A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Geostatistical downscaling of fracture surface topography accounting for local roughness
Abstract This study proposes a new geostatistical methodology that accounts for roughness characteristics when downscaling fracture surface topography. In the proposed approach, the small-scale fracture surface roughness is described using a “local roughness pattern” that indicates the relative height of a location compared to its surrounding locations, while the large-scale roughness is considered using the surface semivariogram. By accounting for both components–the minimization of the local error variance and the reproduction of the local roughness characteristics–into the objective function of simulated annealing, the fracture surface topography downscaling process was improved compared to standard geostatistical methodologies such as ordinary kriging and sequential Gaussian simulation. Downscaled topography data were then assessed in terms of prediction errors and roughness distribution.
Geostatistical downscaling of fracture surface topography accounting for local roughness
Abstract This study proposes a new geostatistical methodology that accounts for roughness characteristics when downscaling fracture surface topography. In the proposed approach, the small-scale fracture surface roughness is described using a “local roughness pattern” that indicates the relative height of a location compared to its surrounding locations, while the large-scale roughness is considered using the surface semivariogram. By accounting for both components–the minimization of the local error variance and the reproduction of the local roughness characteristics–into the objective function of simulated annealing, the fracture surface topography downscaling process was improved compared to standard geostatistical methodologies such as ordinary kriging and sequential Gaussian simulation. Downscaled topography data were then assessed in terms of prediction errors and roughness distribution.
Geostatistical downscaling of fracture surface topography accounting for local roughness
Saito, Hirotaka (author) / Grasselli, Giovanni (author)
Acta Geotechnica ; 5
2010
Article (Journal)
English
BKL:
56.20
Ingenieurgeologie, Bodenmechanik
/
56.20$jIngenieurgeologie$jBodenmechanik
DDC:
624.15105
Geostatistical downscaling of fracture surface topography accounting for local roughness
| British Library Online Contents | 2010
Geostatistical downscaling of fracture surface topography accounting for local roughness
| Springer Verlag | 2010
Geostatistical downscaling of fracture surface topography accounting for local roughness
| Springer Verlag | 2010
Topography integration to wind downscaling
| Online Contents | 2017
Topography integration to wind downscaling
| British Library Online Contents | 2017