GreenMetric ranking calculation by using satellite imageries: A Case Study from Türkiye

Abstract

GreenMetric (GM) is universally used to determine the sustainability levels of universities. In this study, it is recommended to use satellite imageries in calculating the scores of the setting and infrastructure category, which is the first category of GM. Also, it is suggested to use thematic maps derived from satellite imageries as evidence presented to the system for the calculated scores. For this purpose, a Sentinel-2B satellite image of the Tokat Gaziosmanpasa University Tasliciftlik Campus area from Turkey was exposed to digital image processing techniques to derive statistical values regarding greenery. Score calculations were made by using numerical information derived from the satellite image, and the values of the attributes such as population on the campus. Based on these data and information, the total score of the setting and infrastructure category was calculated as 925, and those officially claimed was 825. Considering the controversial evidence presented to the GM system for the first category, it has been determined that thematic maps are more consistent and reliable. The results proved that the use of satellite imagery in calculations for the first category of GM could set a standard.