Short-term evolution of an active basin–fan system, Aspromonte, south Italy

Antronico, Loredana; Greco, Roberto; Robustelli, Gaetano; Sorriso‐Valvo, Marino

doi:10.1016/j.geomorph.2014.10.013

Cited by 14 publications

(17 citation statements)

References 24 publications

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“…Although not recent, these photos are extremely important because some landforms (including alluvial fans) are not currently recognizable due to the degree of recent urbanization and land utilization. Further information resulted from the scientific and technical literature on the topic, from the analysis of recent documents, and from field experience of the territory acquired by the authors during previous studies in Calabria (Antronico, Greco, Robustelli, & Sorriso-Valvo, 2015;Sorriso-Valvo et al, 1998) (Figure 5 and Table 1). …”

Section: Methodsmentioning

confidence: 99%

Recent alluvial fans in Calabria (southern Italy)

Antronico

Greco²,

Sorriso‐Valvo

2015

Journal of Maps

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The present work aims at identifying the location of recent debris-flow-dominated alluvial fans at a regional scale in Calabria (southern Italy). Here, alluvial fans widely occur as both tributary junction and mountain front types and represent a potential hazard to human settlements and transportation links near or on them. The alluvial fans inventory map at 1:250,000 scale was obtained by means of a stereoscopic interpretation of aerial photos shot in [1954][1955]. To establish the activity of the detected alluvial fans, recent documentary evidence (scientific reports, local newspapers and journals, and Internet blogs) on debris-flow events and historical satellite imagery available on Google Earth, covering the period 2001-2014, were analysed. Subsequently, the activity of the alluvial fans over the last 60 years has been divided into four classes. A total of 1170 alluvial fans have been mapped, 545 (46.58%) of which have been active over the last 60 years. The alluvial fans with a length from apex to toe , 200 m predominate, constituting 70% of the total. In the feeder basins, the dominant lithologies are represented by medium to high-grade metamorphic rocks and igneous rocks, gravel and debris and, shales and low-grade metamorphic rocks. Finally, the inventory map shows that 103 settlements are located on alluvial fans, 18 of which are active or have been active during the last 60 years. This map is a useful tool for land planning policy and for the assessment of risk deriving from debris-flows on the alluvial fans of the Calabria region.

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Section: Methodsmentioning

confidence: 99%

Recent alluvial fans in Calabria (southern Italy)

Antronico

Greco²,

Sorriso‐Valvo

2015

Journal of Maps

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“…Multi‐temporal inventories spanning a few years or decades of activity imply landslide rates of between 3.3 and 1.4 × 10 −4 landslides yr −1 km −2 (Petrucci and Polemio, ; Terranova et al ., ; Petrucci et al ., ; Polemio and Petrucci, ; Falconi et al ., ; Polemio and Lonigro, ; Conforti et al ., ; Antronico et al ., ; Goswami et al ., ), although these inventories may be biased towards large, damaging events. A few of these studies provide estimates of landslide‐related catchment erosion rates: 0.46 mm yr −1 (Lazzari and Schiattarella, ), 0.26 mm yr −1 (Antronico et al ., ), and 2.8–3.4 mm yr −1 , albeit for a short‐time period (Goswami et al ., ). Cosmogenic nuclide‐derived catchment erosion rates in Calabria are 0.1–1 mm yr −1 , with a mean value of ~0.5 mm yr −1 (Cyr et al ., ; Olivetti et al ., ); while for the southern Apennines, 10 Be erosion rates and volumetric erosion estimates are ~0.1–0.5 mm yr −1 , with a mean value of ~0.3 mm yr −1 (Amato et al ., ; Lazzari and Schiattarella, ; Gioia et al ., ).…”

Section: Geologic Settingmentioning

confidence: 99%

“…Conforti et al ., , ; Bianchini et al ., ; Goswami et al ., ; Santangelo et al ., ). There is a large body of risk‐oriented and monitoring landslide studies in southern Italy (e. g. Terranova et al ., ; Bianchini et al ., ; Giocoli et al ., ), but few studies have evaluated landslides from a landscape evolution or sediment supply perspective (Lazzari and Schiattarella, ; Goswami et al ., , ; Santangelo et al ., ; Antronico et al ., ). Landslide frequency–area statistics have only been evaluated by Goswami et al .…”

