Analog Simulator of Flood Wave Transformation in Upper Vistula River System

1985 ◽  
Vol 18 (14) ◽  
pp. 99-104
Author(s):  
R. Gierasimiuk ◽  
A. Karbowski ◽  
K. Malinowski ◽  
A. Markowski
Keyword(s):  
River System ◽  
Wave Transformation ◽  
Flood Wave ◽  
Vistula River

scholarly journals Experimental determination of the flood wave transformation and the sediment resuspension in a small regulated stream in an agricultural catchment

2017 ◽  
Vol 21 (11) ◽  
pp. 5681-5691 ◽  
Author(s):  
David Zumr ◽  
Tomáš Dostál ◽  
Jan Devátý ◽  
Petr Valenta ◽  
Pavel Rosendorf ◽  
...  
Keyword(s):  
Sediment Transport ◽  
Initial Conditions ◽  
Sediment Resuspension ◽  
Early Spring ◽  
Wave Transformation ◽  
Flood Wave ◽  
Water Saturated ◽  
Artificial Flood ◽  
Long Channel ◽  
Flood Waves

Abstract. This paper presents the methodology used for artificial flood experiments conducted in a small artificial, trained (regulated) channel on the Nučice experimental agricultural catchment (0.5 km2), central Czech Republic, and the results of the experiments. The aim was to monitor the transformation of the flood wave and the sediment transport within the channel. Two series of experiments were carried out in contrasting initial conditions: (a) in September, when the stream banks were dry, the baseflow was negligible, and the channel was fully overgrown with vegetation; and (b) in March, when the stream banks were almost water saturated, the baseflow was above the annual average, and there was no vegetation present. Within each campaign, three successive flood waves, each with an approximate volume of 17 m3 and peak flow of ca. 40 L s−1, were pumped into the upper part of the catchment drainage channel. The transformation of the flood wave and the sediment transport regime within an approximately 400 m long channel section were monitored by measuring the discharge, the turbidity, and the electrical conductivity in three profiles along the stream. On the basis of the results, it was concluded that there is a considerable amount of deposited sediment, even in the well-trained and straight channel that can be re-mobilized by small floods. Part of the recorded sediment therefore originates from the particles deposited during previous soil erosion events. The flood waves initiated in dissimilar instream conditions progressed differently – we show that the saturation of the channel banks, the stream vegetation and the actual baseflow had a strong influence on the flood transformation and the sediment regime in the channel. The sediment moves quickly in winter and early spring, but in the later part of the year the channel serves as a sediment trap and the resuspension is slower, if dense vegetation is present.

scholarly journals Results and Future Prospects of the Hydro/dynamic Model of Flood Waves Spreading Use in the Amur River Basin

2017 ◽  
Author(s):  
Keyword(s):  
River Basin ◽  
Hydrodynamic Model ◽  
Model Verification ◽  
Wave Transformation ◽  
Amur River Basin ◽  
Flood Wave ◽  
Amur River ◽  
The Amur River ◽  
Far Eastern

A 2013 disastrous inundation occurred on the Amur River indicated the necessity of reaching new solutions for floods prevention and their negative consequences minimization. One of the possible ways is development of a method for setting the discharge hydrograph of the Bureya, Nizhne-Bureya and Zeya reservoirs, nonsynchronous with the forecasted hydrograph of the flood wave passage for flood-risky ranges of the Middle and Lower Amur on the basis of the flood wave transformation calculations. Results of the digital experiments on simulating the Amur runoff transformation with a hydrodynamic model developed by RosNIIVKh Far Eastern Branch on the basis of DHI-MIKE11 for the Middle and Lower Amur for information/analytical support of the Amur BWA activities on determination of the high-water passage regime for the reservoirs. As a result of the hydrodynamic model verification over the 2016–2017 period as a whole we obtained satisfactory estimations of the simulation quality criteria. On the basis of the simulation results analysis requirements to the boundary conditions have been formulated in addition to the determination of a range of practical tasks to be solved to adopt successfully the hydrodynamic simulation methods to the operative practice of the flood regulation in the Amur River basin including provision of the beds’ and floodplains’ morphometric and hydraulic characteristics relevance; the use of the runoff formation modern forecast hydrological models calculation data; and automation of the scenario calculations on the basis of integration with the Far Eastern Department of Hydro/meteorological Service state hydrological monitoring information system.

scholarly journals Substantiation of the Possibility to Use Dikes for Flood Regulation.

