Publication Date:
2017-04-04
Description:
This work is aimed at improving the performance of the ground NEtwork of Thermal and VIsible and cameras
located on Mt. Etna volcano (Etna_NETVIS) by optimizing its observational capability on lava flows evolution
and by developing dedicated tools for systematically measuring quantitative parameters of known accuracy.
The first goal will be achieved through the analysis of the geometrical configuration and its improvement
by means of the establishment of additional observation sites to be equipped with mobile stations, depending on
the area of interest. This will increment the spatial coverage and improve the observation of the most active areas
for surface sin-eruptive processes.
For the second objective we will implement new processing tools to permit a reliable quantitative use of
the data collected by the surveillance sensors of NETVIS, extending their capability in monitor the lava flow
thermal and spatial evolution and by providing georeferenced data for rapid mapping scope. The tool will be
used to automatically pre-process multitemporal datasets and will be tested on both simulated and real scenarios.
Thanks to data collected and archive by the NETVIS INGV team, we will have the opportunity to develop and test
the procedure in different operational conditions selected among the large number of lava flows coupled to lava
fountan events occurred between 2011 and 2013.
Additionally, Etna_NETVIS data can be used to downscale the information derived from satellite data and/or to
integrate the satellite datasets in case of incomplete coverage or missing acquisitions (both due to low revisiting
time or bad geometrical conditions). Therefore an additional goal is that of comparing/integrating quantitative data
derived from visible and radar satellite sensors with the maps obtained using Etna_NETVIS. The procedure will
take into account the discrepancy among the different datasets in terms of accuracy and resolution and will attempt
to provide a combined approach (based on error analysis and data weighting) to evaluate the final results reliability.
Preliminary results on the procedure and algorithm adopted for geometric and radiometric sensor calibration,
definition of optimized configurations through simulation and for extracting updated mapping data from
multi-temporal dataset will be presented.
This work is developed in the framework of the EU-FP7 project “MED-SUV” (MEDiterranean SUpersite
Volcanoes).
Description:
Published
Description:
Vienna, Austria
Description:
5V. Sorveglianza vulcanica ed emergenze
Description:
open
Keywords:
Lava Flow and mapping
;
04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
Abstract
