Lake Meke Drought Analysis Between 2017-2021 With Planet Multispectral Data

Abstract

The city of Konya is experiencing intense drought stress and feels the threat of desertification most intensely. Due to the uncontrolled use of water resources and irregular precipitation regime, Karapınar and its surroundings faced the danger of desertification in a short time. Lake Meke, which has been facing drought for many years, has been the subject of remote sensing research in recent years, with the widespread use of high-resolution satellite data. In this study, the temporal variation of Lake Meke between 2017 and 2021 for March was determined using 3 m spatial resolution multispectral Planetscope data. Wetland changes were determined using the Normalized Difference Water Index (NDWI) for each year of wetland boundaries. As a result, it was determined that the wetlands, which were relatively more in 2017 and 2018, experienced almost complete drought in 2021. When the surface area of wetlands is calculated, it was determined that there was approximately 75% wetland loss between the most significant area and the smallest area between 2017 and 2021.