2016 ◽  
pp. 63
Author(s):  
Keyword(s):  
Network Capacity ◽  
Wave Transformation ◽  
Flood Wave ◽  
Channel Network ◽  
Flood Peak ◽  
River Floodplains ◽  
Maximal Runoff ◽  
Flood Regulation ◽  
Concurrent Simulation ◽  
Wave Passage

Effect of the flood regulation with the river floodplains was discussed, and a mechanism of the flood wave transformation with the basin channel network in the natural regime and during the floodplain banking was characterized. The possibility of dikes’ capacity use for cutting off the flood peak in extreme situations was substantiated and the relevant Chinese experience was analyzed. Theoretical basis for the channel network capacity management with pre-planned flooding of the “protected” floodplain areas was presented. The appropriated methods were developed; they included plotting of the maximal runoff calculated hydrographs, concurrent simulation of the flood wave passage and dikes capacities filling, more precise definition of parameters of the water-passing facilities in the dike body. Proposals on the designing of floodplain volumes and dikes intended for the flood runoff regulation were formulated. The Ingoda River (Transbaikal Kray) was taken as a study case. It was characterized by the flood maximal flows passage in different reaches due to the regulating impact of the bed and floodplain. Comparison of the real flood passage with the simulation results with the use of floodplain regulating capacities for this river was presented. Tentative results were the evidence of the principal possibility of the dikes capacity use in extreme conditions.

scholarly journals Experimental determination of the flood wave transformation and the sediment resuspension in a small regulated stream in an agricultural catchment

2017 ◽  
Author(s):  
David Zumr ◽  
Tomáš Dostál ◽  
Jan Devátý ◽  
Petr Valenta ◽  
Pavel Rosenforf ◽  
...  
Keyword(s):  
Initial Conditions ◽  
Sediment Resuspension ◽  
Wave Transformation ◽  
Flood Wave ◽  
Regulated Stream ◽  
Series Of Experiments ◽  
Water Saturated ◽  
Artificial Flood ◽  
Long Channel ◽  
Flood Waves

Abstract. This paper presents the methodology used for artificial flood experiments conducted in a small artificial, trained (regulated) channel on the Nučice experimental agricultural catchment (0.5 km2), central Czech Republic, and the results of the experiments. Two series of experiments were carried out in contrasting initial conditions: (a) in summer, when the stream banks were dry, the baseflow was negligible and the channel was fully overgrown with vegetation; and (b) in spring, when the stream banks were almost water saturated, the baseflow was above the annual average, and there was no vegetation present. Within each campaign, three successive flood waves, each with an approximate volume of 17 m3 and peak flow of ca 40 l s−1, were pumped into the upper part of the catchment drainage channel. The transformation of the flood wave and the sediment transport regime within an approximately 400 m long channel section were monitored by measuring the discharge, the turbidity and the electrical conductivity in three profiles along the stream. On the basis of the results, it was concluded that there is a considerable amount of deposited sediment in the channel that can be re-mobilized even by small floods. Part of the recorded sediment therefore originates from the particles deposited during previous soil erosion events. The flood waves initiated in dissimilar instream conditions progressed differently – we show that the saturation of the channel banks, the stream vegetation and the actual baseflow had a strong influence on the flood transformation and the sediment regime in the channel.

scholarly journals Assessing the retention capacity of a floodplain using a 2D numerical model

