Using DEM and GIS for evaluation of groundwater resources in relation to landforms in the Maharlou-Bakhtegan watershed, Fars province, Iran
| Autor: | Marzieh Mokarram, Mehran Shaygan, Dinesh Sathyamoorthy |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Environmental Engineering
Watershed compound topographic index (CTI) 010504 meteorology & atmospheric sciences Relation (database) Geography Planning and Development Maharlou-Bakhtegan lcsh:River lake and water-supply engineering (General) 010501 environmental sciences Development 01 natural sciences geographic information system (GIS) groundwater 0105 earth and related environmental sciences Water Science and Technology lcsh:TC401-506 geography geography.geographical_feature_category Landform business.industry Agricultural and Biological Sciences (miscellaneous) Landscape architecture topographic position index (TPI) Groundwater resources landforms Water resource management business digital elevation model (DEM) |
| Zdroj: | Journal of Water and Land Development, Vol 37, Iss 1, Pp 121-126 (2018) |
| ISSN: | 2083-4535 |
| DOI: | 10.2478/jwld-2018-0031 |
| Popis: | The study of groundwater resources in relation to topography is important. Clearly, in different topography, depth of the water level is different. Therefore, the aim of this study is the determination of the relationship between landform classes with compound topographic index (CTI) and depth of the water for the Maharlou-Bakhtegan watershed, Fars Province, Iran. In order to evaluate the depth of the water for the study area, CTI and geomorphology (landforms) were derived from a Shuttle Radar Topography Mission (SRTM) digital elevation model (DEM). The results of landform classes extracted using topographic position index (TPI) showed that the largest landform is open slope, while the smallest are plains. It was found that CTI and depth of the water values are high in plain classes, while they are low in local ridges. High depth of the water were found to be mostly confined to the pit regions in the plain landform, because groundwater recharge occurs in the zones where standing water remains for sufficient long period of time and has favourable condition for recharge. |
| Databáze: | OpenAIRE |
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