Satellite Monitoring of Dragoman Marsh for the Period 2018-2023

Abstract

In this study, monitoring of the Dragoman Marsh was conducted for the period 2018-2023. The Dragoman Marsh is distinguished as the largest natural karst wetland area in Bulgaria. Monitoring of this natural formation is essential for studying its dynamic processes and ensuring its protection. The use of satellite data represents a key tool in this context. The data from the Sentinel 2 satellite being utilized for this purpose. Following appropriate processing of this data, classification of the object by years and seasons - spring and summer-autumn - was performed, using indices such as NDVI, NDWI, and TCT based index - NDGI. The obtained results contribute to a better understanding of the development of the wetland area and provide guidance for its conservation and management.