Alberto Marini

Alberto Marini
Università degli studi di Cagliari | UNICA ·  Department of Chemical and Geological Science

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42
Publications
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153
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Publications

Publications (42)
Article
Full-text available
In the framework of several projects sustained by the Regional Sardinian Government Laws no. 43 (28/09/1990) and no. 19 (11/04/1996), research groups of the University of Cagliari (Sardinia, Italy) and of the University Mohamed V-Agdal of Rabat (Morocco) have started a series of preliminary geo-environmental studies in the basin of the Oued Sebou.A...
Conference Paper
Full-text available
Nell’ambito delle iniziative rivolte alla diffusione della cultura scientifica delle Scienze della Terra, nonché della tutela e valorizzazione del patrimonio naturalistico del nostro Paese, l’AIGeo ha svolto due stage di rilevamento geomorfologico nel territorio di Baunei (Sardegna centro orientale) negli anni 2009 e 2010. Gli stage, ai quali hanno...
Article
A cartographic representation of the vegetation characteristics over a large area of the Ogliastra territory, coupled with the use of several environmental indexes, allowed to estimate the degree of naturalness of this area. This information comes as a useful contribution for the assessment of ongoing projects such as the planned reintroduction of...
Article
Full-text available
The aim of this work is the validation of MODIS SST standard ocean product for Sea Surface Temperature (SST) mapping in coastal and marine waters around Sardinia. In order to test the algorithm, oceanographic data collected by the Biology and Ecology Department of University of Cagliari during three years (2006, 2007 and 2008) of surveys in the fra...
Article
Full-text available
Land cover composition and conversions are important factors that affect ecosystem condition and function. This study explored the use of 250 m multitemporal MODIS NDVI 16 day composite data to detect land cover change between 2005 and 2008 in Sardinia. We used a supervised classification procedure, based on the decision tree, to estimate land cove...
Conference Paper
The evolution of the methodologies to use the hyper-spectral images allows a different approach in the data analysis, which previously was difficultly practicable. Analyzing the general availability of metadata concerning the spectral characterization of physiographic units, still today a remark-able deficiency of acquaintances emerges, which regar...
Chapter
Full-text available
Ecosystems in semi-arid regions appear to be undergoing degradation processes commonly described as desertification. Desertification has been widely recognized as one of the most serious environmental problems in world, although its concept and causes are still debated in scientific communities. The semi-arid region in North Africa is ideal for inv...
Chapter
The purpose of this work is to investigate the possible use of MODIS and ENVISAT-ASAR Data to extract soil moisture (SM) field and validate the developed systems by means of in situ measurements. The main idea of this study concerns the advantages that could arise from a continuous and almost real time SM monitoring, permitted by wide-swath passive...
Chapter
The participants to this Course of high formation are researchers from Algeria, China, Egypt, Italy, France, Belgium, England, Morocco, Mauritania and Tunisia, guided by teachers from Algeria, Belgium, England, Egypt, Italy, France, and Tunisia. The program has previewed conferences about the phenomena of the desertification, some guided visits, pr...
Chapter
Full-text available
Desertification is the degradation of land in arid, semi-arid and dry sub-humid areas. It is caused primarily by human activities and climatic variations. Over 250 million people are directly affected by desertification, and about one billion people in over 100 countries are at risk. These people include many of the world's poorest, most marginaliz...
Book
This work becomes with methodological rigor a part of the innovative proposals for the characterization of the areas at risk of desertification. The complexity of the phenomenon of desertification, which involves extended surfaces in all continents, is one of the most alarming processes of the environmental degradation of our Planet and threatens t...
Article
Full-text available
Land degradation and desertification processes represent a serious problem in many areas of Sardinia (Italy), as in the Nurra region where urbanization, overgrazing, and fires have induced environmental degradation and rapid land-use change. In this study, using satellite remote sensing and geographical information system, landcover and landscape c...
Article
Full-text available
This map is a methodological purpose of remote sensing application for a new definition of a system of landform interpretation. In this paper a satellite study is proposed on an area that covers the south western side of Medenine (southern Tunisia), where a research project involves the Italian TeleGIS Lab of University of Cagliari, Tunisian IRA Ce...
Chapter
Full-text available
Sardinia is the second largest island in the Mediterranean after Sicily, with a surface area of 23,833 km2 inland, a total of 24,089 km2 including the minor islands. Its landscape mosaic confirms a position of transition between Africa and Europe, as Sardinia is almost the same distance from the coast of both continents, and is separated from Corsi...
