Machbarkeitsstudie zur Vorhersage von Eisstau auf der Oder

Kögel, Michael; Das, Apurba; Marszelewski, Włodzimierz; Carstensen, Dirk

doi:10.1007/s35147-017-0045-0

Cited by 7 publications

(2 citation statements)

References 2 publications

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“…The suitability and applicability of using satellite data to investigate ice-jam events has already been demonstrated in various studies [7][8][9]. In Kögel et al [10], the capability of satellite radar data for recording ice sheet formation along the Oder River was reported. Unterschultz et al [7] presented the potential of RADARSAT-1 single-polarization Synthetic Aperture Radar (SAR) for investigating ice-jam events on the Athabasca River (Canada) by evaluating backscatter signals of multiple satellite images in combination with ground data taken during associated on-site investigations.…”

Section: Introductionmentioning

confidence: 94%

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

Möldner,

Hentschel,

Carstensen

2024

Water

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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, 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.

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Section: Introductionmentioning

confidence: 94%

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

Möldner,

Hentschel,

Carstensen

2024

Water

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“…The roughness coefficients and the rating curves implemented in the model also require updating to reflect ice-jam backwater effects. An ice-jam hydraulic model has been set up for the Oder River [27] between Ratzdorf and Kienitz (see Figure 11 for locations) and needs to be extended to Dabie Lake to include ice-jam backwater effects at Hohensaaten-Finow.…”

Section: Ice-jam Flood Forecastingmentioning

confidence: 99%

Assessing and Mitigating Ice-Jam Flood Hazards and Risks: A European Perspective

Alfredsen

Carstensen²,

Choryński

et al. 2022

Water

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The assessment and mapping of riverine flood hazards and risks is recognized by many countries as an important tool for characterizing floods and developing flood management plans. Often, however, these management plans give attention primarily to open-water floods, with ice-jam floods being mostly an afterthought once these plans have been drafted. In some Nordic regions, ice-jam floods can be more severe than open-water floods, with floodwater levels of ice-jam floods often exceeding levels of open-water floods for the same return periods. Hence, it is imperative that flooding due to river ice processes be considered in flood management plans. This also pertains to European member states who are required to submit renewed flood management plans every six years to the European governance authorities. On 19 and 20 October 2022, a workshop entitled “Assessing and mitigating ice-jam flood hazard and risk” was hosted in Poznań, Poland to explore the necessity of incorporating ice-jam flood hazard and risk assessments in the European Union’s Flood Directive. The presentations given at the workshop provided a good overview of flood risk assessments in Europe and how they may change due to the climate in the future. Perspectives from Norway, Sweden, Finland, Germany, and Poland were presented. Mitigation measures, particularly the artificial breakage of river ice covers and ice-jam flood forecasting, were shared. Advances in ice processes were also presented at the workshop, including state-of-the-art developments in tracking ice-floe velocities using particle tracking velocimetry, characterizing hanging dam ice, designing new ice-control structures, detecting, and monitoring river ice covers using composite imagery from both radar and optical satellite sensors, and calculating ice-jam flood hazards using a stochastic modelling approach.

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