Search results for " mappe"
showing 10 items of 47 documents
Atmospheric correction of optical imagery from MODIS and Reanalysis atmospheric products
2010
article i nfo In this paper we analyze the differences obtained in the atmospheric correction of optical imagery covering bands located in the Visible and Near Infra-Red (VNIR), Short-Wave Infra-Red (SWIR) and Themal-Infrared (TIR) spectral regions when atmospheric profiles extracted from different sources are used. In particular, three sensors were used, Compact High Resolution Imaging Spectrometer (CHRIS), Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER) and Landsat5 Thematic Mapper (TM), whereas four atmospheric profiles sources were considered: i) local soundings launched near the sensor overpass time, ii) Moderate Resolution Radiometer (MODIS) atmospheric profiles…
ENVISAT/AATSR derived land surface temperature over a heterogeneous region
2007
Abstract In this paper a method for evaluating land surface temperature (LST) algorithms over heterogeneous areas is presented. The evaluation was made for a set of 12 algorithms derived by using the split-window (SW) and dual-angle (DA) techniques for estimating sea and land surface temperature (SST and LST) from Advanced Along-Track Scanning Radiometer (AATSR) data. A validation of the proposed algorithms was carried out over a heterogeneous region of Morocco in the framework of the WATERMED (WATer use Efficiency in natural vegetation and agricultural areas by Remote sensing in the MEDiterranean basin) project. AATSR data and in situ measurements over this heterogenous region were compare…
Approccio metodologico nel restauro dei monumenti: le analisi tematiche come componenti essenziali del progetto
2010
Il restauro architettonico è caratterizzato da uno specifico percorso metodologico, che prevede l'esecuzione di analisi tematiche particolareggiate al fine di perfezionare i livelli di conoscenza dell'architettura-oggetto di ricerca. La tavola ne mostra alcuni esempi. The architectural restoration is characterized by a specific methodological approach, which includes the performance of detailed thematic analysis in order to improve the level of knowledge of architecture as an object of research. The table shows some examples.
Assessing the performance of a large-scale irrigation system by estimations of actual evapotranspiration obtained by Landsat satellite images resampl…
2019
Abstract Remote sensing techniques allow monitoring the Earth surface and acquiring worthwhile information that can be used efficiently in agro-hydrological systems. Satellite images associated to computational models represent reliable resources to estimate actual evapotranspiration fluxes, ETa, based on surface energy balance. The knowledge of ETa and its spatial distribution is crucial for a broad range of applications at different scales, from fields to large irrigation districts. In single plots and/or in irrigation districts, linking water volumes delivered to the plots with the estimations of remote sensed ETa can have a great potential to develop new cost-effective indicators of irr…
NANOCOATING ANTIBATTERICI PER L’INCLUSIONE SOCIALE DEI NON VEDENTI IN AMBITO MUSEALE
2021
The research and experimentation activity has been carried on in the frame of the Master for Expert on Nanotechnology for Cultural Heritage, held at the University of Palermo, year 2020-2021. The project aims to verify the performance over time and the bio-receptivity of the antibacterial treatments developed by the company SenseFulDesign srl, a Sicilian start-up, which produces tactile maps and reproductions of monuments with antibacterial properties, in order to promote the social inclusion of the blind. This experimentation involved the multi-parametric evaluation of two different antibacterial nanocoating, which were applied on three different types of substrates used for the realizatio…
The invasive blue crab Callinectes sapidus thermal response: Predicting metabolic suitability maps under future warming Mediterranean scenarios
2022
One of the consequences of climate change and globalization is the recent proliferation of the invasive blue crab Callinectes sapidus in the Mediterranean Sea. In this study, C. sapidus thermal tolerance was investigated through experiments based on species metabolic response (measuring respiration rates) to a wide temperature range. Based on metabolic rates, Thermal Habitat Suitability (THS) maps were performed on current and futures temperature conditions in the Mediterranean Sea. Thermal Performance Curve showed a CTmax at 40°C and an optimum at 24°C. Respiration rate increased between 12°C and 24°C and decreased until 30°C. At the highest temperatures (> to 30°C) a pointed increa…
Reti Neurali per la Realizzazione di Mappe di Suscettibilità per il Rischio Frana
2012
La valutazione della suscettibilità al dissesto rimane uno degli approcci più utilizzanti e più efficaci per l'analisi della pericolosità da frana. Come noto, la correlazione tra il fenomeno fisico ed i fattori predisponenti sulla base degli eventi accaduti in passato è il punto chiave di tale analisi. I metodi statistici, uniti con le tecnologie GIS, si sono rilevati in questi anni tra gli strumenti più idonei e più efficaci per la valutazione e la modellazione di tale correlazione. Tuttavia, questi metodi richiedono spesso ipotesi restrittive circa la distribuzione statistica dei dati che spesso non vengono rispettate. Per tale motivo si sono anche sviluppate metodologie alternative basat…
DEFINIZIONE DI IDROGRAMMI SINTETICI PER LA REDAZIONE DI MAPPE DI PERICOLOSITA’ D’INONDAZIONE
2010
Obiettivo di questo studio è la definizione di idrogrammi sintetici da utilizzarsi come input per la redazione di mappe di pericolosità d’inondazione; in particolare nel lavoro sono state messe a confronto tre diverse metodologie entrambe basate su tecniche di tipo stocastico. La prima prevede il calcolo degli idrogrammi di piena attraverso una procedura di tipo Monte Carlo generando tre elementi che caratterizzano gli idrogrammi: portata al colmo, volume di piena e forma dell’onda. La seconda riguarda la generazione di idrogrammi sintetici a partire dalla derivazione della curva di riduzione dei colmi di piena basata su forma inferenziale. Le procedure adottate non portano agli stessi risu…
Recensione al volume CORRADINA POLTO, La Sicilia nella collezione cartografica dell’Università di Messina, Messina, Accademia Peloritana dei Pericola…
2022
recensione al volume di C. Polto dal titolo "La Sicilia nella collezione cartografica dell’Università di Messina", Messina, Accademia Peloritana dei Pericolanti, 2021.
Polynomial mapped bases: theory and applications
2022
Abstract In this paper, we collect the basic theory and the most important applications of a novel technique that has shown to be suitable for scattered data interpolation, quadrature, bio-imaging reconstruction. The method relies on polynomial mapped bases allowing, for instance, to incorporate data or function discontinuities in a suitable mapping function. The new technique substantially mitigates the Runge’s and Gibbs effects.