Publication Date:
2017-04-04
Description:
High precision aerial photogrammetry has been
used in addition to other geophysical techniques such as
bathymetric surveys, geodetic measurements, microseismicity
recording, etc., for monitoring slope deformations
and the volcanic activity of Stromboli Island (Aeolian Arc,
Italy), during the last effusive eruption, which started on
December 28, 2002 and soon after the major landslide/
tsunami event of December 30. Qualitative and quantitative
description of topographic and morphological changes of
the Sciara del Fuoco were possible thanks to a recent preeruption
photogrammetric survey performed in 2001; the
comparisons of 12 multi-temporal digital terrain models
carried out during the period January–June 2003 were used
to evaluate the displaced mass by the landslide, the lava
accumulation and the erosion processes of the Sciara del
Fuoco. After the end of the eruption, four additional photogrammetric surveys were performed between July
2003 and October 2005 to monitor the evolution of the
slope and detect potential instability phenomena. The slope
appeared significantly modified and continued to evolve,
showing marked erosion both on the lower part and toward
the craters terrace. Over the same period, the new lava
flows showed progressive contraction of the thicker part of
the lava pile caused by its cooling and compaction and the
possible sliding along the shear surface of the December
2002 deep-seated movement. The present morphology
seems to be far from equilibrium and the deformation
processes are still ongoing, justifying a continuous monitoring
activity to understand the evolution of these
instability phenomena.
Description:
Dipartimento della Protezione Civile (DPC) and Istituto Nazionale di Geofisica e Vulcanologia (INGV), Project V1_2
Description:
Published
Description:
703–715
Description:
1.5. TTC - Sorveglianza dell'attività eruttiva dei vulcani
Description:
JCR Journal
Description:
reserved
Keywords:
Stromboli
;
Sciara del Fuoco
;
Digital photogrammetry
;
Digital terrain models
;
Morphology
;
Landslide
;
Slope deformation
;
04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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