Akademik Veri Yönetim Sistemi
11TH INTERNATIONAL EUROPEAN CONGRESS ON ADVANCED STUDIES IN BASIC SCIENCES , Rome, İtalya, 11 - 13 Kasım 2024, ss.301, (Özet Bildiri)
Water surfaces, especially urban lakes, rivers, artificial ponds, and other water bodies, play a critical role in mitigating the urban heat island (UHI) effect. This study aims to understand the impact of the pressured Küçükcekmece Lake on the urban temperature and to examine the relationship between some environmental factors and LST calculated using various indices. In this study, land surface temperature (LST), Normalized Difference Vegetation Index (NDVI), Normalized Difference Built-up Index (NDBI), and Normalized Difference Water Index (NDWI) of Küçükçekmece Lake and surrounding areas were investigated. Within the scope of the study, buffer zones were created at different distances from the lake (100 m, 300 m, 500 m, 900 m, 1500 m, 2000 m, 3000 m), and LST, NDVI, NDBI, and NDWI values were calculated for these zones. Using satellite data for 1984, 1994, 2004, 2014, and 2024, it was investigated how these variables changed over the years and how they affected the areas around the lake. In our study, satellite data were analyzed using ArcGIS 10.3 software. Generally, LST values have increased by 22% from 1984 to 2024. LST followed an increasing trend with increasing distance from the lake. The cooling effect of the water surface is more pronounced around the lake but is especially felt up to a distance of 3000 m. As we move away from the lake, NDVI values decrease. With the increase in urban construction in recent years, a significant increase in NDBI values has been observed. Especially at distances of 1500 m and further, the effect of urban construction is dominant. A negative correlation was found between LST and NDVI and NDWI, while a positive correlation was found between LST and NDBI. Our study provides important information on environmental impacts by analyzing changes over time. The findings revealed the temperature increases in urban areas, vegetation changes, and the effects of water surfaces. In this respect, the study's findings can guide local governments and decision-makers in environmental management policies. From another perspective, it is envisaged that this study will contribute to social sustainability by monitoring water resources and the environment, ensuring the efficient use and protection of water.