%0 Journal Article
%T InSAR Observation for the Surface Displacements at Mt. Etna between 2003 and 2007
%A Syeda Sabikun Nahar
%A Arif Mahmud
%J International Journal of Geosciences
%P 159-171
%@ 2156-8367
%D 2015
%I Scientific Research Publishing
%R 10.4236/ijg.2015.62010
%X This research is mainly
devoted to InSAR observations using Poly-Interferogram Rate and Time-series
Estimator (¦Ð-rate) software to investigate continuous surface displacement at
Mt. Etna (Sicily), Italy between 2003 and 2007. Using ascending and descending
SAR images produced by European Space Agency¡¯s ENVISAT, we generate a set of
interferograms which are used to determine the
deformation history of Etna from 2003 to 2007. Using (¦Ð-rate), we can generate
the InSAR time-series and ratemap
while minimizing errors induced by the satellites orbit and atmospheric phase delays. During the period of
2003-2007, three separate eruptions were observed. In order to explain the
deformation, we solve three displacement rate for 2003-2005, 2006 and 2007. As
expected, the result suggests that displacement rates are not constant with
respect to time. During 2006 the volcano appeared to switch from a period of
deflation to a period of inflation. These results highlight the importance of
InSAR for generating deformation time-series around Mt. Etna, and with the application of
numerical models these results can be used to estimate the amount of magma moving in the
subsurface.
%K InSAR
%K Interferogram
%K Ratemap
%K Eruptions
%K Magma and ¦Ð-Rate
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53942