08 Nov 2022
 | 08 Nov 2022
Status: a revised version of this preprint is currently under review for the journal NHESS.

Brief communication: Landslides on the Argentinian Santa Cruz river mega dam works revealed by PSI DInSAR

Guillermo Tamburini-Beliveau, Sebastián Balbarani, and Oriol Monserrat

Abstract. In the dam industry, safety and environmental aspects are crucial beyond production goals. By monitoring landslides associated with the construction of a hydro-power dam in the Santa Cruz River in the Argentine Patagonia, this paper contributes to the assessment of the project safety. Ground deformation is monitored using SAR satellite data and the Persistent Scatterer Interferometry technique, and contrasted with optical imagery, geological and technical reports and fieldwork. The results include maps of accumulated deformation and deformation time series for the locations of the anchorages of the dam, providing a new and independent dataset to assess the dam work integrity.

Guillermo Tamburini-Beliveau et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on nhess-2022-250', Anonymous Referee #1, 13 Dec 2022
    • AC1: 'Reply on RC1', Guillermo Tamburini-Beliveau, 19 Dec 2022
  • RC2: 'Comment on nhess-2022-250', Anonymous Referee #2, 15 Mar 2023
    • AC2: 'Reply on RC2', Guillermo Tamburini-Beliveau, 29 Mar 2023

Guillermo Tamburini-Beliveau et al.

Guillermo Tamburini-Beliveau et al.


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Short summary
The Santa Cruz river flows from the Andes to the Atlantic, crossing the gorgeous Patagonian steppe. There, two mega hydroelectric dams are being built and once completed the 50 % of the river's course will be flooded. It is located in such a remote area that it remains unknown even to the argentines. Structural problems emerged during the dam’s construction and using remote sensing techniques we have been able to identify them, landslides affecting the dam’s wall anchorages locations.