Автоматизація розрахунку площі водної поверхні для потреб водного балансу з використанням супутникових зображень

Abstract

Based on Sentinel-2 satellite imagery and the Normalized Difference Water Index (NDWI), a software implementation for estimating water surface area using a time-series weighted approach is developed. The methodology relies on processing a series of images acquired at different dates, with image quality taken into account through weighting coefficients. The approach was tested for two periods of 2025 (first half of summer and early autumn), enabling weighted estimates of water surface area and identification of seasonal variations. The results confirm the feasibility of using the proposed approach to improve the accuracy of estimating the water surface area, which can be further used in river basin water balance studies.