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OGSOGS – National Institute of Oceanography and Applied Geophysics
“Cornegliano Stoccaggio” Monitoring
Seismological
Research Centre

DInSAR data - Period 2015-today

The interferometric analysis for the period March 2015 - May 2019 was performed using the SBAS-DInSAR technique using Sentinel-1 (S-1) data for the area of interest and corresponding to 200 images acquired along ascending orbits and 191 along descending orbits.

Figure 1 shows the distribution of S-1 data in the time/baseline-perpendicular plane.

Perpendicular Baseline [m]: -200 - 200. Time [year]: 2015 - 2019.
Figure 1 - Distribution in the time/baseline-perpendicular plane of S-1 SAR data acquired in the area of interest. Each tick represents one SAR image acquired from descending orbits, and each rhombus is a SAR image obtained from ascending orbits.


Figure 2 and Figure 3 show the S-1 data distributions in the time/baseline-perpendicular plane acquired from descending and ascending orbits, respectively. The black and red triangles represent the S-1A and S-1B data.

Figure 2 - Distribution in the time/baseline-perpendicular plane of S-1 SAR data acquired from descending orbits
Figure 2 - Distribution in the time/baseline-perpendicular plane of S-1 SAR data acquired from descending orbits over the area of interest. The black and red triangles represent the S-1A and S-1B data, respectively.






Figure description

2015 - 2020; -200 - 100.

Figure 3 - Distribution in the time/baseline-perpendicular plane of S-1 SAR data acquired from ascending orbits
Figure 3 - Distribution in the time/baseline-perpendicular plane of S-1 SAR data acquired from ascending orbits over the area of interest. The black and red triangles represent the S-1A and S-1B data, respectively.







Figure description

2015 - 2020; -100 - 100.

Table 1 shows the main characteristics common to the two S-1 datasets used, while Table 2 shows the details of each dataset (number of acquisitions and interferograms considered and the corresponding time intervals).

Table 1 - Main characteristics common to the two S-1 SAR datasets used.
Lunghezza d’onda5.56 cm
Risoluzione spaziale nominale~ 15 m x 4 m
Risoluzione spaziale dei risultati interferometrici~ 30 m x 30 m
Estensione spaziale~190 km x 70 km
Periodo di osservazionemarzo 2015 – maggio 2019
Table 2 - Main features related to each of the two S-1 SAR datasets used.
Periodo di osservazione Numero di acquisizioni utilizzate Numero di interferogrammi
Discendente22/03/2015-30/05/2019191528
Ascendente23/03/2015-31/05/2019200553