Hydraulic potential of the Lower Vistula (Poland)

We study cross-sections on the Detailed Geological Map of Poland (SMGP) to find a geologic and geomorphic pattern under river valleys in Poland. The pattern was found in 20 reaches of the largest Polish rivers (Odra, Warta, Vistula, Narew, and Bug) located in the European Lowland, in the landscape of old (Pleistocene, Saalian) glacial high plains extending between the Last Glacial Maximum (LGM) moraines on the North and the Upland on the South. The Upland was slightly folded and up-faulted during Alpine orogeny together with the thrust of Carpathian nappes and the uplift of Tatra Mts. and Sudetes. The found pattern is an alluvial river with broad Holocene floodplain and the channel developed atop the protrusion of bedrock (Jurassic, Cretaceous limestones, marlstones, sandstones) or non-alluvial, cohesive, overconsolidated sediments resistant to erosion (glacial tills, lacustrine or “ice-dammed lake” clays) of Cenozoic (Paleogene, Neogene, Quaternary—Elsterian). We regard the sub-alluvial protrusion as the limit of river incision and scour. It cannot be determined why the river flows atop these protrusions, in opposition to “differential erosion”, a geomorphology principle. We assume it is evidence of geological flood control. We propose an environmental and geomorphological framework for the hydrotechnical design of instream river training.

Section: Resultsmentioning

confidence: 99%

Rivers Try Harder. Reversed “Differential Erosion” as Geological Control of Flood in the Large Fluvial Systems in Poland

Bihałowicz

Wierzbicki

2021

“…Vistula River, with its length of 1022 km, is an important symbol of Poland (Figures 1 and 2) and Polish identity [18], and it was the most navigable river in Europe four centuries ago [19,20]. It has a high economic potential (hydro-energy, navigation, water supply, and recreation), as well as important ecological functions, and it is the location of several noteworthy cities and industrial centers [18,[21][22][23][24].…”

Section: Study Areamentioning

confidence: 99%

An Eco-Study for a Feasible Project: “Torun and Its Vistula Stretch—An Important Green Navigation Spot on a Blue Inland Waterway”

Mănoiu

Crăciun

Kubiak-Wójcicka

et al. 2022

This paper aims to present the main trends of an eco-study for a possibly challenging future inland waterway transportation project. The study will prove if Torun and its Vistula stretch represent a viable and profitable spot on this inland waterway, and its outcomes will constitute a sound baseline that can be used for the project itself but also for many scientific, educational and economic purposes. The eco-multilayer research will comprise the following elements: hydrology and biology of the Torunian Vistula (TV) stretch, and water quality; a public opinion survey; the urban functions of the TV segment (social, educational, urban planning, aesthetical, recreational, cultural, utilitarian and economical). The conclusion is that the eco-research and the project will improve Torun City’s image as a Green Urban Space, in terms of respect towards the environment, a sustainable form of transport, and attractive ways of relaxation and spending leisure time by Torun’s population and visitors. The eco-study and the project will contribute to promoting the Torun region by supporting the possibility of watching beautiful landscapes (sightseeing tours) spread along the Vistula River. The project itself will have a positive impact on the Torunian economy and on the lifestyle of Torun’s citizens.

“…The lower part of the Vistula River has a quite large hydro-energy potential. There have been many plans for the development of the Lower Vistula River so far [1].…”

Section: Planned Vistula Dam Cascadementioning

confidence: 99%

Case Study: Forecasting the Lower Vistula Bed Deformation without and with Development of Dam Cascade

Kubrak

Kiczko

Kubrak

2021

The case study presents the results of numeric simulations of deformations of Vistula River bed downstream the Włocławek Dam, with and without development of the downstream dam cascade. Calculations were performed using a one-dimensional flow model MIKE11 with a river transport module. Using synthetic inflow hydrographs, predictions were performed for 39 year period (2016–2055). Results indicate that the construction of the dam cascade will reduce the erosion of the river bed downstream the Włocławek dam.