Physics
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3509305n&link_type=abstract
Geophysical Research Letters, Volume 35, Issue 9, CiteID L09305
Physics
17
Volcanology: Remote Sensing Of Volcanoes, Volcanology: Instruments And Techniques, Volcanology: Volcano Monitoring (7280), Volcanology: Volcanic Hazards And Risks, Volcanology: General Or Miscellaneous
Scientific paper
Morphostructural data derived from Lidar (Light detection and ranging) surveys carried out on Mount Etna in 2005 and 2007 are compared with earlier aerophotogrammetric surveys in 1986 and 1998. These data render an unprecedentedly clear and quantitative image of morphostructural and volumetric changes that have affected the summit area of the volcano in the past two decades and permit the production of a new topographic map. The computed volume gain during the 1986-2007 period amounts to 112 +/- 12 × 10 6 m 3, at a mean annual rate of ~5.3 × 10 6 m 3. The comparison of the various surveys furthermore emphasizes the levels of accuracy and resolution of the different techniques applied. The Lidar technology used in 2007 allows production of high-precision maps in near-real-time, facilitating work concerning environmental hazards such as numerical simulations of, e.g., lava flows.
Behncke Boris
Bisson M.
Isola Ilaria
Mazzarini Francesco
Neri Marco
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