Historical Storminess and Hydro-Geological Hazard Temporal Evolution in the Solofrana River Basin—Southern Italy

Longobardi, Antonia; Diodato, Nazzareno; Mobilia, Mirka

doi:10.3390/w8090398

Cited by 9 publications

(4 citation statements)

References 38 publications

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“…The annual average rainfall is in the order of 1200 mm/year, with a concentration of maximum daily precipitation in the late summer-autumn period. According to Longobardi et al [56], this concentration coincides with the highest frequency of geo-hydrological events that in the 1951-2014 time period affected Montoro and other neighboring villages. The climatic conditions allow a well-developed vegetation cover to be formed by Mediterranean shrubs mixed with chestnut and oak trees.…”

Section: Study Areamentioning

confidence: 85%

Characterizing Consecutive Flooding Events after the 2017 Mt. Salto Wildfires (Southern Italy): Hazard and Emergency Management Implications

Esposito¹,

Parodi²,

Lagasio³

et al. 2019

Water

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Every summer, wildfires affect thousands of steep watersheds in Italy, causing the partial or complete destruction of vegetation, and changes in soil hydraulic properties. Such effects alter the hydrologic response of watersheds, increasing post-fire debris and sediment-laden flow hazard. This study characterizes the most relevant predisposing and triggering factors for a sequence of four post-fire flooding events, which, in the late summer-autumn of 2017, affected Montoro village in southern Italy. This research work consists of a fire severity assessment based on multispectral satellite images, characterization of meteorological systems and related flood-triggering rainfall, and provides an overview of the damage that occurred in the repeatedly affected urban area using crowdsourced data. The research findings demonstrate that the analyzed area burned with moderate-high (64.4%) and low severity (35.6%) levels. All the flooding events were triggered by rainfall evaluated as non-extreme, but with relevant peak intensities (I10 and I30), associated with the first convective storms impacting the burned watersheds. The crowdsourced data highlight the fact that roads and buildings on footslopes were inundated by mud and debris transported by rapid flows. The study identifies a clear relationship between wildfires and flooding processes and provides useful information for hazard assessment and emergency management operations.

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Section: Study Areamentioning

confidence: 85%

Characterizing Consecutive Flooding Events after the 2017 Mt. Salto Wildfires (Southern Italy): Hazard and Emergency Management Implications

Esposito¹,

Parodi²,

Lagasio³

et al. 2019

Water

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show abstract

“…if API > 20 mm →→ α = 1.26 (9) assuming that for over saturated systems (API > 20 mm) AET rates are no longer dependent on soil water content but they are a constant percentage of PET [29]. The Advection-Aridity model [27] calculates AET from PET predicted by coupled Priestley-Taylor and Penman equations, according to the formula [29]:…”

Section: Modelling A-priori Actual Evapotranspiration (Aet)mentioning

confidence: 99%

“…Green roofs (GRs), within the much wider context of GI, could represent a flexible solution to this problem [3]. Built at relative low costs on rooftops, extensive GRs remove a large fraction of impervious surfaces from the urban hydrological cycle, thereby providing the mentioned benefits [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Including A-Priori Assessment of Actual Evapotranspiration for Green Roof Daily Scale Hydrological Modelling

Mobilia

Longobardi

Sartor

2017

Water

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Abstract:In the last decades, there has been a widespread implementation of Green Infrastructures worldwide. Among these, green roofs appear to be particularly flexible sustainable drainage facilities. To predict their effectiveness for planning purposes, a tool is required that provides information as a function of local meteorological variables. Thus, a relatively simple daily scale, one-dimensional water balance approach has been proposed. The crucial evapotranspiration process, usually considered as a water balance dependent variable, is replaced here by empirical relationships providing an a-priori assessment of soil water losses through actual evapotranspiration. The modelling scheme, which under some simplification can be used without a calibration process, has been applied to experimental runoff data monitored at a green roof located near Bernkastel (Germany), between April 2005 and December 2006. Two different empirical relationships have been used to model actual evapotranspiration, considering a water availability limited and an energy limited scheme. Model errors quantification, ranging from 2% to 40% on the long-term scale and from 1% to 36% at the event scale, appear strongly related to the particularly considered relationship.

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“…One of the consequences of the climate change is the increase in the occurrence and intensity of heavy rainfall events. This condition leads to more frequent and severe urban flooding caused by the increasing stormflow volumes that exceed the sewers capacity [1][2][3]. In order to mitigate the risk of flooding in urban areas, sustainable urban drainage strategies have been proposed, and among these the green roofs [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

A Comparison between Conceptual and Physically Based Models in Predicting the Hydrological Behavior of Green Roofs

Mobilia

Longobardi

2019

The 4th International Electronic Conference on Water Sciences

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The evolving climate conditions contribute to increase flooding risk in urban areas. Green roofs are effective tools to control and manage stormwater runoff. With the aim to prevent these damaging events, an accurate modelling of the response of green roofs to storm events becomes essential. The goal of this research is to compare the accuracy of two hydrological models in predicting the behavior of two green roof test beds in terms of runoff production. The test beds are located in the campus of University of Salerno, in a typical Mediterranean climate and they differ for the composition of the drainage layer. The selected models are the SWMM model and the Nash model. They have been calibrated against hourly data of twenty-five rainfall-runoff events observed at the experimental site and compared using a number of goodness of fit indices. The Nash cascade model results to be a very simple but effective approach. No substantial differences can be observed in the behavior of the two green roof plots though they differ for the design characteristics. Finally, the existence of a relationship between the errors and the rainfall characteristics has been found.

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Historical Storminess and Hydro-Geological Hazard Temporal Evolution in the Solofrana River Basin—Southern Italy

Cited by 9 publications

References 38 publications

Characterizing Consecutive Flooding Events after the 2017 Mt. Salto Wildfires (Southern Italy): Hazard and Emergency Management Implications

Characterizing Consecutive Flooding Events after the 2017 Mt. Salto Wildfires (Southern Italy): Hazard and Emergency Management Implications

Including A-Priori Assessment of Actual Evapotranspiration for Green Roof Daily Scale Hydrological Modelling

A Comparison between Conceptual and Physically Based Models in Predicting the Hydrological Behavior of Green Roofs

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