Redirigiendo al acceso original de articulo en 21 segundos...
Inicio  /  Geosciences  /  Vol: 8 Núm: 7 Par: July (2018)  /  Artículo
ARTÍCULO
TITULO

Generation of Persistent Scatterers in Non-Urban Areas: The Role of Microwave Scattering Parameters

Giovanni Nico    
Sérgio C. Oliveira    
Joao Catalão and José Luis Zêzere    

Resumen

In this work, we study the capability of the ground surface to generate Persistent Scatterers (PS) based on the lithology, slope and aspect angles. These properties affect the scattering behavior of the Synthetic Aperture Radar (SAR) signal, the interferometric phase stability and, as a consequence, the PS generation. Two-time series of interferometric SAR data acquired by two different SAR sensors in the C-band are processed to generate independent PS datasets. The region north of Lisbon, Portugal, characterized by sparse vegetation and lithology diversity, is chosen as study area. The PS frequency distribution is obtained in terms of lithology, slope and aspect angles. This relationship could be useful to estimate the expected PS density in landslide-prone areas, being lithology, slope and aspect angles important landslide predisposing factors.

 Artículos similares

       
 
Christos Polykretis, Kleomenis Kalogeropoulos, Panagiotis Andreopoulos, Antigoni Faka, Andreas Tsatsaris and Christos Chalkias    
The main purpose of this study is to comparatively assess the susceptibility of earthquake-triggered landslides in the island of Lefkada (Ionian Islands, Greece) using two different statistical analysis models, a bivariate model represented by frequency ... ver más
Revista: Geosciences

 
Manasi Debnath, Milap Chand Sharma and Hiambok Jones Syiemlieh    
This study provides a high resolution glacier database in the Changme Khangpu Basin (CKB) using LANDSAT 8 (2014) and Sentinel-2A image (2016), mapping of 81 glaciers that cover a 75.78 ± 1.54 km2 area. Composite maps of land surface temperature, slope an... ver más
Revista: Geosciences

 
Daria Ryabchuk, Alexander Sergeev, Alexander Krek, Maria Kapustina, Elena Tkacheva, Vladimir Zhamoida, Leonid Budanov, Alexandr Moskovtsev and Aleksandr Danchenkov    
In 2017, a detailed study of the Eastern Gulf of Finland (the Baltic Sea) seafloor was performed to identify and map submerged glacial and postglacial geomorphologic features and collect data pertinent to the understanding of sedimentation in postglacial... ver más
Revista: Geosciences

 
Fernando Marques    
Mass movements of different types and sizes are the main processes of sea cliff evolution, being a considerable natural hazard, the assessment of which is a relevant issue in terms of human loss prevention and land use regulations. To predict the occurre... ver más
Revista: Geosciences

 
Stefano Morelli, Veronica Pazzi, William Frodella and Riccardo Fanti    
On 4 November 2010, a deep-seated gravitational slope deformation (North Italy) reactivated with sudden ground movement. A 450,000 m2 mountainous area moved some metres downslope, but the undeniable signs were only connected to the triggering of a debris... ver más
Revista: Geosciences