Determination of Karina Lagoon surface area water temperature changes using remote sensing methods

Abstract

Evaporation, inability to feed from land, and especially in areas where the lagoon joins the sea, deposits that form over time form embankments, such as lake level changes over time, causes a change in lake level. Remote sensing methods, which provide important advantages in the detection of this change, also provide information about the parameters affecting the lake ecosystem. One of the parameters affecting the lake ecosystem is the surface water temperature. In the study, the Karina Lagoon located in Aydın was examined. The aim of the study is to determine the temperature changes in the lake surface water between 1985 and 2020 using Landsat satellite images. Firstly, Automatic Water Extraction Index (AWEI) was applied to Landsat satellite images in order to determine the lake surface area. Firstly, the Automatic Water Extraction Index (AWEI) was applied to the Landsat satellite images to determine the lake surface area. Thus, the spatial change in the lagoon was determined as a decrease of 6.85%. The AWEI method worked with a minimum accuracy of 91%. Then, the lake surface temperatures were determined by using the thermal bands of the satellite images. Maximum measured water temperature of 30.42 0C, minimum measured 17.93 0C.