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Flood flows in the Odra River in 2010 - quantitative and qualitative assessment of ADCP data

100%

Banasiak R., Krzyzanowski M.

Meteorology Hydrology and Water Management. Research and Operational Applications

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2015

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tom 03

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nr 1

During the 2010 flood in the Odra basin a measuring campaign was executed that produced a set of data on peak discharges. Flow measurements located near gauging stations were taken from a boat with an Acoustic Doppler Current Profiler (ADCP) equipped with a GPS. The paper presents a detailed analysis of the records, including referencing to ortophotomaps, to assess the quality of ADCP recording, local flow characteristics and finally to re-evaluate the total discharge values. Further, the flow is divided between the main channel and the floodplains, while the main channel in the case of the presence of groynes is additionally divided into a central zone between the groynes and zones of groynes. Partitioning of particular zones to the total discharge is calculated along with average and maximum local flow velocities. The study delivers data for the development of more reliable numerical modelling tools, which in turn may fulfil the measuring gaps in situ. It is shown that the modern field data acquisition GIS post processing, and numerical modelling support each other and improve the final overall result, bringing hydrologic products to a higher standard. The synergy of hydraulics and geoinformatics in hydrology is therefore highly recommendable.

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Variability of bedload transport rate during flood flows in the Zagozdzonka River

100%

Popek Z.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

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2010

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tom 42

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nr 1

69-77

The paper presents the measurement results of bedload sediment transport during the flood flows observed in the Zagożdżonka River. The point for measuring the bedload transport, equipped with sediment catcher, devices for continuous measurements, and automated data recording, was localized above the Czarna gauge station in catchment studied by the Department of Hydraulic Engineering and Environmental Restoration, Warsaw University of Life Sciences – SGGW. The results of bedload transport measurements during one of the flood flow waves were compared to those calculated by using the Bagnold’s formula. To determine the critical bed-shear stress, the Author’s formula resulting from laboratory experiments, was used. Calculated variability of bedload transport rate during analyzed flood flow wave apparently differed from that directly measured. Nevertheless, mass of bedload achieved from calculations was lower by 6% than that from measurements, which can be considered as good result consistence.

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Estimation of T-year flood discharge for a small lowland river using statistical method

84%

Banasik K., Byczkowski A.

Annals of Warsaw Agricultural University - SGGW. Land Reclamation

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2006

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nr 37

27-31

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Flow roughness evaluation of mobile-bed streams

67%

Matousek V.

Infrastruktura i Ekologia Terenów Wiejskich

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2010

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nr 11

Recent field measurements of mobile-bed roughness in selected streams in Czech Republic are described. The results are collected in a database organized to a www catalogue. The field results of the bed roughness in two gravel-bed streams under flash flood conditions are discussed. A methodology is suggested for evaluation of the bed roughness of straight channels transporting sediments. A prediction of the bed roughness under the condition of intense sediment transport in the upper plane bed regime is demonstrated on the results of laboratory pressurized-pipe tests. An application to flood conditions in a steep mountain creek is shown in a case study.

Ograniczanie wyników

1 Annals of Warsaw Agricultural University - SGGW. Land Reclamation

1 Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

1 Infrastruktura i Ekologia Terenów Wiejskich

1 Meteorology Hydrology and Water Management. Research and Operational Applications

1 Banasiak R.

1 Banasik K.

1 Byczkowski A.

1 Krzyzanowski M.

1 Matousek V.

1 Popek Z.

1 2015

2 2010

1 2006

Flood flows in the Odra River in 2010 - quantitative and qualitative assessment of ADCP data

Variability of bedload transport rate during flood flows in the Zagozdzonka River

Estimation of T-year flood discharge for a small lowland river using statistical method

Flow roughness evaluation of mobile-bed streams