This article illustrates the methods used to construct and compute two new geodetic networks set up in recent years by the Region of Umbria in collaboration with the University of Perugia. The first of the two networks is a “passive” type network, which consists of some hundreds of planimetric and altimetric vertexes evenly distributed throughout the Region to densify the IGM95 national network, whereas the second “active” network consists of ten permanent GNSS stations. Whilst these networks were being implemented, a refining of the vertical datum in the region was also obtained by the setting up of new precision levelling lines integrating the IGM lines, and a regional geoid model, constructed in collaboration with the Polytechnic of Milan to locally improve the national ITALGEO 2005 model.
New active and passive networks for a support to geodetic activities in Umbria
FASTELLINI, GUIDO;RADICIONI, Fabio;STOPPINI, Aurelio
2008
Abstract
This article illustrates the methods used to construct and compute two new geodetic networks set up in recent years by the Region of Umbria in collaboration with the University of Perugia. The first of the two networks is a “passive” type network, which consists of some hundreds of planimetric and altimetric vertexes evenly distributed throughout the Region to densify the IGM95 national network, whereas the second “active” network consists of ten permanent GNSS stations. Whilst these networks were being implemented, a refining of the vertical datum in the region was also obtained by the setting up of new precision levelling lines integrating the IGM lines, and a regional geoid model, constructed in collaboration with the Polytechnic of Milan to locally improve the national ITALGEO 2005 model.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
