Monitorización del retroceso costero en la costa acantilada de Podes (Cabo Peñas, N de España) mediante técnicas topográficas y DInSAR

  1. J. Cuervas-Mons 1
  2. M.J. Domínguez-Cuesta 1
  3. P. González-Pumariega 1
  4. C. López-Fernández 1
  5. Pablo Valenzuela 2
  6. Felix Mateos-Redondo 3
  7. O. Monserrat 4
  8. A. Barra 4
  9. M. Jiménez-Sánchez 1
  1. 1 Universidad de Oviedo
    info

    Universidad de Oviedo

    Oviedo, España

    ROR https://ror.org/006gksa02

  2. 2 Tecnologías y Servicios Agrarios, Tragsatec S.A.
  3. 3 GEA Asesoría Geológica
  4. 4 Centro Tecnológico de Telecomunicaciones de Cataluña
Journal:
Geotemas (Madrid)

ISSN: 1576-5172

Year of publication: 2021

Issue Title: X Congreso Geológico de España

Issue: 18

Pages: 246

Type: Article

More publications in: Geotemas (Madrid)

Abstract

This work presents retreat measurements obtained along a 400 m long cliff section located in the Podes Peninsula (43º 37‘ 35’ ‘N, 5º 54’ 4 ‘’ W; Peñas Cape, N Spain). In this cliff, 30 m high and developed on Devonian limestone, dolomite and marl, active coastal erosion and slope movements are observed (Jiménez-Sánchez et al., 2019). The methodology included i) the acquisition and processing of SAR data from Sentinel-1 satellite (from 2018 to 2020), ii) the generation of ground deforma- tion velocity maps and deformation time series by means of the PSIG software and the GEP service, iii) the comparison of DInSAR results with the displacement measurements from 9 topographic nails and 12 pheno survey markers installed in the area and obtained with a total station between 2018 and 2020. The results confirm the need to combine several monitoring techniques in the analysis of retreating cliffs.