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Publications (29)
Marine communities are facing both natural disturbances and anthropogenic stressors. Bioconstructor species are endangered by multiple large-scale and local pressures and the early identification of impacts and damages is a primary goal for preserving coral reefs. Taking advantage of the recent development in underwater photogrammetry, the use of p...
Detecting the impacts of natural and anthropogenic disturbances that cause declines in organisms or changes in community composition has long been a focus of ecology. However, a tradeoff often exists between the spatial extent over which relevant data can be collected, and the resolution of those data. Recent advances in underwater photogrammetry,...
Development of automated and remotely controlled procedures for accurate crack detection and analysis is an advantageous solution when compared to time-consuming and subjective crack examination conducted by operators. Recent studies have demonstrated that Machine Learning (ML) algorithms have sufficient potential for crack measurements. However, t...
The development and testing of innovative technologies and automated data analysis methodologies offer tools for investigations in numerous scenarios including the monitoring of complex marine ecosystems and the direct and indirect effects of climate change on natural heritage. In the underwater environment, the creation of products with accurate m...
The development and testing of innovative technologies and automated data analysis methodologies offer tools for the monitoring of complex marine ecosystems and the direct and indirect effects of climate change on natural heritage. Photogrammetric methods allow precise mapping of the underwater landscape as well as detailed three-dimensional (3D) r...
The proper inspection of a cracks pattern over time is a critical diagnosis step to provide a thorough knowledge of the health state of a structure. When monitoring cracks propagating on a planar surface, adopting a single-image-based approach is a more convenient (costly and logistically) solution compared to subjective operators-based solutions....
Marine animal forests are benthic communities dominated by sessile suspension feeders (such as sponges, corals, and bivalves) able to generate three-dimensional (3D) frameworks with high structural complexity. The biodiversity and functioning of marine animal forests are strictly related to their 3D complexity. The present paper aims at providing n...
In Antarctica, the severe climatic conditions and the thick ice sheet that covers the largest and most internal part of the continent make it particularly difficult to systematically carry out geophysical and geodetic observations on a continental scale. It prevents the comprehensive understanding of both the onshore and offshore geology as well as...
Underwater photogrammetry is increasingly being used by marine ecologists because of its ability to produce accurate, spatially detailed, non-destructive measurements of benthic communities, coupled with affordability and ease of use. However, independent quality control, rigorous imaging system set-up, optimal geometry design and a strict modeling...
In order to make inferences on the geodynamics of Antarctica, geodetic and gravimetric maps derived from past and new observations can be used. This paper provides new insights into the geodynamics of Antarctica by integrating data at regional and continental scales. In particular, signatures of geodynamic activity at a regional extent have been in...
On 15 December 2016 the initial Galileo services became available with a
formal announcement by the European Commission. This was the first step
toward the Galileo system Full Operational Capability (FOC).
This article shows the results of kinematic tests involving GNSS multiconstellation
receivers able to acquire the Galileo Open Service (OS) sign...
The opportunities offered by integrating modern digital techniques (Earth
photogrammetry, laser active systems, high resolution satellite images, Lidar,
GPS, etc) allow to get new products not only from survey, but also for
representation and visualization aims. This integration enables rebuilding
virtually sites of artistic interest in order to do...
This paper focuses on the integration of geodetic monitoring and geotechnical modeling for the analyses of subsidence induced settlements in historic structures. The aim is the assessment of the behavior over time of the monuments, with particular attention to differential settlements, in order to evaluate the potential risk scenarios in a preventi...
The feasibility of unmanned-aerial-vehicle-based photogrammetry was assessed for the reconstruction of high-resolution topography and geomorphic features of quarries by nadir and off-nadir imagery. The test site was a quarry located in the rural area of Turi (Bari, southern Italy). Two processing scenarios were created. Nadir images were initially...
The research focuses on structural monitoring and movements identification applied to cultural heritage protection. The final purpose is the integration among different and independent technologies for analyzing and investigating the geometry changing over time of ancient leaning towers. The paper deals with a novel strategy implemented to compute...
This paper presents a literature review on the methodology called Volunteered Geographic Information (VGI) and its use for Landslide Risk Assessment (LRA). General risk assessment procedures are discussed and the potential contributions of VGI are identified, in particular when quantitative characterization of factors such as Hazard, Vulnerability...
Monitoring the time history of structures and infrastructures has always been an important area of application of geodetic and geomatic methods. Here we shall concentrate on the item of monitoring ancient buildings because, beyond its intrinsic interest, it provides
a good illustration of some of the most recent monitoring techniques. Identifying t...
Les portails de la cathédrale de Modène, ainsi que l’ensemble de l’architecture et de la sculpture de cet important monument de l’art roman en Italie, ont reçu depuis longtemps l’attention des chercheurs qui se sont intéressés aux différents aspects historiques, structurels, stylistiques et iconographiques.
Depuis le XIX siècle, des relevés de la s...
Since 1998, the Italian Antarctic Programme has been funding space geodetic activities based on the use of episodic and permanent global positioning system (GPS) observations. As well as their exploitation in geodynamics, these data can be used to sense the atmosphere and to retrieve and monitor its water vapor content and variations. The surface p...
The Italian geodetic infrastructure in Antarctica has been constantly
developed during the last two decades. The integration of geodetic
instruments with other geophysical sensors has been driving the planning
and design of the geodetic infrastructure at Mario Zucchelli Station
(MZS) and in a wide area around the base. Our purpose is to maximize th...
In Polar regions, the atmospheric precipitable water vapour (PWV)
content is approximately one third or less than that present at mid
latitudes. On the Antarctic Plateau, it drops down to less than a few
mm. As a consequence, the use of GPS data in sensing the atmosphere can
be reliably applied only on coastal areas, were the PWV is large enough
to...
A campaign of absolute gravity (AG) measurements was conducted with both
FG5 and A10 meters on Ross Island and in Terra Nova Bay in November and
December 2011. It resulted from a collaboration between Danish, French,
Italian, New Zealand and US agencies and institutes, under the POLENET
program. For the second time in 2 years, AG was measured at Mc...
Rapid assessment of landslide activity is important in case of adverse climatic conditions leading to civil protection's alerts that require increased surveillance of risk areas. GB‐InSAR is nowadays becoming a consolidated near‐sensing monitoring technique for slope movements. It can be installed rapidly and it can rapidly provide results in the f...
The very high-resolution satellite images are a useful tool both for map updating and environmental monitoring. Phenomena, with a detail of 0.5m up to 1m, could be observed. The coastal areas are quite critical and quickly evolving. QuickBird and Ikonos images are likely able to investigate coastal changes within 1m of accuracy. This paper deals wi...
Ground-based dual-frequency GPS observations can be used to create images of electron density. This is well established for the Arctic ionosphere; here one of the first results is presented for the Antarctic. In this study, the GPS receivers in the Antarctic are supplemented with another GPS receiver onboard CHAMP. The aim of the study is to demons...
The VLNDEF (Victoria Land Network for DEFormation control) project started in 1999 with the aim of detecting crustal deformation in Northern Victoria Land (Antarctica) over an area that had never been surveyed by a dense GPS network before. After a brief summary of the Italian geodetic activities carried out since 1991, the paper presents the resul...
Molto è noto delle particolarissime condizioni che rendono l'Antartide un laboratorio veramente speciale per tante discipline. Tuttavia, per le Scienze della Terra il continente antartico ha un doppio interesse. Oltre ad essere un luogo poco conosciuto dove avvengono processi straordinari ed unici per il nostro pianeta, esso occupa anche una posizi...