Seasonal monitoring of Durankulak Lake using Sentinel 2 Data

Autor: Ivanova, Iva, Stankova, Natalia, Zaharinova, Mariana
Jazyk: angličtina
Rok vydání: 2021
Předmět:
DOI: 10.5281/zenodo.6497336
Popis: Durankulak Lake is part of the European Ecological Network of NATURA2000 and a Ramsare Convention Site for the wetlands. The protected site covers an area of 446.5 ha. It is one of the well-preserved coastal wetlands in Bulgaria with international importance for the protection of over 260 endemic, rare and endangered species of plants and animals. One of the problems of the lake, as well as of many other wetlands in Bulgaria is the excessive reed overgrowth. Regular monitoring is necessary for protection and maintenance of this wetland therefore satellite data have a great advantage. This study monitored the lake for the period - December 2019 - July 2020, including three seasons - winter, spring and summer. Satellite data from Sentinel 2A and Sentinel 2B were used. One satellite image was used for each month. Pre-processing of the satellite data was made and spectral indices were generated. Тhe results obtained show the development and condition of the vegetation in Durankulak Lake. NDVI was generated in order to assess the vegetation in the lake. The orthogonal transformation model called Tasseled Cap Transformation (TCT) has also been used. This is a model for classifying and analyzing the processes related to the dynamics of changes, affecting the main components of the earth's surface: soil, vegetation and water. The results show the development of Durankulak Lake for the period of the observed three seasons, which assess its condition and changes that occur in a short monitored period.
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Databáze: OpenAIRE
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