2010 ◽  
Vol 58 (4) ◽  
pp. 221-232 ◽  
Author(s):  
Jana Valentová ◽  
Petr Valenta ◽  
Lenka Weyskrabová
Keyword(s):  
Numerical Model ◽  
Water Storage ◽  
Wave Transformation ◽  
Flood Wave ◽  
Retention Capacity ◽  
Water Storage Capacity ◽  
Meandering Channels ◽  
Linear Reservoir ◽  
Flood Flow ◽  
2D Numerical Model

Assessing the retention capacity of a floodplain using a 2D numerical modelThis paper presents a method for assessing the retention capacity of a floodplain in the course of flooding and for estimating the significance of its water storage for transforming a flood wave. The method is based on two-dimensional numerical modeling of the flood flow in a river channel and in the adjacent floodplains, and is suitable for cases when the morphology of the flooding area is variable and complex, e.g. broad inundation areas with meandering channels. The approach adopted here enables us to quantify the retention capacity for inundation areas of various characters and with various land uses, and provides a tool for estimating the efficiency of possible measures for increasing the water storage capacity of a floodplain. The retention capacity is estimated using an evaluation of a series of detailed flood flow modeling results; the flood wave transformation effect is predicted with the aim of creating a non-linear reservoir model. A parametric study of the floodplain retention capacity for the upper branch of the Lužnice River is presented here, and the results for the current state and for various hypothetical scenarios of changes in geometry and land use are evaluated and compared.

scholarly journals Floods in the Upper Part of Vistula and Odra River Basins in the 19th and 20th Centuries / Powodzie W Górnej Części Dorzeczy Wisły I Odry W XIX I XX Wieku

2014 ◽  
Vol 19 (1-2) ◽  
pp. 127-134 ◽  
Author(s):  
Stanisław W. Czaja ◽  
Robert Machowski ◽  
Mariusz Rzętała
Keyword(s):  
River Basin ◽  
Environmental Conditions ◽  
Catchment Area ◽  
River Basins ◽  
Flood Wave ◽  
High Rainfall ◽  
Vistula River ◽  
River Bed ◽  
Odra River ◽  
Second Category

Abstract The discussion of floods in this paper covers the section of the Odra River basin from its source down to the mouth of the Nysa Klodzka River and the section of the Vistula River basin down to the Krakow profile. The area of the upper part of Odra River basin is 13,455 km2 and the length of the river bed in this section is ca. 273.0 km. In the reach examined, the Vistula River is 184.8 km long and has a catchment area of approximately 8,101 km2. Geographical and environmental conditions in the upper part of the Vistula and Odra Rivers basins are conducive to floods both in the summer and winter seasons. The analyses conducted for the 19th and 20th centuries demonstrate that two main types of floods can be distinguished. Floods with a single flood wave peak occurred in the following years in the upper Odra River basin: 1813, 1831, 1879, 1889, 1890 and 1896, and on the Vistula River they were recorded in 1805, 1813, 1816, 1818, 1826, 1830, 1834, 1844 and 1845. In the 20th century, similar phenomena were recorded on the Odra River in 1903, 1909, 1911, 1915, 1925, 1960, 1970 and 1985, and on the Vistula River they occurred in 1903, 1908, 1925, 1931, 1934, 1939, 1948, 1951, 1970, 1972, 1991, 1996, 1997 and 1999. The second category includes floods with two, three or more flood wave peaks. These are caused by successive episodes of high rainfall separated by dry periods that last for a few days, a fortnight or even several weeks. Such floods occurred on the upper Odra River in 1847, 1854, 1880, 1888, 1892, 1897 and 1899; while on the Vistula River only two (1839 and 1843) floods featured two flood wave peaks. In the 20th century on the upper Odra River, floods of this type occurred in 1902, 1926, 1939, 1940, 1972, 1977 and 1997; on the upper Vistula River, they were recorded in 1906, 1915, 1919, 1920, 1940, 1958, 1960 and 1987.

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