Quantifying erosion hazards and economic damage to critical infrastructure in river catchments: Impact of a warming climate

Li, Xiaorong; Cooper, James R.; Plater, Andrew J.

doi:10.1016/j.crm.2021.100287

Cited by 11 publications

(5 citation statements)

References 48 publications

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“…In the south and east, there is more of a mixed picture [10, 21], with considerable uncertainty in the amount of change. The projected increase in flooding increases the erosion risk to bridges and other infrastructure [22].…”

Section: Infrastructurementioning

confidence: 99%

Future Changes in Indicators of Climate Hazard and Resource in the UK

Arnell,

Dorling,

Fowler

et al. 2023

Quantifying Climate Risk and Building Resilience in the UK

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The UK Climate Resilience Programme (UKCR) funded several projects that have calculated how climate change is likely to affect climate hazards and resources across the UK, using the latest UK Climate Projections (UKCP18). Under a high emissions scenario, heatwaves and high temperature extremes become more frequent across the UK, leading to an increase in human mortality, animal heat stress, potato blight, wildfire danger and damage to road and rail infrastructure. Cold weather extremes continue to occur but become less frequent. Also under high emissions, the growing season starts earlier, lasts longer and is warmer; this is particularly beneficial for grassland and viticulture, but the chance of summer drought and dry soils increases. The precise effects vary across different agricultural systems. With respect to rainfall, high hourly and daily totals become more frequent, leading to a greater chance of flash flooding. River floods become more frequent in the north and west of the UK, but low river flows and droughts also become more frequent, and water quality in upland water sources declines. The actual size of the change in risk is uncertain, primarily due to uncertainty in exactly how rainfall will change. There are large differences in change in risk across the UK. However, the actual size of the change in risk is uncertain, primarily due to uncertainty in exactly how rainfall will change.

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Section: Infrastructurementioning

confidence: 99%

Future Changes in Indicators of Climate Hazard and Resource in the UK

Arnell,

Dorling,

Fowler

et al. 2023

Quantifying Climate Risk and Building Resilience in the UK

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“…These floods affect residential areas, plantations, and tourist areas located around the river. Furthermore, sedimentation in the river, urban drainage, and water structures can also result in high maintenance costs and reduce the resilience of these structures to floods [12]. Additionally, land erosion can decrease soil production and hydrological functions (environmental degradation) [13]- [15].…”

Section: Introductionmentioning

confidence: 99%

Estimation of Soil Erosion Hazard in The Simpo Subwatershed, Indonesia

Fauzi,

Refika,

Azmeri

et al. 2024

E3S Web Conf.

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River siltation caused by sedimentation in the downstream area of Simpo River, Juli Sub-district, Bireuen Regency, is suspected to occur due to increased land erosion. The siltation leads to a decrease in river capacity and triggers overflow (flooding) during the rainy season. This affects residential areas, plantations, and tourist areas around the river. This research aims to estimate the rate of land erosion and map the Erosion Hazard Level (EHL) occurring in the Simpo Subwatershed. The estimation is carried out with the Universal Soil Loss Equation (USLE) method based on the Geographic Information System (GIS). The data used includes 10 years of monthly rainfall data, soil type maps, Digital Elevation Model (DEM) data, and land cover maps. Based on the calculation results, the rate of land erosion is found to be 52592.9 tons/ha/year. Furthermore, the erosion hazard in the Simpo Subwatershed ranges from low to high levels. The EHL in the subwatershed is dominated by the High-Moderate category, reaching 38.1%. Most of the areas affected by this erosion category are spatially located in the upstream area with moderately steep slopes (15–25%), primarily consisting of plantation areas. This indicates that soil conservation measures need to be adopted in the region.

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“…Lane's (1955) balance concept implies that alluvial channel adjustments are driven by imbalances between the quantity of sediment input to the reach (supply) and the quantity that can be transferred downstream (capacity); channels with excess sediment supply are likely to experience deposition‐dominated adjustment while those with excess sediment transport capacity are likely to experience erosion‐dominated adjustment. These imbalances can have important implications for the management of flood risk (Naulin et al, 2015; Rinaldi et al, 2009; Stover & Montgomery, 2001), damage to infrastructure in the river corridor (Bowman et al, 2021; Feeney et al, 2022; Li et al, 2021) and ecological status (Ekka et al, 2020; Hauer et al, 2018; Hendry et al, 2003; Lorenz et al, 2004; Soulsby et al, 2001; Wohl et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Stream power indices correspond poorly with observations of alluvial river channel adjustment

Parker

Davey

2023

Earth Surf Processes Landf

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A variety of stream power‐based approaches for predicting catchment‐scale alluvial channel adjustment have been developed. There is an international interest in applying these to inform river catchment management. However, there is some uncertainty regarding their ability to make consistently accurate predictions. This study evaluates the performance of a range of stream power indices for predicting observed channel adjustment. Remotely sensed data were used to generate 33 different stream power indices every 50 m across the networks of five test catchments. The performances of the indices were evaluated by comparing them against observations of erosion and deposition‐dominated channels extracted from the UK's River Habitat Survey (RHS) database. A selection of metrics for evaluating the performance of the indices were calculated. The key finding from this study is that the stream power indices were poorly associated with the observations of alluvial channel adjustment. It is not clear whether this poor association is due to limitations with stream power indices or the suitability of the RHS observations. However, this is not the first study to find a weak association between stream power and observed adjustment. Therefore, caution is recommended to anyone hoping to take advantage of the practicability of stream power indices until further testing is applied using alternative observation datasets. An additional finding from this study is the inconsistency of outcomes between different measures of model performance. It is recommended that future studies also employ multiple model performance measures rather than relying on accuracy alone.

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Quantifying erosion hazards and economic damage to critical infrastructure in river catchments: Impact of a warming climate

Cited by 11 publications

References 48 publications

Future Changes in Indicators of Climate Hazard and Resource in the UK

Future Changes in Indicators of Climate Hazard and Resource in the UK

Estimation of Soil Erosion Hazard in The Simpo Subwatershed, Indonesia

Stream power indices correspond poorly with observations of alluvial river channel adjustment

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