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Fabiani, U.
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- PublicationRestrictedMorphological updating on the basis of integrated DTMs: study on the Albano and Nemi craters(2008-12)
; ; ; ; ; ;Pietrantonio, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Baiocchi, V.; DITS, Università la Sapienza ;Fabiani, U.; DITS, Università la Sapienza ;Mazzoni, A.; DITS, Università la Sapienza ;Riguzzi, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; ; ; ; The Colli Albani Volcano has recently developed particular interest in the geophysical community for some peculiar characteristics imputable to a recent residual volcanic activity, thus evidencing that it cannot be considered extinguished yet. On April 2006 an airborne laser scanning (ALS) survey of the Albano and Nemi craters has been carried out to obtain a high resolution digital terrain model (DTM) of the area. We have compared the accuracy of the ALS heights with those obtained by a fast GPS kinematic survey, obtaining maximum deviation within 50 cm. Then, we have integrated the ALS survey of the craters and the bathymetry of the Albano lake to achieve a complete DTM, useful for morphological studies. In addition, with a GNSS/RTK survey (July 2007) we have estimated the Albano and Nemi mean lake levels respectively at 288.16 m and 319.02 m (asl). Based on the integrated DTM and the newly estimated water level values, we have evaluated about 21.7 106 of m3 the water volume loss of the Albano lake from 1993 to 2007, with an average rate of about 1.6 106 m3/yr.162 34 - PublicationOpen AccessIntegrazione di rilievi batimetrici e laser scanner aereo nell'area dei Colli Albani(2006)
; ; ; ; ; ; ;Baiocchi, V.; DITS - Area di Geodesia e Geomatica, Università di Roma "La Sapienza", via Eudossiana, 18 - 00184 Roma ;Anzidei, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Esposito, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Fabiani, U.; DITS - Area di Geodesia e Geomatica, Università di Roma "La Sapienza", via Eudossiana, 18 - 00184 Roma ;Pietrantonio, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Riguzzi, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; ; ; ; ; The Colli Albani are a Quaternary volcanic complex located about 15 km SE of Rome, comprised in an area of latitudes 41.6-41.9 N and longitudes 12.5-12.9 E. It has recently developed particular interest in the geophysical community for some peculiar characteristics imputable to a residual volcanic activity. In the framework of a project financed by the Department of the Civil Protection devoted to the study of the Colli Albani deformations, we have recently realized a bathymetric survey of the Albano lake and an airborne laser scanner survey of the Albano and Nemi craters. The present work is composed by two phases. In a first phase the accuracy of the DEM achieved by the laser scanner is verified through a comparison with a GPS kinematic survey. In particular, our aim is to test if the use of DEM in different formats, TIN or Grid, could lead to meaningful differences in terms of accuracy and precision. In a second phase of the work, we merged the LIDAR and bathymetric data with the purpose to achieve a complete digital terrain model of the area that could allow in the next future geo-morphological analyses of the whole volcanic structure.395 1139 - PublicationRestrictedIntegér bathymétrie et lidar(2007-02)
; ; ; ; ; ; ;Baiocchi, V.; DITS Roma La Sapienza ;Anzidei, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Esposito, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Fabiani, U.; DITS Roma La Sapienza ;Pietrantonio, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia ;Riguzzi, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia; ; ; ; ; Les collines Albanes désignent un complexe du quaternaire, situé environ 15 km au sud-est de Rome, qui occupe grosso modo un carré délimité par les latitudes 41,6° et 41,9° nord, et les longitudes 12,5° à 12,9° est. Cette zone revet un intèret particulier pour la communauté géophysique en raison de ses caractéristiques particuliéres dues à un volcanisme résiduel.221 34