Electronic Journal of Geotechnical Engineering, Vol. 15, 2010
Omar Al-Kouri, Husaini Omar, Mohammed Abu-Shariah, Ahmad Rodzi Mahmu, and Shattri Mansor
“Nowadays, geographical information system (GIS) and remote sensing are emerging as powerful techniques widely applicable in natural resource management and development virtual models. Recent developments in remote sensing, aerial photography and GIS make it possible to detect changes and devise strategies based on these changes. The study focuses on using aerial photography for the detection of changes and effects of mining on geomorphology using the ArcGIS9 extension, Geostatistical Analyst. In addition, the distinctive surface topography of karst landscapes can be characterized in order to compare them with non-karst landscapes, and to determine geological and/or climatic conditions that are responsible for the observed terrain of Kinta Valley Limestone formation at Perak, Malaysia. Geostatistical analyses of the karstic terrain are used in order to distinguish between karst and non-karst area and karst area to observe the variation from the deterministic sample. In contrast, if the range is less, that means the average distance between two points that are similar in height is less and therefore there is more variation in the area. The average range for karst area is 435, while the average range for non-karst area is 690 meters. The difference between the major range and minor range which indicates the degree of anisotropy is more for the karst area and this is an indicator of more variation in spatial structure and autocorrelation of the karst elevation.”
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