Search results for " GIS"
showing 10 items of 161 documents
Valorizzazione energetica delle biomasse: un caso studio mediante GIS
2009
Dal CAD al GIS: il trasferimento di informazioni cartografiche
2005
L’utilizzo della cartografia nei GIS impone una riflessione sulle caratteristiche che essa deve possedere al fine di consentire le elaborazioni tipiche di questi sistemi e rende necessario verificare quali siano le informazioni che rimangono associate agli oggetti della classe al momento del caricamento dei dati, in formato DXF, all’interno di software GIS. Negli ultimi anni a livello internazionale sono state fissate norme tendenti a individuare linee guida per la definizione della struttura del contenuto semantico della cartografia numerica, delle caratteristiche geometriche e delle relazioni topologiche dell’informazione geografica.
Urban Growth and Real Estate Income. A Comparison of Analytical Models
2016
I processi di crescita urbana sono notoriamente complessi dipendendo da un’ampia varietà di fattori demografici, socio-culturali ed economici. L’analisi è ancora più complessa nelle aree metropolitane che sono il risultato di antichi processi di agglomerazione in una fase d’intenso accrescimento dell’insediamento e, più recentemente, della formazione di policentrismo urbano. L’investigazione richiede l’acquisizione, l’analisi e l’elaborazione d’idonee informazioni a livello delle unità territoriali omogenee, basandosi su modelli consolidati o su nuovi protocolli da verificare. Il presente contributo analizza la crescita urbana secondo un approccio di piccola scala, individuando i distretti …
GeoHeritage-GIS: il sito web del patrimonio monumentale del Centro Storico di Palermo
2009
Abstract GeoHeritage-GIS (GH-GIS), a web site concerning Palermo Historic Centre monumental Heritage, developed within Project 7T7 Cluster C29, funded by MIUR, has been designed as a permanent interface between who studies the hazard factors interesting this area and a vast category of final users which operate to safeguard Palermo Monumental Heritage, a very precious common weal. These end-users will benefit from homogeneously collected, frequently improved and periodically updated data concerning soil properties, seismic effects and all of that can help to define the hazard exposition of each monument, having an important tool in establishing a scale of priorities for interventions and re…
Costa Blanca: Urban Evolution of a Mediterranean Region through GIS Data
2015
This paper investigates the international retirement migration from elderly northern Europeans into Spain and its influence on expansion of urban sprawl there. Key themes analyzed in this paper include the urban sprawl expansion during the Spanish housing bubble, and the link between lifestyle migrants and urban sprawl development. This paper considers the reasons for moving to Spain, which are chiefly related with the climate and lifestyle. It also explores the benefits and drawbacks of these en masse lifestyle migration and the environmental and landscape impacts on Mediterranean Spain. In order to visualize better this international migration we have created some GIS maps from a GIS proj…
La Franosità diffusa dell'1 Ottobre 2009 nel territorio ionico-peloritano della Provincia di Messina: stato delle indagini e prime considerazioni sul…
2009
A seguito di un evento estremo di pioggia verificatosi il 1 ottobre 2009 in un settore circoscritto del versante ionico della Provincia di Messina, si sono sviluppati numerosi eventi franosi classificabili per la maggior parte come colate di fango e detrito a rapida evoluzione (debris-mud flows). Dai primi sopralluoghi effettuati, in assenza ancora di un censimento sistematico, si sono riconosciuti eventi in numero di oltre 500, che hanno interessato sia nei versanti interni dei bacini idrografici che sversano nello Ionio, sia sui rilievi direttamente prospicienti la costa. L’elevato numero di eventi occorsi ha consentito di dettagliare dal punto di vista morfologico i fenomeni avvenuti e d…
VALUTAZIONE DEL POTENZIALE TECNICO ECONOMICO DELL’ EOLICO OFFSHORE IN SICILIA MEDIANTE TECNICHE GIS
2010
A methodological approach exploiting modern techniques for forest road network planning
2016
A well-developed road network allows all forest activities, including wood harvesting, firefighting and recreational activities. However, forest road construction and maintenance involve economic and environmental costs. For these reasons, forest road network planning is a fundamental phase of forest management, maximising the benefits and reducing costs and impacts. Thanks to modern technologies in data collection both for terrestrial and forest characteristics, new methods and tools have been developed to improve and facilitate road planning. The aim of this study was the development of a Decision Support System for helping managers during forest road network planning, exploiting Multi-Cr…
Ground motion phenomena in Caltanissetta (Italy) investigated by InSAR and geological data integration
2008
Urban areas are frequently affected by ground instabilities of various origins. The location of urban zones affected by ground instability phenomena is crucially important for hazard mitigation policies. Satellite-based Interferometric Synthetic Aperture Radar (InSAR) has demonstrated its remarkable capability to detect and quantify ground and building motion in urban areas, especially since the development of Advanced Differential Interferometric SAR techniques (A-DInSAR). In fact, the high density of re.ectors like buildings and infrastructures in urban areas improves the quality of the InSAR signal, allowing sub-centimetric displacements to be reliably detected. The A-DInSAR techniques a…
Testing GIS-morphometric analysis of some Sicilian badlands
2014
Abstract Calanchi badlands are erosion landforms characterized by areas with scarce or absent vegetation, steep slopes, knife-edge divides and high erosion rates. They are originated by a combination of morphogenetic processes, partly similar to those shaping bigger fluvial landforms, and therefore can be considered as field “laboratories.” This paper presents the results of an investigation carried out in two badland sites located in Sicily, where the geometry of 25 calanchi has been characterized using Digital Elevation Models having a mesh size equal to 2 m. For each landform, a power length–volume relationship is established. This relationship demonstrates that length of calanchi channe…