Multi-temporal InSAR monitoring of the Aswan high dam (Egypt)

Multi-temporal InSAR monitoring of the Aswan high dam (Egypt)

Ruiz-Armenteros, A.M.
Delgado, J.M.
Lamas-Fernandez, F.
Bravo-Pareja, R.
Lazecky, M.
Bakon, M.
Sousa, J.J.
Caro-Cuenca, M.
Verstraeten, G.
Hanssen, R.F.

2018

The Aswan High Dam, Egypt, was built in the 1960s and is one of the biggest dams in the world. It stopped the seasonal flood of Nile river allowing the urban expansion of cities/villages and the full year cultivation, producing 10x10 9 kWh of power annually. The dam is located in an area where several earthquakes (M L <6) occurred from 1981 to 2007. In this paper, we want to identify any potential damage that could be caused to the dam, and assess its overall structural stability using Multi-Temporal InSAR (MT-InSAR). To reach this goal, we process Envisat data from descending orbits acquired between 2003 and 2010. Our initial estimates show relatively small rates (maximum around -3 mm/yr in the satellite Line-Of-Sight) of subsidence, whose implications must be further investigated. In addition, we perform a preliminary stress-strain analysis of the dam using FEL and FEM methods to assess if the detected movements correspond to the expected vertical behavior for such mega-structure. © 2018 IEEE

http://resolver.tudelft.nl/uuid:e1681e25-4dc1-4e32-a6e8-f8f9a54839e2

865911

Institute of Electrical and Electronics Engineers Inc.

9781538671504

International Geoscience and Remote Sensing Symposium (IGARSS), 38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018, 22 July 2018 through 27 July 2018, 2220-2223

8517276

Sponsor: Geoscience and Remote Sensing Society (GRSS);The Institute of Electrical and Electronics Engineers (IEEE)

conference paper