Impact of Jordanelle Dam on sedimentological and ecohydrological regimes of the Provo River, Utah, USA

Walther, Suzanne C.; Martinez, Adriana E.; Greenfield, B. K.

doi:10.1080/15715124.2021.1961793

Cited by 2 publications

(2 citation statements)

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“…Meanwhile, large reservoirs decrease flow peak magnitude and frequency, but also act as barriers to sediment flux and aquatic fauna mobility. With trapped sediments and less high flows, streambed geomorphology stabilizes over time [4][5][6]. A fluvial landscape that is more simplified and disconnected from a floodplain hosts less suitable habitats for aquatic species [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…With trapped sediments and less high flows, streambed geomorphology stabilizes over time [4][5][6]. A fluvial landscape that is more simplified and disconnected from a floodplain hosts less suitable habitats for aquatic species [6][7][8]. Moreover, large reservoirs require high maintenance costs [9,10], while large space and costs decrease viability of new constructions.…”

Section: Introductionmentioning

confidence: 99%

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Location Matters: A Framework to Investigate the Spatial Characteristics of Distributed Flood Attenuation

Antolini

Tate

2021

Water

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Distributed attenuation in flood management relies on small and low-impact runoff attenuating features variously distributed within a catchment. Distributed systems of reservoirs, natural flood management, and green infrastructure are practical examples of distributed attenuation. The effectiveness of attenuating features lies in their ability to work in concert, by reducing and slowing runoff in strategic parts of the catchment, and desynchronizing flows. The spatial distribution of attenuating features plays an essential role in the process. This article proposes a framework to place features in a hydrologic network, group them into spatially distributed systems, and analyze their flood attenuation effects. The framework is applied to study distributed systems of reservoirs in a rural watershed in Iowa, USA. The results show that distributed attenuation can be an effective alternative to a single centralized flood mitigation approach. The different flow peak attenuation of considered distributed systems suggest that the spatial distribution of features significantly influences flood magnitude at the catchment scale. The proposed framework can be applied to examine the effectiveness of distributed attenuation, and its viability as a widespread flood attenuation strategy in different landscapes and at multiple scales.

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