305,350 research outputs found
Vulnerability Mapping of an Apulian Deep Carbonate Aquifer Using GIS
No full textComputer techniques such as Geographic Information Systems are applied to the evaluation of the vulnerability of a deep carbonate aquifer.
The study area, of about 150 km2, is located in the low Murgia Plateau (Apulia) and characterized by Mesozoic limestone and dolomite rocks of several thousand meters thickness. A wide and thick aquifer resides in these carbonate rocks. Its groundwater flows toward the sea mainly under pressure and with maximum piezometric level of about 200 m a.s.l.. Due to their high quality, the water resources of this aquifer are particularly valuable for the local communities and therefore must be protected from pollution and inappropriate use.
The vulnerability map of the aquifer is an indispensable tool for the effective management of groundwater resources and to support environmental planning. Several approaches have been proposed by different authors to evaluate intrinsic vulnerability. Most of the methods for detailed vulnerability mapping are based on the integrated analysis of several variables using different algorithms. Geographic Information Systems are advanced computer tools for the analysis of georeferenced data in 2D and 3D and can be effectively applied to the implementation of evaluation models. In this study the SINTACS evaluation method was implemented in a GIS and a digital vulnerability map produced.
The different data taken into consideration in this analysis, such as depth to water, actual infiltration, pollution attenuation capacity of unsaturated zone, land cover, hydrogeological features of saturated aquifer, hydraulic conductivity, terrain slope, geology and geological structures, were georeferenced and converted into digital form. Each variable corresponds to a separate data layer made of graphic and attribute data.
The computerized multilayer analysis performed by the GIS is time effective and leads to more comprehensive and accurate results with better spatial resolution.PublishedBari, Italyope
Potenzialità e criticità del bike sharing nelle città di piccola-media dimensione. Il caso di Trieste
No full textL’uso del bikesharing rappresenta una delle modalità alternative all’auto privata che sta riscuotendo successo in Italia. Tuttavia, la distribuzione di questi servizi rimane disomogenea, con evidenti limitazioni nelle città di medie e piccole dimensioni, che costituiscono il tessuto urbano più diffuso nel Paese. Per questo, questo studio ha l’obiettivo di analizzare il servizio di bike sharing a Trieste, introdotto nel 2020, al fine di individuare determinanti e criticità attraverso una raccolta dati tramite questionario.
I risultati mostrano un generale apprezzamento del servizio e una forte intenzione di proseguirne l’utilizzo. Tra i principali fattori di successo emergono una maggiore capillarità delle stazioni, il miglioramento della qualità dei modelli di biciclette e un’applicazione più intuitiva, capace di gestire tempestivamente eventuali imprevisti. Tuttavia, sono state riscontrate criticità legate al malfunzionamento di stalli e biciclette, in parte riconducibili anche ad atti di vandalismo.
I dati raccolti consentiranno di avanzare proposte di policy rivolte all’amministrazione locale, che comprendono non solo interventi di miglioramento del servizio, ma anche la realizzazione di piste ciclabili protette e ben segnalate. Contestualmente, sono state formulate indicazioni per la collettività, al fine di promuovere comportamenti più rispettosi nei confronti del servizio e favorire una sinergia costruttiva con l’amministrazione locale
La mobilità su rotaia per le spedizioni di merci agroalimentari: il caso del gruppo Barilla
No full textIn Italia, nel 2020, il settore agroalimentare è stato il primo settore ad aver impiegato la mobilità su rotaia per la spedizione di merci, nonostante la mobilità su gomma rimanga nettamente prevalente, con evidenti esternalità negative in termini di sicurezza sulle strade e di impatto ambientale. Tuttavia, l’impiego della mobilità su rotaia per le spedizioni di merci agroalimentari merita una maggiore attenzione, soprattutto per la portata che il settore agroalimentare rappresenta per l’economia italiana, oltre che all’importanza di investire in forme di mobilità più sostenibili per il traffico merci.
Al fine di contribuire in parte al dibattito in corso, il presente elaborato tenterà di analizzare l’attuale tendenza di sviluppo della mobilità su rotaia nella spedizione di merci, enfatizzando maggiormente gli aspetti riguardanti le spedizioni di merci agroalimentari.
A tal fine, la ricerca verrà condotta su due livelli di analisi. Dapprima, l’analisi sarà condotta a livello macro, per cogliere gli aspetti e le attuali tendenze di sviluppo della mobilità su rotaia per la spedizione di merci in senso aggregato. Successivamente, l’analisi sarà condotta a livello settoriale, con l’obiettivo di focalizzarsi sulle tendenze in atto nell’ambito dei traffici di merci agroalimentari tramite mobilità su rotaia, cogliendo i vantaggi e gli svantaggi che possono condizionare tale scelta. Infine, il presente elaborato proporrà l’analisi del caso di studio del Gruppo Barilla, un’azienda multinazionale agroalimentare, che a partire dal 2015 ha implementato un nuovo progetto di mobilità su rotaia per il traffico interno di materie prime e, dal 2020, per le spedizioni di prodotti finiti del suo portfolio
Vulnerability Mapping of an Apulian Deep Carbonate Aquifer Using GIS
No full textComputer techniques such as Geographic Information Systems are applied to the evaluation of the vulnerability of a deep carbonate aquifer.
