Application of Digital Terrain Model to volcanology

Three-dimensional reconstruction of the ground surface (Digital Terrain Model, DTM), derived by airborne GPS photogrammetric surveys, is a powerful tool for implementing morphological analysis in remote areas. High accurate 3D models, with submeter elevation accuracy, can be obtained by images acquired at photo scales between 1:5000-1:20000. Multitemporal DTMs acquired periodically over volcanic area allow the monitoring of areas interested by crustal deformations and the evaluation of mass balance when large instability phenomena or lava flows have occurred. The work described the results obtained from the analysis of photogrammetric data collected over the Vulcano Island from 1971 to 2001. The data, processed by means of the Digital Photogrammetry Workstation DPW 770, provided DTM with accuracy ranging between few centimeters to few decimeters depending on the geometric image resolution, terrain configuration and quality of photographs.

ACHILLI, V., M. ANZIDEI, P. BALDI, M. MARSELLA, P. MORA, G. TARGA, A. VETTORE and L. VITTUARI (1997): GPS and Digital Photogrammetry: an Integrated Approach for Monitoring Ground Deformations on a Volcanic Area, Proceedings of ISPRS WG VI/3 "International cooperation and technology transfer" Meeting 3 - 7 Feb 1997, Padova, XXXII, 1-6.
ACHILLI, V., P. BALDI, L. BARATIN, C. BONINI, E. ERCOLANI, S. GANDOLFI, M. ANZIDEI and F. RIGUZZI (1998): Digital photogrammetric survey on the island of Vulcano, Acta Vulcanologica, 10, 1, 1-5.
BALDI, P., S. BONVALOT, P. BRIOLE and M. MARSELLA (2000): Digital photogrammetry and kinematic GPS for monitoring volcanic areas, Geophysics Journal International, 142, 3, 801-811.
BALDI, P., S. BONVALOT, P. BRIOLE, M. COLTELLI, K. GWINNER, M. MARSELLA, G. PUGLISI and D. REMY (2002): Validation and comparison of different techniques for the derivation of digital elevation models and volcanic monitoring (Vulcano Island, Italy), International Journal of Remote Sensing, 23, 22, 4783-4800.
BALDI, P., M. FABRIS, M. MARSELLA and A. PESCI (2004): Co-registrazione di Modelli Digitali del Terreno mediante adattamento ai minimi quadrati delle superfici, Proceedings of the 8° Conferenza Nazionale ASITA, Roma, Italy, 14-17 December 2004, 1, pp. 247-252
BALDI, P., M. FABRIS, M. MARSELLA and R. MONTICELLI (2005): Monitoring the morphological evolution of the Sciara del Fuoco during the 2002-2003 Stromboli eruption using multi-temporal photogrammetry, ISPRS Journal of Photogrammetry & Remote Sensing, 59, 199-211.
DAVIS, C.H., H. JIANG and X. WANG (2001): Modeling and Estimation of the Spatial Variation of Elevation Error in High Resolution Deems from Stereo-Image Processing, IEEE Transactions on Geoscience and Remote Sensing, 39, 11, 2483-2489.
GABBIANELLI, G., C. ROMAGNOLI, ROSSI P.L., N. CALANCHI, and F. LUCCHINI (1991): Submarine morphology and tectonics of Vulcano (Aeolian Island, Southeastern Tyrrhenian Sea), Acta Vulcanologica, 1, 135-141.
HEIPKE, C. (1995): State-of-the-art of Digital Photogrammetric Workstations for Topographic Applications, Photogrammetric Engineering and Remote Sensing, 61, 49-56.
KARRAS, G.E. and E. PETSA (1993): DEM Matching and detection of deformation in close range photogrammetry without control, Photogrammetric Engineering & Remote Sensing, 59, 9, 1419-1424.
KRAUS, K. (1998): Fotogrammetria, Levrotto & Bella Ed., 1, 447-498.
LI, Z., Z. XU, M. CEN and X. DING (2001): Robust surface matching for automated detection of local deformations using least-median-of-square estimator, Photogrammetric Engineering & Remote Sensing, 67, 11, 1283-1292.
MITCHELL, H.L., and R.G. CHADWICK (1999): Digital photogrammetric concepts applied to surface deformation studies, Geomatica, 53, 4, 405-414.
PILGRIM, L.J. (1996a): Surface matching and difference detection without the aid of control points, Survey Review, 33, 291-304.
PILGRIM, L.J. (1996b): Robust estimation applied to surface matching, ISPRS Journal of Photogrammetry & Remote Sensing, 51, 243-257.
RASÀ, R., and L. VILLARI (1991): Geomorphological and morpho-structural investigations on the Fossa Cone (Vulcano, Aeolian Islands): a first outline, Acta Vulcanologica, 1, 127-133.
TINTI, S., E. BORTOLUCCI and A. ARMIGLIATO (1999): Numerical simulation of the landslide-induced tsunami of 1988 on Vulcano Island, Italy, Bulletin of Volcanology, 61, 121-137.
ZLOTNICKI, J., J.C. RUEGG, P. BACHELEY and P. BLUM (1990): Eruptive mechanism on Piton de la Fornaise volcano associated with the December 4, 1983, and January 18, 1984 eruption from ground deformation monitoring and photogrammetric surveys, Journal of Volcanology and Geothermal Research., 40, 197-217.