Master Degree / Yüksek Lisans Tezleri
Permanent URI for this collectionhttps://hdl.handle.net/11147/3008
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Master Thesis Assessment of Spatial Temporal Variability of Urban Heat Island Effect: a Case Study in the Central Districts of İzmir(01. Izmir Institute of Technology, 2024) Ay, Filiz; Kurt, Deniz Gerçek; 01. Izmir Institute of TechnologyThe rapid increase in urban population leads to changes in land use/land cover (LULC) and environmental problems such as Urban Heat Islands. Temperatures in cities being higher than their rural surroundings is a climatic phenomenon known as Urban Heat Island (UHI). Besides direct measurements of air temperature, Land Surface Temperature (LST) that characterizes Surface Urban Heat Island (SUHI) is widely used to determine the impact of UHI. This study aims to determine the spatial/temporal variability of the SUHI effect in the central districts of İzmir for the years 1990, 2000, 2006, 2012, and 2018. Landsat satellite images were used for LST, Normalized Difference Vegetation Index (NDVI), Normalized Difference Water Index (NDWI), Normalized Difference Building Index (NDBI), Urban Index (UI), and albedo, while the CORINE land cover dataset was used for LULC maps. In the study, the relationship between LST and LULC, and spectral indices was analyzed using zonal statistics, correlation, and regression analyses. In 2018, the highest LST values were observed for pastures, industry, commercial areas, transportation units, and mines, respectively. There is a high positive correlation between LST and NDBI, UI, Albedo, and a negative correlation with NDVI, respectively, while there is a moderate positive correlation with NDWI. In the regression model, 60.4% of the variability of the dependent variable is explained by NDBI and NDVI. NDBI (71.3%) and NDVI (7.6%) indices were the most effective factors on SUHI formation. The SUHI effect was more comprehensively evaluated across five different regions adding built-up indices into the variable set. It is concluded that the changes in LST values, together with the built environment indices, are largely influenced by changes in LULC.Master Thesis Climate Neutrality in Local Municipalities' Action Plans: İzmir Case(01. Izmir Institute of Technology, 2024) Cihan, Ayşe Melike; Şenol, Fatma; Şenol, Fatma; 02.03. Department of City and Regional Planning; 02. Faculty of Architecture; 01. Izmir Institute of TechnologyThis thesis investigates the integration of climate neutrality within the action plans of local municipalities, focusing on the relationship between these plans and the actions proposed to achieve climate neutrality in the literature. Addressing the uncertainty surrounding the commitment of local municipalities to climate neutrality and the effectiveness of their actions, the study aims to provide insights for enhancing the efficacy of policies and strategies for climate neutrality at the local level. Through a comprehensive literature review and a case study approach focusing on İzmir Metropolitan Municipality in Turkey, the research develops a checklist for evaluating local action plans, with a particular emphasis on mitigation and adaptation measures. Utilizing this checklist, the study assesses the alignment of the İzmir Sustainable Energy and Climate Action Plan (SECAP) and the Green City Action Plan (GCAP) with climate neutrality principles. The evaluation methodology involves scoring each plan based on the presence or absence of specific actions related to climate neutrality criteria, providing both quantitative findings and qualitative insights into the plans' relationship with climate neutrality actions in the literature. This research contributes to understanding how local municipalities prioritize climate neutrality in their efforts to address climate change and offers recommendations for improving the integration of climate neutrality principles into local policies and action.Master Thesis Climate Sensitive Design Approach To Reduce the Urban Heat Island Effect: Case of Poligon Stream and Its Surroundings, İzmir(2023) Saygın, Nicel; Saygın, Nicel; 02.03. Department of City and Regional Planning; 02. Faculty of Architecture; 01. Izmir Institute of TechnologyClimate change, destruction of the natural environment, high-rise buildings, intense urbanization, and high energy consumption are increasingly making urban living challenging. Climate change triggers this situation, creating an increased urban heat island effect. Outdoor thermal comfort is crucial for pedestrian health in urban areas. The growing heat island effect due to climate change leads to thermal comfort issues in cities, negatively affecting urban life. Different urban forms within cities provide different microclimatic comfort zones for pedestrians. We must adapt urban planning to climate conditions from macro to micro scales with a holistic perspective. This study examines how the heat island effect in the Poligon Stream, and its surrounding area can be reduced using a climate-sensitive design approach. The main purpose of this study is to enhance the urban microclimate around the Poligon Stream by proposing design solutions at various scales to mitigate the urban heat island effect. To calculate land surface temperature and the heat island effect, satellite data from the hottest day of the year 2022 was utilized. Wind and thermal comfort models were developed using meteorological data such as air temperature, global radiation, wind speed, and relative humidity. The morphological structure of the study area, along with the analysis results of meteorological parameters and land surface temperature, indicates that the cooling capacity in the district is considerably low. Due to the heat island effect, urban life reaches levels that adversely affect living conditions in the summer months. Resulting in substantial, sustainable urban design proposals, focusing on ecological, nature-based, and climate-sensitive approach, were developed, resulting in a 13% reduction in the urban heat island effect.