| Author(s) | Mohammed Abdullah AI-Saleh |
| Affiliation | A.uociate ProfessOI; Department (!fGeography, College (if Arts, King Saud University, Riyadh. Saudi Arabia |
| Title | The Application of Landsat-TM Enhanced Images and Topographic Maps for MorphometricAnalysis in Wadi Muzayriah and Wadi Inan, Central Saudi Arabia |
| Source | Journal of King Saud University. Arts. Volume 11, No 2. (1999/1419) |
| Abstract | Two relatively small basins were chosen for this study which are Wadi Inan in the Arabian Shield (igneous and metamorphic rocks) and Wadi Muzayriah in the Arabian Shelf (sedimentary rocks). Landsat The-matic Mapper data were utilized for digital analysis in order to arrive at the optimum enhancement techniques for delineating stream networks in the studied basins. More than 30 enhanced images were generated for visual interpretation. Images of Band 7 and ratio 4/3 were found to be useful for delineating stream networks in Wadi Muzayriah and in Wadi Inan respectively. The two images were produced in the form of photographic prints at a scale of I: 100000 and used for morphomeric analysis. Stream networks delineated from these images show substantial differences from stream networks demarcated from the I :50000 topographic maps. The topographic maps depict only some of the streams shown on the enhanced images. Therefore, the use of map evidence alone could lead to erroneous conclusions. |
