First assessment of the interferometric capabilities of SAOCOM-1A: New results over the Domuyo Volcano, Neuquén Argentina. (March 2021)

• Record Type: Journal Article
• Authors: Roa, Y.; Rosell, P.; Solarte, A.; Euillades, L.; Carballo, F.; García, S.; Euillades, P.
• Is Part Of: Journal of South American earth sciences. Volume 106(2021)
• Publication Date: 2021-03
• Subjects: DinSAR -- L-band -- SAOCOM -- Volcano deformation; Geology -- Latin America -- Periodicals; Earth sciences -- Latin America -- Periodicals; Geology -- Antarctica -- Periodicals; Earth sciences -- Antarctica -- Periodicals; Geology -- Caribbean Area -- Periodicals; Earth sciences -- Caribbean Area -- Periodicals; Géologie -- Amérique latine -- Périodiques; Sciences de la terre -- Amérique latine -- Périodiques; Géologie -- Antarctique -- Périodiques; Sciences de la terre -- Antarctique -- Périodiques; Géologie -- Caraïbes (Région) -- Périodiques; Sciences de la terre -- Caraïbes (Région) -- Périodiques; Earth sciences; Geology; Antarctica; Caribbean Area; Latin America; Periodicals; 550.5
• DOI: 10.1016/j.jsames.2020.102882
• Languages: English
• ISSNs: 0895-9811

Abstract

Abstract: Differential Interferometric Synthetic Aperture Radar (DInSAR) has been used for measuring ground deformations with high both spatial and temporal resolutions. The effectiveness of this technique has been extensively proved using mainly C and X band because of the availability of SAR platforms operating in these frequencies. In vegetated areas, L-band SAR is more adequate because of their less sensitivity to temporal decorrelation. This work presents a review of the characteristics of the L-band Argentinian satellite SAOCOM-1A and its potential in deformation monitoring. In order to show it, we processed a dataset acquired over the Domuyo Volcano (Neuquén, Argentina). Time series and mean deformation maps are validated against those computed using a Sentinel-1 dataset spanning the same time period. Results show an inflation pattern of 6 cm between August 2019 and May 2020. As expected and despising the scarce availability of SAOCOM scenes, its mean velocity map is admittedly more coherent in comparison with the Sentinel-1. Thus, we demonstrate, for the first time, the computation of deformation time series using SAOCOM data. Highlights: Satélite Argentino de Observación con Microondas (SAOCOM). Differential Interferometric Synthetic Aperture Radar (DInSAR). Domuyo volcanic complex (DVC). Potential of the polarimetric L-band Argentinian satellite SAOCOM-1A for deformation monitoring. Review of the characteristics of the L-band Argentinian satellite SAOCOM-1A.