Sökning: "variogram parameters"
Hittade 4 avhandlingar innehållade orden variogram parameters.
1. Space-Time Prediction of Ocean Winds
Sammanfattning : The topic of this thesis is inspired by an experiment in which a vessel, laying a submarine cable, was provided with forecasts overlaid with satellite observations of significant wave height. During the operation, the vessel was close to an adverse weather area and the personnel on board could confirm that the forecast was not as close to the "ground truth" as the satellite observation was. LÄS MER
2. Estimations of Hydrogeological Properties in Vulnerability and Risk Assessments
Sammanfattning : The main objective of this thesis was to evaluate and develop approaches for hydrogeological vulnerability and risk assessments, starting with scant data and updating the results as new information becomes available. This work was performed within three separate projects between 1989 and 1995. LÄS MER
3. Characterisation and Modeling of Discontinuous Rock Mass: Geostatistical Interpretation of Seismic Response to Fracture Occurrence, Discrete Fracture Network Modeling and Stability Predictions for Underground Excavations
Sammanfattning : Geometric and mechanical characterisation of rock discontinuities is an essential constituent in deriving a reliable assessment of overall properties of crystalline rock mass. The knowledge about the occurrence, size, geometry pattern and intensity of joints/fractures is necessary to predict the performance of fractured rock as a fractured reservoir, or an underground transport and storage facility. LÄS MER
4. Reliability-based Assessment of Concrete Dam Stability
Sammanfattning : Risk management is increasingly used in dam safety and includes risk analysis, risk evaluation and risk reduction. Structural Reliability Analysis (SRA) is a probabilistic methodology that may be used in the risk assessment process. LÄS MER