RESULTS FROM 1 TO 7 OF 7

2021, Articolo in rivista, ENG

Landslides along the Lago Maggiore western coast (northern Italy): intense rainfall as trigger or concomitant cause?

Ciampittiello M.; Saidi H.; Dresti C.; Coluccino M.; Turconi L.; Little W.W.; Luino F.

The Lago Maggiore catchment is characterized by medium to high altitude (up to 4633 m a.s.l. with a median of 1270 m a.s.l.), high precipitation (~ 1700 mm/yr), and brittle tectonic deformation of impermeable rocks, such as granite and gneiss, that are characterized by a predisposition to slope failure. We analysed daily rainfall data associated with 38 landslides that occurred between 1980 and 2017 from meteorological stations placed into four sub-basins. The purpose was to determine whether or not extreme rainfall events exceeded landslides thresholds reported by previous studies. A statistical analysis using the RClimDex package was done, to verify changes in extreme rainfall over time. A spatial approach using Inverse Distance Weighting (IDW) in QGIS was used to extrapolate rainfall data specific to landslide areas, as well as GIS techniques and processing tools to conduct geomorphic analyses. Finally, a multivariate analysis, (general linear model), was used to understand associations between variables (landslide types, lithology, valley, elevation, slope, land use, rainfall, and the presence of rivers, roads, paths, and buildings), known to affect the generation of landslides. Results show extreme rainfall events to be a secondary factor in the triggering of landslides, whereas the most significant factors are presence of building, proximity to rivers and lithology. It was found that intense rainfall is a concomitant cause to landslides in some instances but does not play a role in others.

Natural hazards (Dordr., Online)

DOI: 10.1007/s11069-021-04626-8

2018, Poster, ENG

Progresses in the investigation of the relation between climate and slope instability processes at high-elevation

Paranunzio R., Chiarle M., Laio F., Nigrelli G., Turconi L., Luino F

The ongoing debate about the effects of global warming in glacial and periglacial areas implies a lack of knowledge about the role of climate elements on the cryosphere dynamics. Slope instability processes are one of the major indicators of a changing climate at high elevation, but we know little about the relation between climate and slope instability processes. In this work, we briefly introduce our activities and developments on this issue. We collected more than 440 slope failures events at high-elevation sites in the Italian Alps from year 2000 on. By means of a statistical-based method, we detect the possible anomalies of the climate variables at the date when slope instability events occurred. Based on the preliminary outcomes of this work, we expect to be able to identify the variables which acted as potential triggers/drivers of slope instability processes in (peri)glacial and permafrost areas.

5th European Conference on Permafrost, EUCOP, Chamonix, 23/06/2018 - 01/07/2018

2017, Presentazione, ENG

Slope instabilities occurred at high elevation in the Italian Alps in 2016: Regional landscape fragility and meteorological situation

Marta Chiarle (1), Daniele Cat Berro (2), Luca Mercalli (2), Giovanni Mortara (1), and Guido Nigrelli (1)

The Italian side of the Alps includes some of the most fascinating and, at the same time, fragile landscapes of the European Alps (e.g. the Mont Blanc Massif, the Matterhorn and the Dolomites). The relatively low latitude and the prevalence of the exposure to the South, together with a decrease of approximately 10% of the precipitation in the last 100 years, have exacerbated more than in other parts of the European Alps the consequences of climate warming on the cryosphere. It is a fact that many Italian ridges extend in the lower fringe of the permafrost and that glacier shrinkage since the end of the Little Ice Age has been dramatic, up to the almost complete deglaciation of most of the south-western and eastern Italian Alps. In view of this, and of the fact that 2016 has been declared as the warmest year on record globally, we analyze the natural instability events that occurred in 2016 in the Italian Alps at high elevation (> 1500 m a.s.l.). More than 20 events have been reported in the period March-October, mostly in the western and eastern Italian Alps. Rockfalls significantly outweigh other types of instabilities, but ice falls, glacial outburst floods and debris flows have also been documented. The properties and spatial occurrence of these instability processes will be discussed, as well as the synoptic meteorological context in which they developed, in order to contribute to the discussion on how ongoing environmental changes are influencing the response of glaciated and recently deglaciated slopes to meteorological forcing, and thus hazard occurrence.

EGU General Assembly 2017, Vienna (A), 24-28/04/2017

2017, Abstract in rivista, ENG

Slope instabilities occurred at high elevation in the Italian Alps in 2016: regional landscape fragility and meteorological framework

Marta Chiarle (1), Daniele Cat Berro (2), Luca Mercalli (2), Giovanni Mortara (1), and Guido Nigrelli (1)

The Italian side of the Alps includes some of the most fascinating and, at the same time, fragile landscapes of the European Alps (e.g. the Mont Blanc Massif, the Matterhorn and the Dolomites). The relatively low latitude and the prevalence of the exposure to the South, together with a decrease of approximately 10% of the precipitation in the last 100 years, have exacerbated more than in other parts of the European Alps the consequences of climate warming on the cryosphere. It is a fact that many Italian ridges extend in the lower fringe of the permafrost and that glacier shrinkage since the end of the Little Ice Age has been dramatic, up to the almost complete deglaciation of most of the south-western and eastern Italian Alps. In view of this, and of the fact that 2016 has been declared as the warmest year on record globally, we analyze the natural instability events that occurred in 2016 in the Italian Alps at high elevation (> 1500 m a.s.l.). More than 20 events have been reported in the period March-October, mostly in the western and eastern Italian Alps. Rockfalls significantly outweigh other types of instabilities, but ice falls, glacial outburst floods and debris flows have also been documented. The properties and spatial occurrence of these instability processes will be discussed, as well as the synoptic meteorological context in which they developed, in order to contribute to the discussion on how ongoing environmental changes are influencing the response of glaciated and recently deglaciated slopes to meteorological forcing, and thus hazard occurrence.

