Ice-Jam Investigations along the Oder River Based on Satellite and UAV Data

  • The Oder River, situated along the border between Poland and Germany, is regularly affected by ice-jam events and their associated hazards, such as a sudden rise in water level and the endangerment to flood-protection infrastructure. The existing databases on past ice-jam events lack substantial information considering ice formation, blockage origins or the spatiotemporal evolution of the ice cover needed for a comprehensive understanding of relevant ice processes. Within this study, the evaluation of satellite and Uncrewed Aerial Vehicle (UAV) data was carried out in order to analyze the capabilities of enhancing river ice information in the study area. Satellite imagery was proven to be a valuable source of investigating ice-jam phenomena on all scales, leading to the identification of initial ice-jam locations, surveying spatiotemporal ice cover evolution or monitoring the maximum ice-cover extent. A simplified approach for river ice classification of satellite radar data using the K-Means Cluster Analysis is introduced, enablingThe Oder River, situated along the border between Poland and Germany, is regularly affected by ice-jam events and their associated hazards, such as a sudden rise in water level and the endangerment to flood-protection infrastructure. The existing databases on past ice-jam events lack substantial information considering ice formation, blockage origins or the spatiotemporal evolution of the ice cover needed for a comprehensive understanding of relevant ice processes. Within this study, the evaluation of satellite and Uncrewed Aerial Vehicle (UAV) data was carried out in order to analyze the capabilities of enhancing river ice information in the study area. Satellite imagery was proven to be a valuable source of investigating ice-jam phenomena on all scales, leading to the identification of initial ice-jam locations, surveying spatiotemporal ice cover evolution or monitoring the maximum ice-cover extent. A simplified approach for river ice classification of satellite radar data using the K-Means Cluster Analysis is introduced, enabling the differentiation between river ice formations. Based on UAV data taken in this study, workflows were presented, allowing for measurements of ice floe velocities and the localization of flooded and ice-covered flow control structures.show moreshow less

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Metadaten
Author:Fabian MöldnerORCiD, Bernd Hentschel, Dirk CarstensenORCiD
DOI:https://doi.org/10.3390/w16101323
ISSN:2073-4441
Parent Title (English):Water
Publisher:MDPI AG
Document Type:Article
Language:English
Reviewed:Begutachtet/Reviewed
Contributing Corporation:Bundesanstalt für Wasserbau (BAW)
Release Date:2024/07/10
Tag:Oder River; Sentinel-1; ice detection and characterization; ice-jam flooding; river ice monitoring; space-borne remote sensing; uncrewed aerial vehicles
Volume:16
Issue:10
Article Number:1323
Pagenumber:23
institutes:Institut für Wasserbau und Wasserwirtschaft
Research Themes:Energie & Ressourcen
Licence (German):Creative Commons - CC BY - Namensnennung 4.0 International
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