Ice-jam flood research: a scoping review

Rokaya, Prabin; Budhathoki, Sujata

doi:10.1007/s11069-018-3455-0

Cited by 28 publications

(15 citation statements)

References 146 publications

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“…The land-and bedfast ice influence channel morphology by protecting river bars from erosion and hindering sediment transport in winter (McNamara and Kane, 2009) but also by intensifying erosion and sediment transport during the ice break-up in spring (Walker and Hudson, 2003;Piliouras and Rowland, 2020). Energetic high-water stands during ice break up encounter a delta whose channels are still frozen, which can result in ice jams and occasional flooding (Rokaya et al, 2018b;Rokaya et al, 2018a). Routing of water within a delta during this period may vary greatly from year to year and include sub-and superice flow.…”

Section: Introductionmentioning

confidence: 99%

Serpentine (Floating) Ice Channels and their Interaction with Riverbed Permafrost in the Lena River Delta, Russia

et al. 2021

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Arctic deltas and their river channels are characterized by three components of the cryosphere: snow, river ice, and permafrost, making them especially sensitive to ongoing climate change. Thinning river ice and rising river water temperatures may affect the thermal state of permafrost beneath the riverbed, with consequences for delta hydrology, erosion, and sediment transport. In this study, we use optical and radar remote sensing to map ice frozen to the riverbed (bedfast ice) vs. ice, resting on top of the unfrozen water layer (floating or so-called serpentine ice) within the Arctic’s largest delta, the Lena River Delta. The optical data is used to differentiate elevated floating ice from bedfast ice, which is flooded ice during the spring melt, while radar data is used to differentiate floating from bedfast ice during the winter months. We use numerical modeling and geophysical field surveys to investigate the temperature field and sediment properties beneath the riverbed. Our results show that the serpentine ice identified with both types of remote sensing spatially coincides with the location of thawed riverbed sediment observed with in situ geoelectrical measurements and as simulated with the thermal model. Besides insight into sub-river thermal properties, our study shows the potential of remote sensing for identifying river channels with active sub-ice flow during winter vs. channels, presumably disconnected for winter water flow. Furthermore, our results provide viable information for the summer navigation for shallow-draught vessels.

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Section: Introductionmentioning

confidence: 99%

Serpentine (Floating) Ice Channels and their Interaction with Riverbed Permafrost in the Lena River Delta, Russia

et al. 2021

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“…1), and better understanding of the mechanisms involved in ice jam formation. The damages from ice jam floods cause annual economic costs on the order of several hundred millions EUR per year in North America and Siberia (Prowse et al, 2007;Rokaya et al, 2018b, a). Finally, while substantially fewer in number, we speculate that nearsimultaneous overpasses in tropical and temperate rivers could similarly be exploited, tracking sediment or floating matter in place of ice (Kääb and Leprince, 2014).…”

Section: Discussion Conclusion and Outlookmentioning

confidence: 72%

River ice and water velocities using the Planet optical cubesat constellation

Kääb¹,

Altena²,

Mascaro³

2019

Preprint

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Abstract. The PlanetScope constellation consists of ~ 150 optical cubesats that are evenly distributed like strings of pearls in two orbital planes and scan the Earth's land surface once per day with ~ 3 m spatial image resolution. Subsequent cubesats in each of the orbital planes image the Earth surface with a nominal time lapse of ~ 90 s between each other, which produces near-simultaneous pairs of scenes over the across-track overlaps of the cubesat swaths. We exploit this short time lapse between subsequent Planet cubesat images to track river ice floes on Northern rivers as indicators of water surface velocities. The method is demonstrated for a 60 km long reach of the Amur River in Siberia, and a 200 km long reach of the Yukon River, Alaska. The accuracy of the estimated horizontal surface velocities is on the order of ±0.01 m s−1. The application of our approach is complicated by cloud cover and low sun angles at high latitudes during the periods where rivers typically carry ice floes, and by the fact that the near-simultaneous swath overlaps by design do not cover the complete Earth surface. Still, the approach enables direct remote sensing of river surface velocities over many cold-region rivers and several times per year – much more frequent and over much larger areas than feasible so far, if at all. We find that freeze-up conditions seem in general to offer ice floes that are more suitable for tracking, and over longer time periods, compared to typical ice break-up conditions. The coverage of river velocities obtained could be particularly useful in combination with satellite measurements of river area, and river surface height and slope.

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“…They provide a scheme to sustainably manage a regulated river system to both (i) mitigate ice-jam flood risk at communities and (ii) promote ice-jam flooding to help replenish moisture and sediment supply of an inland delta's aquatic and terrestrial ecosystem [71]. We are fortunate to have a paper in this issue that delves, on a conceptual level, on the management of ice-jam floods to better sustain socio-economic and socio-ecological systems [72]. They provide a framework for such a management strategy that calls for a more interdisciplinary approach to ice management, which integrates social, economic, and ecological perspectives.…”

Section: Sustainabilitymentioning

confidence: 99%

River and Lake Ice Processes—Impacts of Freshwater Ice on Aquatic Ecosystems in a Changing Globe

Baulch

Cavaliere

2018

Water

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This special issue focuses on the effects of ice cover on surface water bodies, specifically rivers and lakes. Background information on the motivation of addressing this topic is first introduced with some selected references highlighting key points in this research field. A summary and synthesis of the eleven contributions is then provided, focusing on three aspects that provide the structure of the special issue: Physical processes, water quality, and sustainability. We have placed these contributions in the broader context of the field and identified selected knowledge gaps which impede our ability both to understand current conditions, and to understand the likely consequences of changing winters to the diversity of freshwater ecosystems subject to seasonal ice cover.

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Ice-jam flood research: a scoping review

Cited by 28 publications

References 146 publications

Serpentine (Floating) Ice Channels and their Interaction with Riverbed Permafrost in the Lena River Delta, Russia

Serpentine (Floating) Ice Channels and their Interaction with Riverbed Permafrost in the Lena River Delta, Russia

River ice and water velocities using the Planet optical cubesat constellation

River and Lake Ice Processes—Impacts of Freshwater Ice on Aquatic Ecosystems in a Changing Globe

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