1,720,996 research outputs found
Carta Idrogeologica di Roma - Hydrogeological Map of Rome - Scala-Scale 1:50.000
No full textLa storia millenaria di Roma e indissolubilmente legata al rapporto della citta con l’acqua. Roma citta di acquedotti, di terme e di fontane, di fiumi e di mare, rinsalda oggi il suo legame con le acque sotterranee consegnando al mondo scientifico, professionale e a tutti i cittadini che vorranno liberamente usufruirne la sua nuova Carta Idrogeologica. Per questo ed altri motivi, sono particolarmente fiera del percorso intrapreso e del risultato raggiunto. La nuova carta e frutto della collaborazione tra l’Amministrazione di Roma Capitale ed una vasta rappresentanza del mondo scientifico. Una collaborazione, tengo a sottolineare, del tutto inedita e non onerosa in termini economici in quanto nata con la volontà condivisa, istituzionalizzata con un protocollo d’intesa, di mettere a disposizione della collettività le più rilevanti conoscenze del settore. I dati messi a disposizione dai Dipartimenti “Tutela Ambientale” e “Programmazione ed Attuazione Urbanistica” di Roma Capitale sono confluiti nell’ampio bagaglio di conoscenze del mondo universitario e della ricerca, cosi da conferire alla nuova Carta Idrogeologica di Roma un indubbio carattere sperimentale da un lato, e molteplici elementi di innovatività dall’altro, anche grazie all’utilizzo della più aggiornata cartografia geologica di Roma come base e di nuovi rilievi in sito. Tengo poi ad evidenziare che l’elaborazione di questa nuova carta nasce e si affianca ad una serie di ulteriori progetti in tema di acque sotterranee che ho sempre sostenuto sin dall’inizio del mio mandato, e che sono in corso di realizzazione presso il Dipartimento Tutela Ambientale di Roma Capitale, a testimonianza di un rinnovato impegno di questa Amministrazione in tema di tutela delle acque e sostenibilità nell’impiego della risorsa. Progetti tutti caratterizzati da forti interconnessioni e molteplici finalità di utilizzo, ai quali la predisposizione di questa carta dara sicuramente un grande impulso. Con questo strumento di base sarà da oggi più semplice acquisire informazioni preliminari utili, ad esempio, a definire la migrazione di eventuali sostanze inquinati che dovessero interessare le falde acquifere, ma sarà anche più facile affrontare con maggiore consapevolezza le nuove sfide che lo sviluppo delle opere in sotterraneo della citta pone ogni giorno. Il documento inoltre e un’utile base conoscitiva per potenziare politiche di sfruttamento di risorse energetiche rinnovabili quali quelle dell’energia geotermica a bassa entalpia. Nell’ambito della strategia di resilienza poi, che questa Amministrazione sta pianificando, un intero filone tematico riguarda l’acqua, intesa in tutte le sue manifestazioni, superficiali e sotterranee. La Carta Idrogeologica costituisce un elemento informativo di base importantissimo per questo scopo. Un esempio virtuoso quindi ed un grande contributo per la nostra citta per cui mi sento di ringraziare vivamente tutti quanti vi hanno contribuito ed in particolare, oltre al Servizio Bonifica Siti Inquinati e Geologia Ambientale e gli altri Uffici di Roma Capitale, il Dipartimento di Scienze dell’Università degli Studi Roma Tre, il Servizio Geologico d’Italia - ISPRA, il CNR-IGAG, il CERI - Sapienza e l’INGV.The millenary history of Rome is inextricably linked to the relationship of the city with the water. Rome city of aqueducts, of spas and fountains, rivers and sea, today strengthens its ties with groundwater delivering to the scientific and professional world and to all citizens who want to freely use, its new Hydrogeological Map. For this and other reasons, I am particularly proud of the path taken and the achieved result. The new map is fruit of the collaboration between the Administration of Roma Capitale and a wide representation of the scientific world. A partnership, I want to emphasize, entirely new and not onerous in economic terms, as born with the shared will (institutionalized with a protocol agreement) of providing the community the most relevant industry insights. Data provided by the “Environmental Protection” and “Urban Planning” Departments of Roma Capitale flowed in the large store of knowledge of the academic and research world, so to confer to the new Hydrogeological map of Rome an undoubted experimental character, on one hand, and multiple innovative elements the other, also thanks to the use of the most recent geological map of Rome as the base, and new site surveys. I want then to highlight that drawing up this new map is born and joins to a series of other projects in the field of groundwater that I have always supported from the beginning of my mandate, and that are being implemented at the Environmental Protection Department of Roma Capitale, testifying to a renewed effort of this Administration in terms of water protection and sustainability in the use of the resource. All these projects are characterized by strong interconnections and multiple purposes of use, to which the predisposition of this map will surely give a great impulse. With this basic tool is now easier to acquire preliminary useful information for example to define the migration of any contaminant that may affect groundwater, but it will also be easier to deal with greater awareness the new challenges that the development of underground works of the city puts each day. The document is also a useful knowledge base for policies to enhance the exploitation of renewable resources such as low enthalpy geothermal energy. Within its strategy of resilience that the Administration is planning, an entire thematic strand relates the water, seen in all its manifestations, from surface to groundwater. The Hydrogeological Map constitutes a basic informative element important for this purpose. A virtuous example and therefore a great contribution to our city for which I would sincerely thank all those who have contributed and in particular, in addition to the Contaminated Sites Remediation and Environmental Geology Service and the other offices of Roma Capitale, the Science Department of RomaTRE University, Geological Survey of Italy - ISPRA, the CNR-IGAG, the CERI - Sapienza and the INGV
Hydrogeology of the southern Middle Tiber Valley.
