Bathymetric changes, roughness and conveyance of a compound, regulated by groynes river channel during low and high water conditions

Banasiak, Robert; Krzyżanowski, Marcin; Gierczak, J; Wdowikowski, Marcin

doi:10.1201/b17133-54

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The knowledge of this contribution is important for better understanding and estimating the main channel roughness with sediment motion and its potential influence on the water level predictions. It also delivers a clue on the discharge part affected by the groynes, as has been studied in more detail elsewhere (Banasiak et. al.…”

Section: Flow Partitioning In River Cross-sectionmentioning

confidence: 92%

Flood Flows in the Odra River in 2010 – quantative and qualitative assessment of ADCP data

Banasiak¹,

Krzyżanowski²

2015

Meteorol. Hydrol. Water Manage.

View full text Add to dashboard Cite

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.

show abstract

Section: Flow Partitioning In River Cross-sectionmentioning

confidence: 92%

Flood Flows in the Odra River in 2010 – quantative and qualitative assessment of ADCP data

Banasiak¹,

Krzyżanowski²

2015

Meteorol. Hydrol. Water Manage.

View full text Add to dashboard Cite

show abstract

“…For grasslands, the M value was set to 17-25 m 1/3 s −1 , for forests and bushes to 8-10 m 1/3 s −1 . For the main channel, the results of studies by Szczegielniak [54] and Banasiak et al [55] were useful. For instance, the change in the Mannings coefficient in relation to the change in the flow rate and water depth was known and depended on the topography of the alluvial bed (consisting primarily of sand).…”

Section: Roughnessmentioning

confidence: 99%

Large-Scale Two-Dimensional Cascade Modeling of the Odra River for Flood Hazard Management

Banasiak

2023

Water

View full text Add to dashboard Cite

Large-scale two-dimensional hydrodynamic modeling at high resolution is still rarely performed because of its high computational cost and the lack of topographical data for some areas. Despite this, such modeling has been performed for the Odra River, the second largest river in Poland. This river has a high potential for flooding, which has been severely experienced many times in history, most recently in 1997 and 2010, when floods caused large losses. Since then, many different types of activities have been executed in order to reduce the risk of flooding. The paper presents a 2D modeling concept created during these activities. Given that the river valley is up to several kilometers wide, and consists of many complex topographical features and hydrotechnical facilities, a cascade of 25 2D models in MIKE21 software was developed. It covers a 600 km long section of the Odra River and an area of 5700 km2 in total. A regular grid resolution of 4–6 m was used in the modeling. The models were applied for numerous purposes, first for the elaboration of flood hazard and flood risk maps for larger cities, and then for the verification of historic flood data and stage–discharge relations at gauge stations, as well as the verification of design discharges via flood routing. Other important uses were the evaluation of the effectiveness of flood mitigating works, including the feasibility study for the Racibórz reservoir, and the assessment of flood hazard due to embankment failure or ice jamming. Selected applications, as well as practical aspects of the model’s preparation and use, are presented.

show abstract

Bathymetric changes, roughness and conveyance of a compound, regulated by groynes river channel during low and high water conditions

Cited by 2 publications

References 0 publications

Flood Flows in the Odra River in 2010 – quantative and qualitative assessment of ADCP data

Flood Flows in the Odra River in 2010 – quantative and qualitative assessment of ADCP data

Large-Scale Two-Dimensional Cascade Modeling of the Odra River for Flood Hazard Management

Contact Info

Product

Resources

About