A5069946246- Landslides and related hazards
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Geological and Geophysical Studies Worldwide
- Flood Risk Assessment and Management
- Cryospheric studies and observations
- Soil erosion and sediment transport
- 3D Surveying and Cultural Heritage
- Coastal and Marine Dynamics
- Geological formations and processes
- Soil and Unsaturated Flow
- Geology and Paleoclimatology Research
- Archaeology and Cultural Heritage
- Groundwater flow and contamination studies
- Aeolian processes and effects
- Building materials and conservation
- Environmental and Ecological Studies
- Geophysical and Geoelectrical Methods
- Groundwater and Watershed Analysis
- Geological Modeling and Analysis
- Medieval Architecture and Archaeology
- Geological and Tectonic Studies in Latin America
- Structural Health Monitoring Techniques
- earthquake and tectonic studies
- Surface Roughness and Optical Measurements
- Soil Moisture and Remote Sensing
Universidad de Oviedo
2019-2024
This paper introduces an assessment of the representation shape parameter measurements on theoretical particles. The aim study was to establish a numerical method for estimating sphericity, roundness, and roughness artificially designed particles evaluate their interdependence. parameters studied included fractal dimension (FD), solidity (So), Wadell’s roundness (Rw), perimeter-area normalized ratio (¥), sphericity (S). methods work included: (a) design with different shapes, (b) definition...
Extensive marine terraces preserved along the Cantabrian coast have been pointed out as good markers to understand recent tectonic evolution of margin in north Iberia. These landforms are interpreted a single, kilometric-wide abrasion platform eroded during Pliocene transgression (Mary 1983) which were later uplifted and faulted due activity (Álvarez-Marrón et al., 2008). A study also points continuous rising response lateral gradient crustal thickness mechanism explain...
<p>The Tazones Lighthouse landslide is an active mass movement affecting a stretch of the Cantabrian Coast (N Spain), characterized by presence almost vertical rocky cliffs developed on Jurassic rocks. The area being monitored since 2018 when irreversible structural damages appeared in building located surroundings lighthouse because fast evolution landslide.</p><p> </p><p>On June 2018, first 24 topographic...
Forecasting coastal dynamics and sea cliff retreat under different level rise scenarios requires a good understanding of the conditioning factors their relative contribution to stability. The so-called Jurassic Cantabrian Coast extends along 76 km coastline Asturias region (N Spain) is well-known worldwide due its paleontological heritage, in particular presence dinosaur remains footprints. abundance stratigraphic, tectonic studies contrasts with scarcity focused on stability this rocky...
The Lisbon metropolitan area (LMA, central-west of Portugal) has been severely affected by different geohazards (flooding episodes, landslides, subsidence, and earthquakes) that have generated considerable damage to properties infrastructures, in the order millions euros per year. This study is focused on analysis as related urban industrial activity. Utilizing A-DInSAR dataset applying active deformation areas (ADA) processing at regional scale allowed us perform a detailed subsidence...
The cliff coastline of the central region Asturias (N Spain) is severely affected by terrain instabilities, causing considerable damage to properties and infrastructures every year. In this study, we applied A-DInSAR technique based on Sentinel-1 imagery map monitor active slopes in an emblematic rocky area Asturian coast: Peñas Cape. dataset analysis has been focused at regional local scales. For scale assessment, six areas were selected previous work landslide database Principality...
Gravitational processes on inaccessible cliffs, especially in coastal areas, are difficult to study detail with only situ techniques. This difficulty can be overcome by the complementary application of remote sensing methods. work focuses an active complex landslide affecting slope Tazones Lighthouse (Cantabrian coast, North Iberian Peninsula), which has been monitored since June 2018. The aim this research is establish a conceptual model internal structure slope. A multitechnique approach...
Mass movements represent one of the most significant geohazards worldwide. The aim this research is to highlight potential and limitations European Ground Motion Service (EGMS) in detecting monitoring mass at a local scale, especially cases where data from situ instrumental devices are unavailable. study area corresponds La Miera landslide, located Asturias (NW Spain). multidisciplinary methodology applied involved following steps: (1) downloading, acquiring, analyzing Sentinel-1 A-DInSAR...