The study area, of about 150 km2, is located in the low Murgia Plateau (Apulia) and characterized by Mesozoic limestone and dolomite rocks of several thousand meters thickness. A wide and thick aquifer resides in these carbonate rocks. Its groundwater flows toward the sea mainly under pressure and with maximum piezometric level of about 200 m a.s.l.. Due to their high quality, the water resources of this aquifer are particularly valuable for the local communities and therefore must be protected from pollution and inappropriate use.
The vulnerability map of the aquifer is an indispensable tool for the effective management of groundwater resources and to support environmental planning. Several approaches have been proposed by different authors to evaluate intrinsic vulnerability. Most of the methods for detailed vulnerability mapping are based on the integrated analysis of several variables using different algorithms. Geographic Information Systems are advanced computer tools for the analysis of georeferenced data in 2D and 3D and can be effectively applied to the implementation of evaluation models. In this study the SINTACS evaluation method was implemented in a GIS and a digital vulnerability map produced.
The different data taken into consideration in this analysis, such as depth to water, actual infiltration, pollution attenuation capacity of unsaturated zone, land cover, hydrogeological features of saturated aquifer, hydraulic conductivity, terrain slope, geology and geological structures, were georeferenced and converted into digital form. Each variable corresponds to a separate data layer made of graphic and attribute data.
The computerized multilayer analysis performed by the GIS is time effective and leads to more comprehensive and accurate results with better spatial resolution.PublishedBari, Italyope
Integration of remotely sensed and geophysical data for archaeological prospection using GIS
No full text
Relatório - Horário Escolar e Programa de Ensino, SP, 1943.
No full textTratam-se de fotografias autorizadas do documento original que se encontra no Arquivo Público do Estado de São Paulo, na caixa E7706.Henrique Ricchetti escreve o relatório falando a respeito da diretoria de ensino de São Paulo em cumprimento a circular nº 86 de 31 de dezembro de 1942. Aqui encontra-se a parte especifica, a qual ele trata a respeito do horário escolar e do programa utilizado na escolas pertencentes a delegacia de ensino, dando destaque às "disciplinas": Cálculo e Linguagem
L'acquifero superficiale del territorio di Brindisi: dati geoidrologici diretti e immagini radar da satellite
No full textA free shallow aquifer is present in the Pleistocene marine terrace deposits that widely outcrops in the Brindisi district. These deposits overlay impermeable clay and calcarenite of 'Fossa bradanica' sedimentary cycle, and Mesozoic carbonate rocks of 'Calcare di Altamura' formation. In the latter a regional karsic aquifer is present. The geological analysis was carried out also using stratigraphic data from drilled holes. Those data highlight a local high variability of aquifer and impermeable clay thickness, with a mean value of 14 m and 22 m respectively. On line with the results of hydrologic accounting, particular attention was paid to the recognition of local water loss toward the karsic aquifer. A hydrogeologic study of a sample area southward with respect to Brindisi, based on detailed field survey, highlights low values of aquifer permeability, with mean value of 7,5 x 10-5 m/s. The permeability of the clay deposits underlying the aquifer is too high to avoid any water infiltration (mean value of 3 x 10-7 m/s). The water table is locally influenced by hydrographic pattern. If we consider piezometric regimen it has a month minimum in the summer end and a month maximum in March or April, with a delay of 2-3 months with respect to month extreme rainfall. The analysis of a multitemporal satellite radar image provided useful information about the water content changes of the shallow aquifer. The color hue differences shown in the color composite image of three images acquired in different season, are strictly correlated to the changes in soil moisture content. Besides, structural lineaments were recognized in that image, along which water infiltration is likely. The applicability of remotely sensed data in this kind of study is also proved by the analysis of images acquired by an infra-red videocamera.Published1059-10745.5. TTC - Sistema Informativo TerritorialeN/A or not JCRope
Processing and integration of aerial photographs and geophysical data for archaeological application
No full textVulnerability Mapping of Carbonate Aquifer using Geografic Information Systems
No full textComputer techniques such as Geographic Information Systems are applied to the evaluation of the vulnerability of a deep carbonate aquifer. The study area is located in the low Murgia Plateau (Apulia) and characterized by Mesozoic limestone and dolomite rocks of several thousand meters thickness. A wide and thick aquifer resides in these carbonate rocks. Its groundwater flows toward the sea mainly under pressure. Due to their high quality, the water resources of this aquifer are particularly valuable for the local communities and therefore must be protected from pollution and inappropriate use. The vulnerability map of the aquifer is an indispensable tool for the effective management of water resources and to support environmental planning. Geographic Information Systems can be effectively applied to the implementation of vulnerability models. In this study the SINTACS evaluation method was implemented in a GIS and a digital vulnerability map produced. The computerized multilayer analysis performed by the GIS is time effective and leads to more comprehensive and accurate results with better spatial resolution.PublishedSydney, NSW6A. Monitoraggio ambientale, sicurezza e territorioope
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