No full textThe aim of this work is to contribute to the hydrogeo-logical knowledge regarding the southern Middle Tiber Valley fo-cusing on the continental and marine units that fillthe Paglia-Tiber graben in the northern Latium Region (central Italy). An important hydrogeological survey was performed in the summer of 2008, and a considerable quantity of piezometric, physio-chemical and flowdata were collected. Four geological cross sections were realized, and a hydrogeological map and a groundwater quality map of the area were produced to obtain a conceptual groundwater flow model
Exploring the use of alternative groundwater models to understand the hydrogeological flow processes in an alluvial context (Tiber River, Rome, Italy)
No full textThe first step of the application of a groundwater
model to a specific site is the identification of the
conceptual model. In this paper, a methodology to compare
different conceptual models is proposed. Such a method
consists in the parallel run of simple groundwater models,
based on different conceptual models and in the evaluation
of each model fitting. The case study proposed to illustrate
this approach belongs to the alluvial series of the Tiber
River (Rome, Italy)
A Groundwater Modeling Case-Study with Modflow 2005. The Valco S. Paolo Area (Rome-Italy)
No full textThe Valco S. Paolo site may be regarded as representative of the main Tiber valley in the urban area of Rome, which is located 2 km south of the city center. In recent years, as per level, temperature and electrical conductivity measurements conducted in gravel and sand aquifers have notable variations. For this purpose, heads observed from 15 piezometers and physical characteristic data of sand and gravel aquifers were monitored in 5 piezometers in the Tiber river by dataloggers during 4 months and integrated with available geological and hydrogeological information to develop a conceptual model of the system. These fundamental information are required to characterize the existing groundwater system in this area in order to establish a groundwater flow model. The validation of the conceptual model by a steady-state numerical groundwater flow model reveals that minimum change occur in the center. Trial and Error calibration method has been applied to this model. The calibrated model had been used to simulate a different set of field measurements and the verification showed a good degree of confidence
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Ground water model calibration using geology information along with sensitivity analysis and estimation methods (UCODE-2005), the Acque Albule model, Rome, (Italy)
No full textThis note presents a model calibration experience on a complex groundwater system located in central Italy, in the
subsiding Acque Albule Plain near Rome (Italy).There are two main aquifers in this system. The first one, partially confined by
Pliocene-Pleistocene deposits, is constituted by the limestone fractured bedrock, while the second one, unconfined, is within the
fractured travertine. These two aquifers are connected in correspondence of the center of the plain, where deep hydrothermal water,
starting from the limestone bedrock, upwells through the Plio-Pleistocene deposits in to the travertine.A.A. ground water model is
applied to a 55km2 and is developed using Modflow-2005, discretized by 100x100 meters cells and three layers. Calibration process
applied to this model consisted in several steps using estimation methods along with sensitivity analysis and geology information.The
final model fitting shows clearly the importance of applying not only automatic estimation methods for calibration processes but also
the need to be prepared to change own conceptual model starting from sensitivity analysis and from collecting new data to better
understand the system
Water quality and relationship between superficial and ground water in Rome (Aniene River basin, central Italy)
No full textChemical, physical and biological features of streams and groundwater of the North-Eastern area of Rome are jointly analyzed in order to assess the status of water resources. Groundwater was investigated with classical survey methods (pH, temperature, and electric conductivity). Microbiological pollution, faunal composition, and stream surrounding area conditions of surface waters were studied, inorder to quantify the residual value of these ecosystems from both a human and an environmental point of view. Results show a general impairment of the system and the comparison between superfical waters and shallow groundwaters makes it possible to detect the presence of a connection between the two levels. This relationship occurs as an exchange from superfical waters (streams and rivers) to the shallow aquifers. Where superfcial waters are contaminated, as in the Tor Sapienza stream, pollutants move to the shallow aquifers too, due to the decreased pressure of the overexploited aquifer. Moreover, uncontrolled drilling activity, diffused in urban areas, makes it possible the connection between shallow and deep groundwater. Notwithstanding this, the mixing between superficia and deep groundwater system in Rome is not very widespread and, apparently, limited to restricted areas
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