Internal structure and sources of selected ice jams on the lower Vistula River

Pawłowski, Bogusław

doi:10.1002/hyp.10951

Cited by 10 publications

(4 citation statements)

References 28 publications

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“…Mojski (1980) marked these floodway channels on his geomorphological map. We suppose that these floodways have been active especially during the flood events induced by ice-jams (Pawłowski, 2016). They worked similarly to the Atchafalaya floodway, just above the outlet of the Mississippi River to the Atlantic Ocean (Mossa et al, 2019).…”

Section: Geomorphological Implicationsmentioning

confidence: 97%

Urban geomorphology of the Vistula River valley in Warsaw

et al. 2021

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Using ALS LIDAR DEM and OpenStreetMap data we visualise in ArcGIS the geomorphic features of a large, lowland river which flows through the area impacted by urbanisation of a big citythe capital of Poland. We present on one map the main geomorphological surfaces and their exact boundaries: valley edge, terrace front and floodplain juxtaposed with buildings and the main transportation corridors. We identify convex aeolian and fluvial landforms: dunes, levees, sandy lobes including crevasse splays, ridges between swales, sandy bars, islands; and concave erosional landforms: floodplain channels, crevasse channels, oxbow lakes, palaeo-meanders, tributary channels, and chute channels. We draw implications for flood management, geoarchaeology geo-heritage conservation. We search for traces of extreme flood events in the Holocene, also on the higher terraces which the river developed by its deposition in the Pleistocene.

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Section: Geomorphological Implicationsmentioning

confidence: 97%

Urban geomorphology of the Vistula River valley in Warsaw

et al. 2021

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“…Floods in cold climates are caused mainly by snowmelt [1], and ice jams are responsible for some of the northern rivers' most severe and recurrent floods [2]. River ice has a significant impact on nearly 66% of rivers in the Northern Hemisphere [3].…”

Section: Introductionmentioning

confidence: 99%

RiTiCE: River Flow Timing Characteristics and Extremes in the Arctic Region

Shahrood

Ahrari

Rossi

et al. 2023

Water

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(1) Background: river ice has a significant impact on nearly 66% of rivers in the Northern Hemisphere. Ice builds up during winter when the flow gradually reduces to its lowest level before the spring melt is initiated. Ice-induced floods can happen quickly, posing a risk to infrastructure, hydropower generation, and public safety, in addition to ecological repercussions from the scouring and erosion of the riverbeds. (2) Methods: we used the annual daily hydrograph to develop a RiTiCE tool that detects the break-up date and develops indices to analyze timing characteristics of extreme flow in the Tana and Tornio Rivers. (3) Results: the study showed that low-flow periods in two rivers had a significant trend with a confidence level of 95%. Additionally, it was observed that the occurrence date of seasonal 90-day low- and high-flow periods occurred earlier in recent years. Conversely, the Tana River showed a negative trend in its annual minimum flow over the century, which is the opposite of what happened with the Tornio River. (4) Conclusions: the method can be used to detect the date when the river ice breaks up in a given year, leading to a better understanding of the river ice phenomenon.

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“…Sui et al [13] worked on the frazil ice jams data of the field measurements on Yellow River, indicated not only water level correlates with thickness of the jams, but it also is dependent on the discharge of the ice. Pawłowski [14] made measurements of the hanging dams at the Vistula River bend. It was indicated the frazil layer thickness along the inner bank is just slightly greater than that of the outer bank, and there are not any noticeable changes in frazil ice inflow under existing ice cover with the varying frazil deposition thickness.…”

Section: Introductionmentioning

confidence: 99%

Freeze-Up Ice Jam Formation in the River Bend, a Case Study on the Inner Mongolia Reach of Yellow River

et al. 2021

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Concern has been expressed regarding the impacts of climate change on river ice and ice jam formation in cold regions. Ice jams are easily initiated in bends and narrow channels and cause disasters. In this study, observations and remote sensing monitoring are used to study the freeze-up ice jam formation of bends. Sediment transport and freezing process of the river interact, influencing bed changes profile and sedimentary budget. River ice processes, channel evolution, ice hydro-thermodynamics, and ice jam accumulation are explored. The results show that the channel topography determines the river thalweg, and that the channel elevation interacts with the river ice through sediment transport. The channel shrinkage increases the probability of ice jam, and the sharp bend is prone to ice jam formation. Under the effect of secondary circulation flow in the bend and in the outer bank, the juxtaposed freeze-up and the hummocky ice cover occur in the same location, and frazil ice accumulates under the junction of the main channel and the shoals. Affected by the increase of the hydraulic slope and the velocity downstream, open water reaches develops downstream of the ice accumulation. An open water section is emerged upstream of the bend, due to the ice deposition, and partly cut-off supply of the frazil.

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Internal structure and sources of selected ice jams on the lower Vistula River

Cited by 10 publications

References 28 publications

Urban geomorphology of the Vistula River valley in Warsaw

Urban geomorphology of the Vistula River valley in Warsaw

RiTiCE: River Flow Timing Characteristics and Extremes in the Arctic Region

Freeze-Up Ice Jam Formation in the River Bend, a Case Study on the Inner Mongolia Reach of Yellow River

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