Master Degree / Yüksek Lisans Tezleri

Permanent URI for this collectionhttps://hdl.handle.net/11147/3008

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Now showing 1 - 4 of 4
  • Master Thesis
    Assessment of Groundwater Potential Using Geographic Information System Based Multi Criteria Decision Analysis Methods: Case Study of Panj Amu River Basin, Afghanistan
    (01. Izmir Institute of Technology, 2024) Abhar, Mohammad Tarıq; Demirkesen, Ali Can; Baba, Alper
    Afghanistan, where water is the most important resource for energy production and the economy. The country still struggles with access to clean drinking water, and its main supply of drinking water comes from groundwater. Unfortunately, not much is known about the country's groundwater system. The assessment of groundwater potential and groundwater stability is crucial for sustainable water management, agricultural development, urban and rural water supply, and disaster mitigation. It supports environmental protection, economic development, public health, and conflict prevention by ensuring reliable and sustainable access to groundwater resources. In regions such as the Panj Amu River Basin, this identification is particularly important due to the high dependence on groundwater. Therefore, the thesis focuses on water budget, groundwater potential, availability, and the impact of various parameters on groundwater recharge of the PARB using the Analytical Hierarchy Process (AHP), Frequency Ratio (FR) and Evidential Belief Function (EBF) methods. Ten thematic layers including precipitation, geology, lineament density, drainage density, soil texture, land use and land cover, topographic wetness index, curvature, normalized difference vegetation index and slope gradient were used as influencing factors along with groundwater static level data, runoff and evapotranspiration for this research work. All geographic datasets were analyzed using the ArcMap environment and the required spatial data were obtained from various approved relevant online sources. The water balance analysis for the Panj Amu River Basin indicates that 1.887 billion cubic meters' infiltrates into the groundwater system annually. The total annual groundwater consumption by humans, livestock and agricultural activities amounts to 808.19 million cubic meters. Consequently, the annual net groundwater budget in the basin is 1.078 billion cubic meters, suggesting that the groundwater system in the PARB is currently sustainable. All three methods indicate high groundwater potential in sparsely v populated mountainous regions with high rainfall and permeable geology and soil conditions. The key regions include the northeast of Takhar, the east and southeast of Baghlan and the northwest and east (some parts of the Wakhan corridor) of Badakhshan have high groundwater potential. In general, the Panj Amu River Basin has moderate groundwater potential. Area Under the Curve (AUC) and Receiver Operating Characteristic (ROC) analysis were used to validate the study. The results show that the EBF methods has the highest efficiency with an AUC of 92.6%, followed by the FR method with 91.5% and the AHP model with 80.2%.
  • Master Thesis
    Gis-Based Determination of Suitable Agricultural Areas and Comparison With Current Land Use, the Case Study of İzmir
    (Izmir Institute of Technology, 2022) Ekinci, Özge; Demirkesen, Ali Can
    Agricultural production is the main source of life for humanity. In order to the protection and proper use of agricultural lands are of great importance. İzmir has a high potential in terms of agricultural areas. There are three basin areas within the provincial borders and fertile agricultural areas where the continuity of agricultural production can be ensured. With the effect of urbanization and population growth, the settlements expanded towards agricultural areas. For the correct use, sustainability and efficiency of agricultural lands, the most suitable areas in terms of agricultural production should be analyzed correctly. This study was carried out to determine the most suitable areas for agriculture in İzmir. The study considers a Geographic Information System GIS-based approach. The combination of multi-criteria decision analysis (MCDA) and GIS can be used in the process of generating solutions for complex planning problems. In the first stage of the study, the criteria were weightlessly overlayed, and a result map was obtained. In the second stage, weights were obtained for each criterion using the Analytical Hierarchy Process (AHP). Suitability analyzes for the study area were obtained by weighted overlay analysis using GIS. Environmental characteristics, soil characteristics and economic factors were taken into account while performing the suitability analysis for agricultural areas. The same criteria were used for both suitability analyses. As a result of the comparison between the two maps, a resultant map obtained by the weighted overlay method was found to be more reliable, and the results were compared with the current situation. In the current situation comparison, Great Lowland Protection Areas, 1/100000 Scaled Environmental Plan, and Law No. 5403 are discussed. When the comparisons were made, the areas that differed with the current situation were determined. It is seen that the agricultural lands obtained as a result of the suitability analysis are spread over wider areas compared to the current situation.
  • Master Thesis
    An Assessment of Spatial Relationship Between Lung Cancer Incidence Rate and Quality of Urban Life: Izmir Case
    (Izmir Institute of Technology, 2013) Özkan, Sevim Pelin; Saygın, Mustafa Ömür
    The study assesses spatial clusters of lung cancer incidences within Izmir province on the basis of districts and also neighborhood using an objective sets of quality of life indicators. Lung cancer data, approximately 18.000 cases, were acquired from the Izmir Cancer Registry Center (ICRC) between the years of 1992-2007. Cases have been confirmed in terms of accuracy by World Health Organization (WHO). As objective indicator data, point source air pollution data acquired from the Izmir Metropolitan Municipality database between the years of 1993-2007. Besides, socio-economic statistics data were obtained from Turkish Statistical Institute (TSI) regional indicators (2000,2007) and Izmir Metropolitan Municipality city health profile (2007). The datasets were used to determine whether there is a significant spatial relationship between cancer case density and environmental contamination. This thesis uses spatial statistical models and Geographical Information System (GIS) techniques to analyze population-based cancer incidence rate. Additionally, Age Standardized Incidence (ASR) of the lung cancer was calculated. Spatial autocorrelation technique was performed to investigate local distribution of lung cancer. Results of the study suggest that spatial clusters of lung cancer were detected in geographic locations with low level environmental quality and high level socio-economic profile. Then, the results are discussed in terms of life quality and environmental quality of Izmir. The results of this study are useful for interdisciplinary researchers, epidemiological studies, policymakers and governmental agencies in terms of health and environmental assessment, regulation and control of spatial strategies.
  • Master Thesis
    A Cad-Based Modeling for Dynamic Visualization of Urban Environments in Piecemeal (incremental) Growth
    (Izmir Institute of Technology, 2002) Alper, Sabri; Serim, Muharrem Erkal
    Visualization is inherent to the conduct of urban design as a direct connection between the designer and three dimensional reality of urban settlements. Visualization of urban environments and urban design projects is vital, since most designers prefer to understand place and context through visualization. The reasons for visualization in urban design can be classified under three headings: .visual thinking, design communication and testing mechanism. Digital revolution. has improved computer use in urban design, as in many other fields. Dynamic computer models can present an ideal environment to visualize the change in respect to time. Digital tools are much more efficient than conventional methods in explaining the growth and change of urban environments. Especially, incremental growth requires features not found in .static/analog. media. Christopher Alexander and his colleagues, in their book .A New Theory of Urban Design., tried to justify their ideas about piecemeal growth by an experiment. The analog methods, such as physical models, two-dimensional diagrams, have been used to conduct the experiment and to convey their ideas about the design process. This thesis tries to produce a .dynamic/digital. model that could be utilized in their experiment instead of static/analog methods. Spatial data should be considered as dynamic, or changing identities rather than as simple, static features. Time is an example of a dynamic component of a spatial data set. Recent technological developments are increasing computer hardware and software capabilities so that this dynamic aspect of data can be accounted for by today.s systems. Dynamic data have not been a great concern in digital technologies for many years, but today changing patterns and dimensions are becoming more important.