This dataset captures the environmental dynamics of the Siutghiol Lake and the Black Sea, and aims to monitor the radial surface currents across the lake and near the Black Sea shore. Land regions captured in the images serve as a source of reference data for correcting non-geophysical Doppler shift. It serves to the development and demonstration of algorithms to extract information about the physical parameters. This dataset will be used for the implementation of use cases supporting the digital twin of the Black Sea coast and Lake Siutghiol. The dataset contains SAR intensity images (VH polarization) and sea current maps and is based on Sentinel-1A SLC images acquired between July 2020 and August 2021. The Sentinel-1A images are downloaded directly from the Copernicus browser. The sea current maps are generated as follows. The input SLC image is first processed in ESA SNAP by applying a “deramping and demodulation” procedure. Then the Doppler Centroid images are obtained using a fast correlation-based Doppler estimator applied on a two-dimensional sliding window. The final step is to convert Doppler Centroid values to radial surface velocity. A detailed description of the procedure is provided in [1].

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