Analysis of ground movements in Guayaquil (Ecuador) by means of G-POD service (A-DInSAR technique)
DOI:
https://doi.org/10.55407/geogaceta102382Keywords:
ground movements, A-DInSAR, G-POD, Ecuador, GuayaquilAbstract
In this work a ground movement preliminary analysis in the metropolitan area of Guayaquil (Ecuador) has been realised by means of the A-DInSAR technique. For this purpose, SAR images of Envisat ASAR were processed between February 2003 and August 2005 through the free G-POD service. The results allowed to identify three important deformation zones, with average line-of-sight (LOS) velocities ranging from -19.2 to 10.1 mm/year. In addition, the accumulated deformations are between 24 and 52 mm. These ground movements are related to different geological processes: I) urban subsidence, II) floods and III) slope instabilities. This study illustrates the usefulness of G-POD service for realise A-DInSAR processing like preliminary analysis of geohazards associated to ground movements.
References
Barra, A., Solari, L., Béjar-Pizarro, M., Monserrat, O., Bianchini, S., Herrera, G., Crosetto, M., Sarro, R., González-Alonso, E., Mateos, R. M., Ligüerzana, S., López, C. y Moretti, S. (2017). Remote Sensing 9(10), Art. 1002. https://doi.org/10.3390/rs9101002
Berardino, P., Fornaro, G., Lanari, R. y Sansosti, E. (2002). IEEE Transactions on Geoscience and Remote Sensing 40(11), 2375-2383. https://doi.org/10.1109/TGRS.2002.803792
Casu, F., Elefante, S., Imperatore, P., Zinno, I., Manunta, M., De Luca, C. y Lanari, R. (2014). IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 7(8), 3285-3296. https://doi.org/10.1109/JSTARS.2014.2322671
Delgado, A. (2013). Cities 31, 515-532. https://doi.org/10.1016/j.cities.2011.11.001
De Luca, C., Cuccu, R., Elefante, S., Zinno, I., Manunta, M., Casola, V., Rivolta, G., Lanari, R. y Casu, F. (2015). Remote Sensing 7, 15630-15650. https://doi.org/10.3390/rs71115630
Ferreti, A., Prati, C. y Rocca, F. (2001). IEEE Transactions on Geoscience and Remote Sensing 39(1), 8-20. https://doi.org/10.1109/36.898661
Galve, J. P., Pérez-Peña, J. V., Azañón, J. M., Closson, D., Caló, F., Reyes-Carmona, C., Jabaloy, A., Ruano, P., Mateos, R. M., Notti, D., Herrera, G., Béjar-Pizarro, M., Monserrat, O. y Bally, P. (2017). Remote Sensing 9(12), Art. 1291. https://doi.org/10.3390/rs9121291
Herrera, G., Gutiérrez, F., García-Davalillo, J.C., Guerrero, J., Notti, D., Galve, J. P., Fernández-Merodo, J. A. y Cooksley, G. (2013). Remote Sensing of Environment 128, 31-43. https://doi.org/10.1016/j.rse.2012.09.020
Mora, O., Mallorquí, J.J. y Broquetas, A. (2003). IEEE Transactions on Geoscience and Remote Sensing 41(10), 2243-2253. https://doi.org/10.1109/TGRS.2003.814657
Morante, M. F., Aguilar, M., Ramírez, G., Blanco, R., Carrión, P., Briones, J. y Berrezueta, E. (2019). Geosciences 9(3), Art. 103. https://doi.org/10.3390/geosciences9030103
Núñez del Arco, E. (2003). Geología del Ecuador. ESPOL, 253 p.
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The Author retains the copyright and grants to the Geological Society of Spain the right of first publication and distribution of this article for the duration of the literary property under Spanish law, in all current or future media, being the work available simultaneously to its publication, under the Creative Commons CC BY-NC-SA 4.0 license, which allows copying, transforming the work, but if any transformation is distributed, the new work must be distributed under the same license, and never for commercial purposes, while acknowledging the authorship and original publication in GEOGACETA, so that the only role of copyright is to give authors control over the integrity of their works and the right to be properly acknowledged and cited.
