources analysis support system (GRASS…
Abstract
Purpose
The primary aim of this research is to investigate the application of open source geographic information system software, geographical resources analysis support system (GRASS) for landslide hazard assessment.
Design/methodology/approach
Five parameters affecting landslide occurrence derived from topographical, geological and land use maps of Cameron highland were used for the assessment.
Findings
The results showed that about 93 percent of the study area falls under zone II that is of low hazard, with less than 7 percent on zone III with moderate hazard and only less than 1 percent falls under zone IV, which is of high hazard.
Research limitations/implications
The accuracy of the landslide hazard map needs to be assessed by cross‐correlation with landslide occurrence in the field.
Practical implications
The map produced showed the potential application of GRASS as a tool for producing landslide hazard assessment map.
Originality/value
The major outcome of this research is the possible use of open source GIS software in the application of landslide hazard assessment. The capability of GRASS in performing such environmental assessment will certainly attract many researchers and organizations with limited budgets, especially in developing countries such as Malaysia.
Details
Keywords
Mohamad Abd Manap, Mohammad Firuz Ramli and Ghufran Redzwan
The purpose of this paper is to utilise the interactive view capability of the geographical information system (GIS) for the geological interpretation in Klang Valley, Malaysia.
Abstract
Purpose
The purpose of this paper is to utilise the interactive view capability of the geographical information system (GIS) for the geological interpretation in Klang Valley, Malaysia.
Design/methodology/approach
Topographical map scale of 1:10 000 was used to generate digital elevation model (DEM). The geological map was draped over the DEM to create a 3D perspective view. The geological interpretation was undertaken using the 3D capability of the GIS software.
Findings
From the study, five lineaments which could possibly be the newly identified faults and one lithological boundary have been delineated.
Research limitations/implications
Although these findings need to be rechecked in the field, they show the capability of the DEM application in structural geology interpretation.
Practical implications
The results obtained from this study demonstrate the capability of utilising a geological map draped over DEM for structural geological interpretation. Thus the technique may increase the interpretation accuracy.
Originality/value
The major outcome of this research is the possible use of DEM in the application of geological study.