Catastrophic flash flood triggered by an extreme rainfall event in El Rodeo village, January 2014. Northwestern Pampean Ranges of Argentina

Angillieri, María Yanina Esper; Perucca, Laura; Vargas, Nicolás

doi:10.1080/04353676.2016.1263022

Cited by 6 publications

(3 citation statements)

References 18 publications

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“…During floods, bridge damage and their consequent destruction can cause financial losses and disrupt aid to flooded areas due to the wreckage of transportation roads [1,2]. The registered social consequences generated after such extreme events can be irreparable if control measures were not previously and efficiently installed [3,4].…”

Section: Introductionmentioning

confidence: 99%

Experimental Design of Nature-Based-Solution Considering the Interactions between Submerged Vegetation and Pile Group on the Structure of the River Flow on Sand Beds

Miyab

Fazloula

Heidarpour

et al. 2022

Water

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Designing correct engineering infrastructures to reduce land degradation processes and considering natural elements to achieve this goal are key to correctly managing potential natural hazards affecting human activities and natural ecosystems. This research investigated the scour depth and velocity vectors around bridge piles with and without upstream vegetation protection. A Doppler velocity meter was used to measure velocity components in a channel 90 cm wide, 16 m long, and 60 cm high. Variable parameters were the number of bridge piles, the height, density, and width of vegetation upstream, as well as the distance between bridge piles. Using a triple pile group with a distance between piles of 10 cm and overall vegetation across the channel, the depth of the scour hole upstream of the first pile decreased by 40% compared to the single pile with no vegetation. This result shows the significant impact of using vegetation and pile groups to reduce scour around piles. Lower vertical velocity gradients, more consistent velocity vectors, reducing the downstream flow range, and restraining horseshoe vortexes and wake vortices were observed in utilizing vegetation. We confirmed that vegetation is an essential factor in changing the flow, transportation of sediment, and conserving ecological services in rivers.

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Section: Introductionmentioning

confidence: 99%

Experimental Design of Nature-Based-Solution Considering the Interactions between Submerged Vegetation and Pile Group on the Structure of the River Flow on Sand Beds

Miyab

Fazloula

Heidarpour

et al. 2022

Water

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“…Boulders of all sizes, including 2000 mm b-axis-of bed material were transported by the stream current. Several studies (Esper Angillieri et al, 2017;Eremchuk, 2015), and technical reports (Bravo, 2014)…”

Section: Introductionmentioning

confidence: 99%

The January 2014 Flashflood in the Ambato River (Catamarca, Argentina)- A Case Study of Megaboulders Fluvial Transport

Inbar¹,

Costello²,

Eremchuk³

2021

S. F. J. of Dev.

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Megaboulders mantle the steep channels of mountainous rivers, and moderate incision rates by increasing channel roughness. Direct measurement of the transport of boulders in natural rivers is difficult, therefore there are few field studies on the subject. The transportation of megaboulders downslope in catastrophic floods in urban environments releases a destructive power. This study analyses the Ambato river flood that occurred in Argentina in January 2014 with an assumed recurrence interval of 1:100 years. The flood was caused by concentrated rainfall in the upper basin, at an elevation of 4000 m. The Ambato river forms a boulder alluvial fan drained by episodic floods. The 2014 flood caused casualties and economic losses in the village of El Rodeo in the province of Catamarca. Several houses and a bridge were destroyed and vehicles were swept away. All bedload sizes- including megaboulders with 2000 mm b-axis- were transported during the flood. The empirical equation for stream power value and the unit bedload transport rate of megaboulders were validated. An assessment of boulder mobility is necessary to mitigate flow hazards in mountainous urban areas. The effects of climate change in semi-arid environments would be greater if they involved increased precipitation or more extreme rainstorms due to events such as El Niṅo.

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“…A disruption in the gentle curve usually in the shape of convex upward shows a knickpoint. The initiation event of knickpoint formation can be any number of different events, however, it commonly ranges from a dramatic change in base level through isostatic rebound, tectonic uplift, and a change in catchment area size possibly by a stream capture event, and to a local change in rock type (Berlin and Anderson 2007;Frankel et al 2007;Angillieri et al 2017).…”

Section: Introductionmentioning

confidence: 99%

A study of knickpoint surveys and their likely association with landslides along the Hunza River longitudinal profile

et al. 2019

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Mass wasting and tectonic uplift are the major factors, responsible for reshaping the northern Pakistan that contains the world's most steeply inclined mountainous regions including: Karakoram, Himalayas, and Hindukush Ranges. The role of GIS and remote sensing is inevitable to study the river geomorphology for the identification and evaluation of different mass wasting processes. digital elevation models (DEMs) are frequently used to extract the longitudinal profile of the rivers to identify the knickpoints and their related geomorphic attributes. For this study, ASTER DEM of 30 m spatial resolution satellite data was utilized to perform the geomorphological analysis of the longitudinal profile of the Hunza River in ArcGIS and Matlab environment. The Hunza River channel with having the watershed area of 13571 km 2 , has witnessed a number of historic landslide dams (i.e. Attabad, Ganesh and Boultar glacier, etc.) that blocked the main river channel at multiple sections in different episodes of time. These past landslides presumably preserved in the river channel as knickpoints at their respective locations. In this study, a total of 77 knickpoints were identified along the main stem of the river channel. The spatial locations of the extracted knickpoints and their normalized steepness index (ks) values were compared with the Hunza River landslide inventory map, lithologic contact, tectonic faults and historic landslides data. Furthermore, the likely role of these geomorphic factors was evaluated to ascertain their association with knickpoints formation. The results of this GIS-based geomorphic analysis of the river profile and subsequent field visit of the area revealed that the formation of landslide dams and their subsequent breaching is one of the major trigger factor of knickpoints along the channel. Such studies highlight the benefits of inexpensive remote sensing data and GIS tools to assess the likely role of various geomorphic features in the formation of significant knickpoints along the river profiles on a regional scale.

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Catastrophic flash flood triggered by an extreme rainfall event in El Rodeo village, January 2014. Northwestern Pampean Ranges of Argentina

Cited by 6 publications

References 18 publications

Experimental Design of Nature-Based-Solution Considering the Interactions between Submerged Vegetation and Pile Group on the Structure of the River Flow on Sand Beds

Experimental Design of Nature-Based-Solution Considering the Interactions between Submerged Vegetation and Pile Group on the Structure of the River Flow on Sand Beds

The January 2014 Flashflood in the Ambato River (Catamarca, Argentina)- A Case Study of Megaboulders Fluvial Transport

A study of knickpoint surveys and their likely association with landslides along the Hunza River longitudinal profile

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