Geophysical research abstracts (Online) 19, pp. 8498–8498

2016, Articolo in rivista, ENG

The "Piano dell'Acqua" sinkholes (San Basile, Northern Calabria, Italy)

IOVINE G., VENNARI C., GARIANO S.L., CALOIERO T., LANZA G., NICOLINO N., SURIANO S., FERRARO G. & PARISE M.

The occurrence of sinkholes not directly related to karst has been determined in several areas worldwide in recent years. These phenomena may be particularly dan- gerous to humans and infrastructure due to their subtle origin and need to be carefully examined. In this work, we describe five sinkholes recently identified in a hilly setting of Southern Italy characterized by Pliocene conglomerate and sand, and variously dislocated by tectonic structures. The sinkholes were examined by different methods (in- terpretation of multi-temporal aerial photos, geological, geomorphological and geophysical surveys). An historical analysis was performed to collect and critically evaluate information regarding the age of the phenomena. Based on this information, it can be conjectured that two of the five sinkholes developed during the 2000-2001 winter; two of the remaining probably originated during the 70s; the last one opened sometime between February 2001 and November 2007. Based on such chronology, attempts have been performed to identify the likely triggers, through hydrological and seismic analyses. In both cases, no im- mediate correlation could be found. The origin of the studied phenomena remains uncertain, and may be related to sub-cutaneous erosion, in an area that is renowned to be rich in groundwater. Local changes in the water table, re- lated to climate and/or man-induced activities, may have triggered the development of the cover suffusion-type sinkholes. The present work highlights the potential for this type of phenomena to occur in geological settings without the direct presence of soluble rocks at the surface, a con- dition quite common in Southern Italy, and the need to carry out further studies in order to better comprehend their mechanisms of origin and successive evolution, and to properly evaluate the related hazard.

Bulletin of engineering geology and the environment (Print) 75 (1), pp. 37–52

DOI: 10.1007/s10064-015-0737-6

2014, Articolo in rivista, ENG

Geomorphological fragility and mass movements of the archaeological area of "Torre di Satriano" (Basilicata, Southern Italy)

Pascale, S. a , Bellanova, J. b, Losasso, L. a, Perrone, A. b, Giocoli, A. bc, Piscitelli, S. b, Murgante, B. a, Sdao, F. a

This paper describes the results of geomorphological and stability studies carried out in the archaeological site of Satriano di Lucania (Basilicata, Southern Italy), where an important sanctuary was built during the 4th Century B.C. This study is based on a mutidipliscinarity approach including accurate interpretation of aerial photos, geomorphological and geoelectrical surveys , and stability analyses. A description of the stability condition of the archaeological site with reference to the landslide that affects the sacred complex is provided in this work.

Lecture notes in computer science 8582 (4), pp. 495–510

DOI: 10.1007/978-3-319-09147-1_36

2002, Contributo in atti di convegno, ENG

Differential SAR interferometry for the study of slope instability at Maratea, Italy

Berardino, P. and Costantini, M. and Franceschetti, G. and Iodice, A. and Pietranera, L. and Rizzo, V.

In this paper we explore the use of differential synthetic aperture radar interferometry to improve our knowledge of the slope instability of a well investigated area (the Maratea Valley) affected by continuous slow movements. In particular, by using this technique we analyse the time evolution of terrain movements from 1997 to 2000, a time interval already explored using distancemeter (EDM) and GPS measurements. Results obtained by means of different techniques have been compared, and all the acquired data turn out to be consistent.

IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2002)/24th Canadian Symposium on Remote Sensing, TORONTO, CANADA, JUN 24-28, 2002
InstituteSelected 0/5
    IRPI, Istituto di ricerca per la protezione idrogeologica (2)
    IMAA, Istituto di metodologie per l'analisi ambientale (1)
    IREA, Istituto per il rilevamento elettromagnetico dell'ambiente (1)
    IRSA, Istituto di ricerca sulle acque (1)
    ISAFoM, Istituto per i sistemi agricoli e forestali del mediterraneo (1)
AuthorSelected 0/18
    Chiarle Marta (3)
    Nigrelli Guido (3)
    Mortara Giovanni (2)
    Turconi Laura (2)
    Bellanova Jessica (1)
    Berardino Paolo (1)
    Caloiero Tommaso (1)
    Ciampittiello Marzia (1)
    Dresti Claudia (1)
    Gariano Stefano Luigi (1)
TypeSelected 0/5
    Articolo in rivista (3)
    Abstract in rivista (1)
    Contributo in atti di convegno (1)
    Poster (1)
    Presentazione (1)
Research programSelected 0/3
    DTA.AD003.104.001, Ruolo dei cambiamenti climatici nella morfogenesi dell'ambiente glaciale-periglaciale e analisi dei rischi associati (3)
    TA.P05.006.013, Pericoli naturali e antropici in ambiente carsico e sviluppo di strategie di mitigazione del rischio (1)
    TA.P06.006.006, GdR:Metodologie Integrate per lo studio di suolo e sottosuolo (1)
EU Funding ProgramSelected 0/0
No values ​​available
EU ProjectSelected 0/0
No values ​​available
YearSelected 0/6
    2017 (2)
    2002 (1)
    2014 (1)
    2016 (1)
    2018 (1)
    2021 (1)
LanguageSelected 0/1
    Inglese (7)
Keyword

Slope instability

RESULTS FROM 1 TO 7 OF 7