Greifswald 2024 – wissenschaftliches Programm

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UP: Fachverband Umweltphysik

UP 3: Remote Sensing

UP 3.1: Vortrag

Dienstag, 27. Februar 2024, 11:00–11:15, ELP 6: HS 4

Assessing the Impact of the 2023 Storm Daniel Flood in Pineios River Estuaries: An Analysis of Crop-Type and Inundation Mapping Using Sentinel-1/2 Imagery — •Rizos-Theodoros Chadoulis^1,2, Ioannis Manakos¹, and Constantine Kotropoulos² — ¹Centre for Research and Technology Hellas, Information Technologies Institute, 6th km Harilaou-Thermi Road, 57001 Thessaloniki, Greece — ²Department of Informatics, Aristotle University of Thessaloniki, Box 451, Thessaloniki 54124, Greece

The 2023 Storm Daniel significantly affected the Pineios River estuaries, causing widespread flooding and impacting the agricultural landscape. This study aims to assess the impact of the floods on the area, utilizing Sentinel-1 and Sentinel-2 imagery for crop-type and inundation mapping. For the crop-type mapping, a time-series analysis was conducted over the 2022-2023 agricultural cycle, capturing the phenological changes of different crops, and a detailed crop-type map was produced using Machine Learning techniques and validated against in-situ observations conducted during the summer of 2023. The inundation mapping was achieved through a synergistic analysis of Sentinel-1 radar imagery and Sentinel-2 optical data, and the output was juxtaposed with the Copernicus EMS Rapid Mapping products. The proposed methodology provides accurate, evidence-based information to decision-makers, aiding in understanding the immediate effects of such events on agricultural regions but also providing valuable data for future flood mitigation and agricultural resilience planning in Thessaly.

Keywords: crop-type mapping; inundation mapping; Sentinel-1; Sentinel-2; agricultural resilience