1,721,043 research outputs found
The hydrological hazard and flooding damages due to anthropogenic activities in the Murgian karstic environment (Southern Italy).
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Coastal erosion and sediment deficit assessment at catchment basin scale: a case study from southern Italy.
No full textReply to the discussion on ‘Coastal and inland karst morphologies driven by sea level stands: a GIS based method for their evaluation’ by Filomena Canora, Dolores Fidelibus and Giuseppe Spilotro (2012)
No full textThe authors welcome the discussion concerning their paper
‘Coastal and inland karst morphologies driven by sea level
stands: a GIS based method for their evaluation’ by F. Canora, D. Fidelibus, G. Spilotro, made by J. De Waele and M. Parise.
It provides an opportunity to open a debate about the significance of geomorphological studies at different scales, both generally, and for the specific area of study (Murgia, Southern Italy)
Little Ice Age in the Taranto Area (Apulia, Southern Italy) [La piccola età glaciale nell'area di Taranto (Puglia, Italia)]
No full textNell’area di Taranto depositi marini terrazzati coprono i sedimenti fini di colmamento della Fossa Bradanica confinando l’acquifero carsico della Piattaforma carbonatica Apula. In tale contesto, le variazioni del livello del mare ed i suoi stazionamenti interagendo con i meccanismi idrogeologici, hanno contribuito a determinare dinamiche geomorfologiche ed idrogeologiche. Più in particolare, mentre gli studi geologici consentono una buona ricostruzione di tali processi nel lungo periodo, indagini storiche permettono un significativo riconoscimento di eventi determinati dalla Piccola Età Glaciale dello scorso millennio nell’area di interesse
Metodologie geomatiche per la misura delle variazioni della linea di costa in aree interessate da erosione costiera.
No full textRiassunto
Nel presente studio sono state analizzate le variazioni della linea di costa ionica della Basilicata, fra il fiume Sinni e il fiume Bradano, in un arco temporale di 135 anni, al fine di quantificare l’entità del fenomeno dell’erosione costiera e comprendere le tendenze evolutive di arretramento o accrescimento. L’analisi è stata condotta mediante l’utilizzo di cartografia storica risalente al 1870, foto aeree relative agli anni 1954, 1988 e 2000, e rilievi GPS realizzati nel 2005. I risultati dell’analisi hanno fornito palesi indicazioni del trend evolutivo del litorale, dimostrando l’efficienza della metodologia adottata nel quantificare il fenomeno, considerando la mancanza di un dataset omogeneo.
Abstract
In the present study an analysis of shoreline variations has been performed along the Ionian coast of the Basilicata Region between the mouths of the Sinni and Bradano Rivers, with the aim of understanding the morphologic dynamics of the littoral environment and quantify the amount of coastal erosion. The analysis has been performed using various data sources: historical cartography, aerial photographs and GPS surveys. The approach has proven to be helpful in quantifying the erosion phenomenon and its effects
Little Ice Age in the Taranto area (Apulia, Southern Italy)
No full textThe present study focuses on the key role that the interactions of the sea level changes and hydrogeological mechanisms played on the evolution of the interconnected dynamics of the actual geomorphological and hydrogeological system of the Taranto area, from the Quaternary glacial age to the last Little Ice Age
Anisotropy of hydraulic conductivity through shallow geophysical surveys
No full textA geophysical investigation, including surface seismic refraction and electrical resistivity
methods with radial scanning, was carried out at two test sites of the Apulia region (Italy), in carbonate and
evaporite environments characterized by karstic processes. The main aim of the studies was to test the
effectiveness of the above mentioned methods to highlight the anisotropy of hydraulic conductivity of the
rock masses on the base of accurate surface and subsurface analysis of the karstic features and flow
conditions. The electrical resistivity method provided useful indications about the nature of the void filler
(water or residual soils) along the fracture and joint families; the seismic refraction method gave, in a
fractured and karstified system, information on the loss of material on the base of fractures knowledge of pwaves
velocity, density and Poisson ratio of the intact material and of the joint enlargements filler. The
radial scanning configurations revealed very useful in giving a well based forecast of karst development
directions; the combination of different geophysical techniques allowed reducing uncertainty linked to
interpretation of discrete values of physical properties in jointed rock masses and evidencing the anisotropy
features
Basin modifications and coastal dynamics: the Ionic coast of the Basilicata region, flood effectiveness.
No full textHydrogeological implications of man-made agricultural transformations of the karstic soil textures of Alta Murgia (Puglia, Southern Italy).
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