The utilization of orthophoto multitemporal to detect spatial change of Green Open Space at the green campus (Research Location: University Of Lampung)

Abstract

Lampung University is one of the Indonesian universities that is committed to achieving sustainable green campus environmental management. The University of Lampung was ranked 15th in the UI Green Metric award in 2021. On the other side, infrastructure building to support the education tri-dharma process is still ongoing. Development impact will decrease green open space (GOS). The UAV has several advantages such as simple operation, high accuracy, and efficiency. The objective of this research is to evaluate the availability and changes of green open space at Lampung University from 2019 to 2022. Multitemporal data of orthophoto 2019 and 2022 were used. The method in this research used visual interpretation, classification, and overlay to get information about green open space areas and changes. Research results showed that the availability of green open space at the University of Lampung in 2019 was 32.45 hectares (39.82%), and in 2022 it was 29.33 hectares (35.99%). The change of green open space at the university campus from 2019 to 2022 decreased by 3.12 Ha.