FOSTERING FLOOD CONTROL POLICY MEASURES AT BASIN SCALE HYDROSYSTEMS WITH THE USE OF GEO-SPATIAL TECHNOLOGIES

Charalampos Skoulikaris, Eleni Tzanou

DOI Number
https://doi.org/10.2298/FUACE230630036S
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Abstract


The increased rate of floods occurrence during the last few decades, which is mainly attributed to climate change and mankind pressures on the hydrosystems, results on large scale horizontal flood control and protection policies. At European Union (EU) scale, the Directive on the Assessment and Management of Flood Risks of the year 2007 aims, after implementing sequential processes which amongst other include remote sensing and hydraulic modeling coupling, at proposing specific measures for mitigating the flood risks and the derived socioeconomic devastating impacts. The current research demonstrates the usefulness of geo-spatial technologies for assessing the operationality of the current anti-flood infrastructures together with the historic flood events and the necessity of maintaining the infrastructures. For doing so, all the flood control structures in the case study area were mapped in a geographic information system (GIS). Additionally, information regarding the floods’ spatial and temporal placement were used to populate the GIS database, while the repeatability of the works regarding the maintenance and/or restoration and/or failure recovery of the flood control structures was attributed in monetary terms to evaluate the feasibility of the projects. The case study area is the Greek part of the Struma/Strymonas transboundary river basin, which is shared between Bulgaria and North Macedonia and Greece. The outputs of the research demonstrated the usefulness of the current flood protection projects, however, there were particular cases where the annual maintenance cost necessitates the promotion of new and more financial independent solutions.

Keywords

hydrosystems, floods, geographic information system, anti-flood structures, Strymonas River Basin, Greece

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References


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