1,721,287 research outputs found
Ricerche di Geomatica 2012
No full textRaccolta di contributi dei Dottori di Ricerca 2012 nel settore della Geomatica, promossa dall'Associazione Italiana Universitari di Topografia e Cartografia (AUTeC), curata dal Coordinatore AUTeC G.Bitelli
SubCoast - A collaborative project aiming at developing a GMES-service for monitoring and forecasting subsidence hazards in coastal areas around Europe (FP7-SPACE-2009-1 ID: 242332)
No full textSubCoast is a collaborative project under THEME FP7-SPACE-2009-1 of the Seventh Framework Programme of the European Commission. SubCoast aims at developing a GMES-downstream service for assessing and monitoring subsidence hazards in coastal lowland areas around Europe. SubCoast develops GMES-downstream services based on satellite data, in-situ measurements and geoscientific models. SubCoast builds upon ESA’s GMES Service Element Terrafirma which provides a ground motion hazard information service
PRIN 2015 n. 2015HJLS7E "GAMHer – Geomatics Data Acquisition and Management for Landscape and Built Heritage in a European Perspective"
No full textThe project GAMHer (Geomatics data Acquisition and Management for landscape and built Heritage in a European
perspective) aims at exploding and validating Geomatics algorithms, methodologies and procedures in the framework of new
European regulations, which are going to require a more extensive and productive use of digital information, as requested by
the Digital Agenda for Europe as one of the seven pillars of the Europe 2020 Strategy. This has a strong connection with the
Geomatics world, that has been always considered a multi-purpose discipline for a variety of applications requiring reliable
and accurate digital metric information used by different specialists for scientific/industrial research and productive work.
To this aim GAMHer will focus on the need of a certified accuracy for surveying and monitoring projects with
photogrammetry and laser scanning technologies, when used in a multi-scale and multi-level of detail approach for landscape
and built heritage documentation, conservation, and management. Indeed, the basic need of a certified metric accuracy is
sometimes neglected for the availability of the new strategies for data collection and processing, that have surely improved
the 3D reconstruction pipeline in terms of time and manual efforts required. However, automation comes at a cost, i.e. a lack
of certified accuracy, that can result in useless and crude reconstructions without metric integrity.
So, how can we overcome this limitation?
GAMHer will tackle the previous issues in the framework of the new European directives (UEPPD) supporting an increasing
demand of innovative methodologies to collect, process, validate and exchange digital information. Particular attention will
be paid to the realization of tools and guidelines for a data acquisition/processing workflow of images and laser scans
towards an accurate, reliable and accurate output for real, effective and productive work. GAMHer will investigated the
advantages and limitations of actual image- and laser scan processing algorithms and procedures with both a technologyand
application-driven purpose, i.e. the combined need of automation and reliability. This will improve the overall production
pipeline for the generation of metric digital reconstruction, fulfilling metric requisites while preserving automation. The
approach will follow a multi-scale transition that exploits GIS systems at the landscape scale, BIM technology and “point
cloud-based” 3d modelling for the scale of the building, and an innovative BIM/GIS integrated approach to foster innovation,
promote users’ collaboration and encourage communication between specialists and non-specialists, today all involved for a
more reflective society. For this reason, the outcomes of GAMHer are not intended to be used only by a community of
Geomatics specialists, but also by a multitude of users that exploit images and laser scans in their activities
La Grande Guerra dall’alto. La fotogrammetria aerea e le nuove tecnologie di mappatura del territorio all’inizio del XX secolo
Full text linkDalla carta antica al sistema informativo territoriale: evoluzione storica dell’antico canale dei mulini di Cesena
No full textOggi, il recupero dei documenti cartografici storici in ambiente digitale, la successiva l'analisi metrica e la gestione in ambiente GIS (Geographic Information System) degli stessi mediante le moderne tecniche geomatiche consentono non solo la salvaguardia di questi preziosi beni culturali dal tempo, ma anche la possibilità di effettuare un ampio spettro di ricerche e applicazioni a carattere multidisciplinare. Il presente lavoro esemplifica tale affermazione attraverso uno specifico caso di studio, la zona circostante l'ex canale dei mulini di Cesena (FC). I numerosi documenti storici raccolti (carte antiche e documenti d'archivio su un arco temporale di oltre 600 anni) sono stati fatti confluire in un GIS appositamente creato, in cui è possibile la ricerca spazio-temporale e la consultazione dei documenti inseriti, oltre che l'analisi dell'evoluzione del territorio, il tutto attraverso un'interfaccia semplice e intuitiva
L’Archeologia prima dell’Archeologia. Dall’antiquaria all’archeologia scientifica
No full textLa mostra, realizzata nell'ambito di ArteLibro, Festival del Libro d’Arte 2011, si è tenuta presso la Facoltà di Ingegneria dell'Università di Bologna. I volumi in mostra, che documentano alcuni momenti delle origini dell'archeologia come disciplina scientifica, furono pubblicati tra la seconda metà del XVI secolo e l'inizio del XX; essi sono stati oggetto di recupero catalografico da parte del Sistema Bibliotecario d'Ateneo. La mostra è stata inaugurata il 23 settembre 2011 con interventi del Preside della Facoltà, Prof. Ing. Pier Paolo Diotallevi, della Direttrice della Biblioteca Dore, dott.ssa Maria Pia Torricelli, che ha presentato l'esposizione, e del Prof. Gabriele Bitelli, che ha tenuto una dissertazione dal titolo "Dialoghi tra l'Ingegneria e l'Archeologia"
Il monitoraggio della subsidenza in area ravennate. I primi decenni: campagne di misura ed evoluzione della strumentazione topografica
No full textL'area ravennate è interessata da un fenomeno di subsidenza che vede la compresenza di una componente naturale e di una componente di origine antropica. La percezione del fenomeno, e la susseguente messa a punto di metodi per il suo monitoraggio al fine di potere disporre di elementi conoscitivi per poterlo combattere, avvenne a partite dal secondo dopoguerra ed in particolare dagli anni '70.
