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3-D GIS, using digital elevation data with powerful analytical software, and the power of today's computer hardware can provide a true-to-scale solid geometrical model of the earth. Though nrelatively new, 3-D GIS has found applications in many fields, such as military applications (strategic planning); road engineering (cut/fill analysis); mining (volumetric pile/pit evaluation); landscape planning; urban design; pipeline routing; broadcast tower positioning; etc. Yo create true-to-scale representations of the country's terrain features for analytical purposes, the terrain heights of Qatar have been sampled and stored in digital files These 3-D GIS renditions were generated using the digital elevation model (DEM) and other data sets available from CGIS. |
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A Physiographic Map of Dukhan showing terrain
elevation classifid by color zones. Green shades
for the low, brown shades for the medium and grey
shades for the high zones. Red lines indicate sharp
discontinuity of slope. |
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A 3-D earth model of the same area with an overlay of the corresponding ortho image, depicting a bird's eye view of Dukhan. | ||
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