Section: Geologic Settingmentioning

confidence: 99%

“…There is a large body of risk-oriented and monitoring landslide studies in southern Italy (e.g. Terranova et al, 2007;Bianchini et al, 2012;Giocoli et al, 2015), but few studies have evaluated landslides from a landscape evolution or sediment supply perspective (Lazzari and Schiattarella, 2010;Goswami et al, 2011Goswami et al, , 2016Santangelo et al, 2013;Antronico et al, 2015).…”

Section: Geologic Settingmentioning

confidence: 99%

“…Goswami et al (2011) found β = 1.94; while the data from Santangelo et al (2013) imply a β = 2.16, not dissimilar to the exponent found by Guzzetti et al (2002) in the central Apennines of β = 2.5. Multi-temporal inventories spanning a few years or decades of activity imply landslide rates of between 3.3 and 1.4 × 10 À4 landslides yr À1 km À2 (Petrucci and Polemio, 2000;Terranova et al, 2007;Petrucci et al, 2009;Polemio and Petrucci, 2010;Falconi et al, 2013;Polemio and Lonigro, 2013;Conforti et al, 2014;Antronico et al, 2015;Goswami et al, 2016), although these inventories may be biased towards large, damaging events. A few of these studies provide estimates of landslide-related catchment erosion rates: 0.46 mm yr À1 (Lazzari and Schiattarella, 2010), 0.26 mm yr À1 (Antronico et al, 2015), and 2.8-3.4 mm yr À1 ,…”

Section: Geologic Settingmentioning

confidence: 99%

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Lithological controls on hillslope sediment supply: insights from landslide activity and grain size distributions

Roda-Boluda

D’Arcy

McDonald

et al. 2018

Earth Surf Processes Landf

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The volumes, rates and grain size distributions of sediment supplied from hillslopes represent the initial input of sediment delivered from upland areas and propagated through sediment routing systems. Moreover, hillslope sediment supply has a significant impact on landscape response time to tectonic and climatic perturbations. However, there are very few detailed field studies characterizing hillslope sediment supply as a function of lithology and delivery process. Here, we present new empirical data from tectonically‐active areas in southern Italy that quantifies how lithology and rock strength control the landslide fluxes and grain size distributions supplied from hillslopes. Landslides are the major source of hillslope sediment supply in this area, and our inventory of ~2800 landslides reveals that landslide sediment flux is dominated by small, shallow landslides. We find that lithology and rock strength modulate the abundance of steep slopes and landslides, and the distribution of landslide sizes. Outcrop‐scale rock strength also controls the grain sizes supplied by bedrock weathering, and influences the degree of coarsening of landslide supply with respect to weathering supply. Finally, we show that hillslope sediment supply largely determines the grain sizes of fluvial export, from catchments and that catchments with greater long‐term landslide rates deliver coarser material. Therefore, our results demonstrate a dual control of lithology on hillslope sediment supply, by modulating both the sediment fluxes from landslides and the grain sizes supplied by hillslopes to the fluvial system. Copyright © 2017 John Wiley & Sons, Ltd.

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The Use of Airborne LiDAR Data in Basin-Fan System Monitoring: An Example from Southern Calabria (Italy)

Antronico

Allasia

Baldo

et al. 2015

Engineering Geology for Society and Territory - Volume 2

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To analyse morphologic and volumetric changes within an active basin-fan system of about 0.250 km 2 in Calabria (South Italy), we compare two high-resolution DTMs (50 cm) derived from aerial LiDAR surveys conducted in October 2012 and May 2013. The comparison allowed us to: (i) evaluate the magnitude of erosion-transport-sedimentation processes (ii) identify the extent of an active landslide within the feeder sub-basin, and (iii) confirm the fan, feeder channel and feeder basin dynamics obtained from previous works based on geological and geomorphological field surveys. The results demonstrate that the LiDAR techniques can be a useful tool for the monitoring of geomorphological changes in areas affected by severe erosion and depositional processes.

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Short-term evolution of an active basin–fan system, Aspromonte, south Italy

Cited by 14 publications

References 24 publications

Recent alluvial fans in Calabria (southern Italy)

Recent alluvial fans in Calabria (southern Italy)

Lithological controls on hillslope sediment supply: insights from landslide activity and grain size distributions

The Use of Airborne LiDAR Data in Basin-Fan System Monitoring: An Example from Southern Calabria (Italy)

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