Özet:

Blue green infrastructure (BGI) reduces the high temperatures associated with climate change and the urban heat island effects. This study aimed to determine the effect of BGI on land surface temperature (LST) in Karsiyaka district, İzmir. The surface temperatures of the study area for the summer months of 2022 (June, July, and August) were calculated with the LST index using Landsat 8 satellite images. The associated heat island effect was obtained with the heat field intensity index (HFI). The cooling effects of the 100, 200 and 300 meters buffer zones of sample BGI areas that have different characteristics were calculated using the park cooling intensity. Results determined that high-temperature areas are predominant throughout the city. The maximum average surface temperature is calculated at 46.66 °C, and minimum average surface temperature is calculated at 29.59 °C in Karsiyaka for summer months in Karsiyaka . The highest cooling effect was calculated as 1.16 °C, 1.42 °C, 2.17 °C in the 100 m, 200 m, and 300 m buffer zones, respectively, with the lowest values 0.23 °C, 0.14 °C and 0.17 °C. Blue green infrastructure units with dense canopy cover created high cooling effects. It was determined that among the sample units open spaces with little or no vegetation (sample 2 and 7) did not have cooling.

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