Detección de zonas urbanas vulnerables afectadas por movimientos del terreno

mediante radar satélite

Gerardo HerreraMarta Béjar

REUNIÓN DEL GRUPO DE TRABAJO DE LA COMISIÓNESPECIALIZADA DE OBSERVACIÓN DEL TERRITORIO

CONSEJO SUPERIOR GEOGRÁFICO

28 de mayo de 2019Instituto Geográfico Nacional. C/ General Ibáñez de Ibero, 3. Madrid

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Estudiar peligros geológicos (terremotos, volcanes, movimientos de ladera y subsidencia) mediante interferometría radar para reducir su impacto en la sociedad

Objetivo

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Fuentes de datos satélite radar

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SENTINEL: la constelación satélite radar de la UE

5Geohazards InSAR laboratory and Modelling group

Béjar-Pizarro, M., Álvarez Gómez, J., Staller, A., Luna, M., Pérez-López, R., Monserrat, O., ... & Mateos, R. (2018). InSAR-based mapping to support decision-making after an earthquake. Remote Sensing, 10(6), 899

Geohazards InSAR laboratory and Modelling group

Terremotos: apoyo gestión de emergencias

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EU-GMS / Ground Motion Spatial Database of Europe

EU-GMS

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EU-GMS: ground motion data based on Copernicus Sentinel-1 data for the Copernicus participating states

EU-GMS

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• Copernicus Committee September 2017

• Acceptance and uptake of the EU-GMS/ GMSDE into the Workprogram 2018 (C(2018) 2 final, 10.01.2018)

• Copernicus User Forum on October 13th, 2017

• With unanimous assent the Copernicus User Forum recommends the EU-GMS / GMSDE for immediate realization in Copernicus Portfolio.

• The Commission authorized EEA (European Environmental Agency as entrusted entity) with the implementation of the EU-GMS and informs the Member States accordingly.

• January 2019 –

• Tender for the implementation of the EU-GMS Advisory Board launched by EEA

• Tender for the specification EU-GMS launched by EEA

EU-GMS

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EU-GMS

Direct Users of EU-GMS are

• Geological and geodetic surveys

• Public authorities at European, national, regional and municipality level

• Academia

Main User Communities benefitting of the EU-GMS downstream Services Users include:

Geological and geodetic surveys

Road, railway and mining administrations

Regulators and planners

Public authorities at European, national, regional and municipal levels

Citizens of Copernicus participating states

Industry (infrastructure management, engineering, oil and gas, insurance, …)

Academia

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EU-GMS

In the context of the EU-GMS service the main products are:

● (Level 1)

o Copernicus Sentinel-1 Single Look Complex data. Input data only, not an EU-GMS product.

● Level 2a (an intermediate product)

o Basic displacement information provided in the satellite line-of-sight (LOS), with projected to ground geometry

and quality measures per measurement point, in radar geometry

o The product will be delivered for individual and consistent frames (i.e., same relative orbit) of image stacks.

o Community best practices and state-of-the art algorithms shall be used in data processing and analysis.

o Level 2b

o Level 2a products integrated into a standardized reference frame using external information such as GNSS

network measurements and mosaicked.

o For products integration and mosaicking best geodetic practices will be utilized.

o EUREF network for georeferencing.

o Level 3

o East-West and Up-Down deformation rates produced by combining Level 2b data stemming from ascending

and descending orbits.

o Granularity of level 3 product, i.e. maximum granularity, sampling grid size, depends on the area of interest,

and the deformation signal.

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MAPAS INSAR a escala nacional: Noruega

https://insar.ngu.no/

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Herrera, G., Mateos, R. M., García-Davalillo, J. C., Grandjean, G., Poyiadji, E., Maftei,

R., ... & Trigila, A. (2018). Landslide databases in the Geological Surveys of

Europe. Landslides, 15(2), 359-379.

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http://www.europe-geology.eu/map-viewer/

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Acuíferos

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Vega Media y Baja del Segura

16Herrera et al. 2017. Los movimientos de ladera en España: Hacia una base de datos conjunta. IX Simposio Nacional sobre Taludes y Laderas Inestables. E. Alonso, J. Corominas, M. Hürlimann (Eds.) Santander, 27-30/06/17

Caracterizar los movimientos de ladera en España

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Herrera et al. Mapping ground movements in open pit mining areas using differential SAR interferometry.

International Journal of Rock Mechanics and Mining Sciences, 2010, vol. 47, no 7, p. 1114-1125.

Zonas mineras

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Zonas mineras

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Evaluar la vulnerabilidad de zonas urbanas

Béjar-Pizarro, M., Notti, D., Mateos, R. M., Ezquerro, P., Centolanza, G., Herrera, G., ... & Fernández, J. (2017). Mapping Vulnerable Urban Areas Affected by Slow-Moving Landslides Using Sentinel-1 InSAR Data. Remote Sensing, 9 (9), 876.

Predecir el impacto de movimientos de ladera