Workshop Arredo Urbano

Il workshop è dedicato alla cultura dell'intervento contemporaneo, minimo e inclusivo, per gli spazi pubblici urban

Effetto città. Premesse progettuali e risultati per un piano dell'AU. Un nuovo spazio per il design

Oltre allo street furniture, oggi si dispone di un piano del paesaggio e delle attrezzature, nuovo strumento di regia per la pianificazione pluriennale in ambito urbano

Il piano della luce in ambito urbano

Le caratteristiche di un Piano della luce in ambito urbano attento alla valorizzazione della morfologia urbanistica e spaziale del connettivo della città. Metodologie e strumenti

Workshop Arredo Urbano

Il workshop è dedicato alla cultura dell'intervento contemporaneo, minimo e inclusivo, per gli spazi pubblici urbani

Monitoring the long-term variations of the gravity field at the Neapolitans volcanoes

Starting from 1981 relative gravity measurements are carried out at the Neapolitan volcanoes ( Vesuvius, Campi Flegrei and Ischia). Measurements are periodically carried out on networks covering the whole volcanoes and are referred to a common reference station located in a comparatively stable area (Naples). A program of absolute gravity measurements was started in 1986 at the reference station and on selected ones of the relative networks. The long-term periodically surveying of them permits the check of base stations and is aimed to reveal long-term variations or to confirm their stability; moreover it permits periodic calibration checks and comparison for relative gravimeters and for the recording gravity stations where operating. Several absolute field surveys have been carried out, mainly at Vesuvius and at Campi Flegrei. The last campaign was carried out on March 2009. During the survey a new absolute station was established at Campi Flegrei, in the same site where a recording gravity station will be set up in a short time. Absolute data till now collected confirm the gravity variations revealed by the relative measurements carried out using spring gravimeters. We show that the combination of absolute and relative data is a powerful way to monitor the volcanic areas. As in past, absolute data were collected with the transportable ballistic gravimeter IMGC-02. New features and metrological improvements of the IMGC-02 are also briefly described

Relative Gravity Measurement Campaign during the 7th International Comparison of Absolute Gravimeters (2005)

Since the 1st International Comparison of Absolute Gravimeters (ICAG) and accompanying Relative Gravity Campaign (RGC) held at the BIPM in 1981, repeated ICAG-RGCs have been organized every four years. A total of 19 absolute gravimeters (AG) and 15 relative gravimeters (RG) participated in the 7th ICAG-RGC, which took place in 2005. Co-located absolute and relative gravity measurements as well as precision levelling measurements were carried out. The final version of the absolute g values of the 7th ICAG has been officially released recently. This paper is the final report of the 7th RGC and replaces the preliminary results published earlier. It covers the organization of the RGC and the data processing, analyses RG behaviour, computes g, delta g and O(AG) (offset of AG) and discusses their uncertainties. In preparation for the BIPM key comparison ICAG-2009, a standard data- processing procedure has been developed and installed in the BIPM ICAG-RGC software package, GraviSoft. This was used for the final data processing

Relative Gravity Measurement Campaign during the 7th International Comparison of Absolute Gravimeters (2005)

International audienceSince the 1st International Comparison of Absolute Gravimeters (ICAG) and accompanying Relative Gravity Campaign (RGC) held at the BIPM in 1981, repeated ICAG-RGCs have been organized every four years. A total of 19 absolute gravimeters (AG) and 15 relative gravimeters (RG) participated in the 7th ICAG-RGC, which took place in 2005. Co-located absolute and relative gravity measurements as well as precision levelling measurements were carried out. The final version of the absolute g values of the 7th ICAG has been officially released recently. This paper is the final report of the 7th RGC and replaces the preliminary results published earlier. It covers the organization of the RGC and the data processing, analyses RG behaviour, computes g, δg and OAG (offset of AG) and discusses their uncertainties. In preparation for the BIPM key comparison ICAG-2009, a standard data-processing procedure has been developed and installed in the BIPM ICAG-RGC software package, GraviSoft. This was used for the final data processing

Results of the International Comparison of Absolute Gravimeters in Walferdange (Luxembourg) of November 2003

The results of an international comparison of absolute gravimeters held in Walferdange Luxembourg in November 2003 are presented. The absolute meters agreed with one another with a standard deviation of less than 2 µGal (1 Gal = 1 cm/s2) (if we exclude one prototype instrument from the analysis). For the first time, the ability of the operators was put to the test. The comparison indicates that the errors due to the operator are less than 1 µGal, i.e. within the observational errors