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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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La importancia de revisar, aumentar la escala y actualizar cartografías geológicas y geomorfológicas para la diagnosis de inestabilidades del terreno

Authors: Galve, J. P.; Torre, D.; Reyes-Carmona, Cristina; Alfonso-Jorde, David; Ballesteros, Daniel; Menichetti, M.; Piacentini, D.; +2 Authors

La importancia de revisar, aumentar la escala y actualizar cartografías geológicas y geomorfológicas para la diagnosis de inestabilidades del terreno

Abstract

La investigación sobre inestabilidades del terreno (movimientos en masa o subsidencias) ha avanzado notablemente gracias a las técnicas de teledetección, tales como la interferometría satelite (InSAR). Sin embargo, la cantidad de datos disponibles en este momento puede llegar a ser contraproducente en la identificación de áreas peligrosas, al focalizarse los estudios solo en las zonas con movimientos detectados en la actualidad y obviando aquellos rasgos distintivos de actividad menos reciente. En La Herradura (Granada), en un área ampliamente estudiada combinando múltiples técnicas de teledetección, hemos aplicado metodologías clásicas apoyadas con la última tecnología para actualizar cartografías geológicogeomorfológicas de detalle. La nueva cartografía, que mejora en precisión y exactitud la hasta el momento disponible, puso de relevancia que los movimientos en masa activos forman parte de masas deslizadas mayores donde se desarrollan varios procesos de ladera, desde desprendimientos y flujos lentos superficiales a deslizamientos roto-traslacionales profundos. La revisión de los límites de los deslizamientos previamente cartografiados reveló un área afectada por movimientos de ladera casi cinco veces mayor de la que se había considerado. Estos hallazgos resaltan la necesidad de revisar, aumentar la escala y actualizar las cartografías geológicas y geomorfológicas existentes, dada la importancia que tiene esta investigación básica como complemento de las tecnologías más modernas.

[EN] Research on ground instabilities (mass movements or subsidence) has advanced notably thanks to remote sensing techniques such as satellite interferometry (InSAR). However, the amount of data nowadays available can, on the other hand, be harmful for the identification of areas affected by most active instabilities, as the studies focus only on the currently detected zones in motion and ignore those features indicating less recent activity. In La Herradura (Granada), an area extensively studied combining diverse remote sensing techniques, we have applied traditional methodologies supported by the latest technology to update geological-geomorphological maps. The new mapping, which improved in precision and accuracy the one available so far, highlighted that active mass movements are part of larger landslide bodies where several slope processes are developed, from rock falls and slow-moving flows to deep-seated roto-translational landslides. Revision of previously mapped landslide boundaries and geometry revealed an area affected by slope movements almost five times larger than previously considered. These findings highlight the need to review, downscale, and update existing geologic and geomorphological maps, given the importance of this research as a basic complement to most modern technologies.

Comunicación oral presentada en XI Congreso Geológico de España, Ávila del 2 al 6 de julio de 2024

Country
Spain
Related Organizations
Keywords

Cartografía geológica-geomorfológica, Deslizamientos, Teledetección, InSAR.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
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