Local authorities responsible for land management are increasingly tackling with the issues related to urban development and the protection of natural and cultural heritage. The progressive fund reduction for ordinary activities of risk assessment at local scale encourages the development and implementation of cost-effective surveying methods. We designed a RTK GPS-supported method suitable to facilitate the collection of position and height parameters of morphologic and man-made elements on the ground, benefitting of fast acquisition over huge areas of investigation and unambiguous positioning with centimetre level accuracy. We present the results of experimentations performed on two distinct typologies of structural systems — (re-shaped) riverbanks and dykes; extended archaeological monuments —, whose maintenance is nowadays crucial, respectively, for the public safety from floods and the economic and touristic enhancement. A comprehensive mapping of the riverbanks and hydraulic works was carried out along both the sides of the Arno River, actually considered by the Civil Protection Department as the second most hazardous natural system in Italy. The combination of GPS measurements and mapping/cartography background led to the hazard assessment, improving the knowledge on the urban/suburban areas highly susceptible to floods. Parallel tests were executed on the archaeological heritage of Rome (Italy), exploiting the RTK GPS measures to validate deformation data (2003–2010) retrieved from a satellite radar monitoring by Persistent Scatterer Interferometry. The detected displacements were correctly spatially attributed to the elements on the ground and the critical sectors were identified, sending a prompt warning to the monument conservators with direct benefits for restoration planning.

Hazard assessment, monitoring and rapid mapping of natural and man-made structures

Morelli S.;
2012-01-01

Abstract

Local authorities responsible for land management are increasingly tackling with the issues related to urban development and the protection of natural and cultural heritage. The progressive fund reduction for ordinary activities of risk assessment at local scale encourages the development and implementation of cost-effective surveying methods. We designed a RTK GPS-supported method suitable to facilitate the collection of position and height parameters of morphologic and man-made elements on the ground, benefitting of fast acquisition over huge areas of investigation and unambiguous positioning with centimetre level accuracy. We present the results of experimentations performed on two distinct typologies of structural systems — (re-shaped) riverbanks and dykes; extended archaeological monuments —, whose maintenance is nowadays crucial, respectively, for the public safety from floods and the economic and touristic enhancement. A comprehensive mapping of the riverbanks and hydraulic works was carried out along both the sides of the Arno River, actually considered by the Civil Protection Department as the second most hazardous natural system in Italy. The combination of GPS measurements and mapping/cartography background led to the hazard assessment, improving the knowledge on the urban/suburban areas highly susceptible to floods. Parallel tests were executed on the archaeological heritage of Rome (Italy), exploiting the RTK GPS measures to validate deformation data (2003–2010) retrieved from a satellite radar monitoring by Persistent Scatterer Interferometry. The detected displacements were correctly spatially attributed to the elements on the ground and the critical sectors were identified, sending a prompt warning to the monument conservators with direct benefits for restoration planning.
978-0-646-57800-2
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11576/2690146
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