<p>Ground displacements associated to landslides can be analysed by means of geological, geotechnical, topographic and remote sensing techniques. In this work different classical techniques are combined with a satellite based technique: Differential SAR Interferometry (DInSAR). The provide precise measurements on set points strategically located for each landslide. DInSAR technique provides more opportunistic points, usually denser than techniques, providing key information the...
Future scenarios of sea level rise in Portugal are expected to put at risk sensitive areas from a natural and urban point view. This research proposes methodology for the assessment Hazard zones using evaluation permanent episodic components as important factors predict flooding coastal erosion hazards Shared Socioeconomic Pathway 1, 2 5 scenarios, 2040, 2070 2100.
En este trabajo se han aplicado las técnicas A-DInSAR (Interferometría SAR Diferencial Avanzadas) para estudiar los movimientos del terreno en el entorno de Boo, Asturias (N España). Para ello procesaron 57 imágenes satélite Sentinel-1 A entre febrero 2018 y enero 2020 por medio software PSIG (Persistent Scatterer Interferometry la División Geomática CTTC). Los resultados permitieron identificar velocidades medias deformación dirección suelo-satélite (LOS) que van desde –35,9 hasta 13,5...
<p>Landslides are one of the most common and dangerous threats in world that generate considerable damage economic losses. The aim this study is to analyse suitability using ESA G-POD (European Space Agency Grid Processing On Demand) environment detect landslide incidence.</p><p>This free service allows gain Mean Deformation Maps (mm/year cm/year) by means P-SBAS (Parallel-Small Baseline Subset) method, which a kind A-DInSAR (Advanced-Differential...
<p>In this work, the A-DInSAR techniques are applied in Central Asturias (N Spain). In area, presence of most important cities region is remarkable, as well industry and port infrastructures a dense road network. Moreover, specially known for their historical coal exploitation, which was developed mainly on Coal Basin almost 2 centuries, being abandoned from beginning 21<sup>st</sup>. The main aim study detecting analysing deformations associated to...
En este trabajo se realizó un análisis de la susceptibilidad ligada a desprendimientos roca en Ruta Las Xanas, Asturias. Para ello, estableció procedimiento metodológico que consistió en: i) recopilación bibliográfica y adquisición datos geoespaciales zona; ii) fotointerpretación campo, incluyó cartografía depósitos ladera e identificación factores determinantes susceptibilidad; iii) zonificación por tramos mediante Sistema Información Geográfica (SIG). La ha permitido establecer mayoría...
Abstract. The Tazones Lighthouse slope shows different active mass movements affecting an area of 70.000 m2 the Cantabrian Coast (N Spain), characterized by almost vertical rocky cliffs developed on Jurassic rocks: alternating marl, sandstone and limestone with three main stratigraphic structural discontinuity families. Between June 2018 May 2020, 22 monthly monitoring campaigns have been carried out to measure displacement 38 control points, located between 95–110 masl. total station has...
<p>In this work, the A-DInSAR techniques are applied in a mountainous area located Central South of Asturias (N Spain), where there significant landslide and subsidence phenomena. The main aim study is detecting analysing ground deformations associated to slope instabilities processes. For this, 113 SAR images, provided by Sentinel-1A/B between January 2018 February 2020, were acquired processed means PSIG software (developed Geomatics Division CTTC). results show velocity...
<p>The size and shape of rock constituent particles can provide substantial information about the environment in which rocks are formed also their evolution during geological history. There several processes that generate specific particle shapes. We focus on three effects as end members: sediment transport water producing sub-rounded particles, tectonic fracturing angular fragments chemical corrosion at grain boundaries increasing rugosity. In this work we test morphological...
En este trabajo ha sido realizado un análisis preliminar de movimientos del terreno en el área metropolitana Guayaquil (Ecuador), mediante la aplicación técnica A-DInSAR. Para ello se procesaron imágenes SAR Envisat ASAR entre febrero 2003 y agosto 2005 por medio servicio gratuito G-POD. Los resultados permitieron identificar tres importantes zonas deformación, con velocidades medias dirección suelo-satélite (LOS) que van desde -19,2 hasta 10,1 mm/año. Además, las deformaciones acumuladas...