Il lavoro intende brevemente riassumere le principali attività che a vario livello vennero sviluppate nei primi decenni di monitoraggio, fino alla campagna 1998, sottolineando l'evoluzione che si ebbe in quel periodo sia nell'approccio al problema che nelle metodologie e tecniche di misura topografica; ad una migliore qualità di impianto della rete di livellazione si affiancò infatti, sul finire del secolo scorso, l'adozione della nuova strumentazione digitale che si è poi sempre più confermata come insostituibile per il moderno rilievo topografico
A historical GIS for the comparison of past and present views: Bologna, yesterday and today
No full textDigital regeneration of ancient cartography is an interesting way to allow new chances of viewing and using its historic and geographic information, by modalities that cannot apply to analogue supports. In particular, the creation of a HGIS (Historical Geographic Information System) is a way to make ancient maps suitable for a wide range of applications, from land management to researches on landscape and urban development, from archival researches to tourism promotion.
The present study aims to demonstrate the usefulness of GIS tools to collect and link together historical maps and other archive data, e.g. drawings and photos. Some eighteenth and nine-teenth century maps of Bologna were georeferenced and used as a base for a HGIS, together with the current cartography. In order to enrich the environment with historical views of the city, the GIS was populated with a great number of historical pictures (drawings, engravings, photos, postcards), each one linked to the relative historical map by means of a hotspot (rep-resenting the viewpoint from which the picture was probably taken). Together with each his-torical picture, a current photo of the city, taken from the same point of view, can be re-trieved and visualized, in order to compare the ancient portrait of the city with its present-day appearance. This HGIS, providing a simple and interactive use, offers a new look at the an-cient and modern city, turning to be a useful tool for researchers, historians and archivists who reconstruct the evolution of the city, as well as common people interested to rediscover in a unusual way the history of Bologna
A HGIS for exploring eighteen-century manuscript gazettes of Bologna (Italy)
No full textIn Europe, from the fifteenth-sixteenth century, a frequent means for public dissemination of information
was given by manuscript news. In Bologna, a manuscript gazette, with weekly issue, circulated at least
from the second decade of the eighteenth century. It was intended for the public and reported almost
exclusively local news of various kinds, from worldly events of the nobility to crimes. This gazette,
collected by A.F. Ghiselli (1634-1730) in his Memorie antiche manoscritte di Bologna and today
preserved at the University Library of Bologna, constitutes a precious source of information for the study
of the Early Modern city.
Aim of the present study is to test the possibility to create a Historical Geographic Information System
(HGIS) for the collection, display and search of the news reported in this gazette. For a sample of gazette
issues, the news was classified according to the typology and collected in a database; therefore, they were
georeferenced on two coeval maps basing on the locations mentioned in the news themselves, having at
disposal from the maps the representation of the city with toponyms of streets and places. The same data
were displayed by means of a 3D digital model of the ancient city derived from one of the maps
Validation of ERS differential SAR interferometry for land subsidence mapping: the Bologna case study
No full textThe city of Bologna, Italy, is ideal to assess the potential of ERS differential SAR interferometry for land subsidence mapping in urban areas for a couple of reasons: the subsiding area is large and presents important velocities of the vertical movements; there is a typical spatial gradient of the vertical movements; many ERS SAR frames are available; a large scientific community is involved in the study of subsidence; a large amount of levelling data is available. We analyzed a time series of ERS- 1/2 data from August 1992 to May 1996 and compared the subsidence maps derived from ERS SAR interferometry and levelling surveys. We conclude that for the mapping of land subsidence in urban environments ERS differential SAR interferometry is complementary to levelling surveys and GPS with regard to cost effectiveness, resolution and accuracy
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