Article
Full-text available
Despite the wide use of Landscape Character Assessment (LCA) as a tool for landscape planning in NW Europe, there are few examples of its application in the Mediterranean. This paper reports on the results from the development of a typology for LCA in a study area of northern Sardinia, Italy to provide a spatial framework for the analysis of curren...
Article
Full-text available
In the field of remote sensing research an important achievement is the ability to receive data directly as derived from satellite sensors, to select periods of data acquisition and therefore to access a greater amount of inforrnation. That is the main reason why the TeleGIS laboratory of the University of Cagliari decided to undertake this new act...
Conference Paper
Full-text available
SUMMARY A methodology is being developed based on the use of GIS and remote sensing tools for landscape character mapping in a pilot study area in Sardinia. The methodology is based on physical and cultural attributes of the Sardinian landscape using GIS as a decision support tool. In this abstract the first steps of the methodology is presented an...
Conference Paper
Full-text available
During these last years TeleGIS Lab of Cagliari University has developed collaborative projects with third countries in the field of desertification studies. Different co-operation research projects are currently active between TeleGIS Lab and IRA Institute in Southern Tunisia (Remote Sensing Laboratory of Institut des Régions Arides), and "Departa...
Conference Paper
Full-text available
The Sol (On Line System) Project is a EU co-operation research programme that aims to produce a transnational collaboration between three regions in the Mediterranean basin: Balearic islands (project Co-ordinator), Corse and Sardinia. In Sardinia the “Assessorato Enti Locali, finanze e urbanistica della Regione Autonoma della Sardegna” is the respo...
Article
Full-text available
. The Virtual Sardinia project aims at collecting a large amount of heterogeneous data concerning the island of Sardinia and representing them in such a way that a casual user can easily navigate through them in a virtual trip. All these data are interconnected in an hypermedia way, browsable in the World-wide Web, ranging from geographic to archae...
Article
Tigre Province is in northern Ethiopia between Eritrea on the north and east, and Begemdir and Wollo on the south. The area is comprised of five main physiographic units: Danakil Depression, Escarpment, Tigre and Eritrea Plateau, Semien Mountains and the Western Lowlands. The first two drain into the closed drainage basin of Dallol whilst the other...
Article
Satellite data are experimentally employed in an integrated study of the environment in order to overcome the sectorial limits of specialized investigations and arrive at an overall view of the phenomena influencing it. This type of study, which has already been theoretically and methodologically carried out in various countries, is applied to the...
Article
The usefulness of thermal inertia mapping for discriminating litholog-ical units was investigated using Sardinia and the Gulf of Orosei as test sites. Software designed forXANDSAT data was modified and improved for HCMM tapes. A first attempt was made to compare the geological cross-section, the topography, the infrared radiance and the thermal ine...
Article
The usefulness of thermal inertia mapping in discriminating geolithological units was investigated using Sardinia and the Gulf of Orosei as test sites. Software designed for LANDSAT data were modified and improved for HCMM tapes. A first attempt was made to compare the geological cross section, the topography, the IR radiance, and the thermal inert...
Article
Within the Tertiary volcanism from the Sarroch area well-clustered paleomagnetic directions were found with mean D=279o, I=61.2o and alpha 95=7.3o, whose pole position lies at 31oN, 312oE. All declinations from Sarroch deviate consistently with respect to Tertiary directions from the adjacent areas and from other areas of Sardinia. The deviating di...
Article
Well-clustered paleomagnetic directions from the Tertiary volcanics from Sarroch (mean direction of 13 sites D = 279 o, I = +61.2, alpha 95 = 7.3 o, pole position 317 oE, 29 oN) deviate consistently with respect of Tertiary directions from the adjacent Campidano graben and from other areas of Sardinia. The deviating directions are interpreted as ca...
Article
Full-text available
In this paper, the authors demonstrate that MODIS sensor multispectral imagery may be used in marine and coastal environment monitoring and for anomaly detection and that MODIS imagery may represent an alternative to SAR techniques in oil spills mapping. Two MODIS dataset of the Gulf of Cagliari (Sardinia -Italy) have been analysed in order to stud...
Article
Full-text available
Résumé Les plaines de Siniscola-Posada et de Iscra Ruja, situées au centre de la côte orientale de la Sardaigne, consti-tuent un laboratoire naturel pour l'étude de l'évolution récente du littoral sarde et pour analyser le rôle joué par les conditions morpho-climatiques et par la néotectonique. En particulier, la plage d'Iscra Ruja, longue de 2,5 k...

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