Vs30 Structure of Almeria City (SE Spain) Using SPAC and MASW Methods and Proxy Correlations
Ficheros
Identificadores
Compartir
Metadatos
Mostrar el registro completo del ítemAutor
López, Fernando; Navarro Bernal, Manuel; Martínez Pagán, Pedro; García Jerez, Antonio; Pérez-Cuevas, Jaruselsky; [et al.]Fecha
2022-10-31Resumen
The topographic slope method is an innovative, fast and very low-cost technique for estimating the average S-wave velocity in the upper 30 m (Vs30) based on the relationship between this quantity and the slope of the ground, obtained using a Digital Elevation Model (DEM). The method is based on the good linear correlations log(Vs30)–log(slope) found experimentally, which, ideally, should be determined for each region. If measured Vs30 data are not available to carry out this fitting for the study area, correlations from other areas could be used, although the reliability of the estimated Vs30 results would be lower. In this article, Vs30 observations are made for the city of Almeria, using Spatial Autocorrelation Surveys (SPAC) and Multichannel Analysis of Surface Waves (MASW), obtaining two types of fitting: (a) linear relationship log(Vs30)–log(slope); and (b) considering additional dependence on geological units. The reliability, evaluated by Multiple R-Squared (MRS), varies between...
Palabra/s clave
topographic slope
shallow S-wave velocity structure
SPAC method
MASW method
proxy method