A confidence interval is an interval in which a measurement falls with a given probability [1]. This paper addresses the question of defining the probability of a confidence interval that can be constructed when only a minimal number of measurements are known. The problem has a couple of significant applications. In geophysics, time-lapse 3D seismic monitoring is used to monitor oil and gas res...

Salt body interpretation is important for building subsurface models and interpreting seismic horizons and faults which might be truncated by the salt. Salt interpretation often includes two steps: highlighting salt boundaries with a salt attribute image, and extracting salt boundaries from the attribute image. Although both steps have been automated to some extent, salt interpretation today ty...

The results of a comparison between two different submarine mass wasting events, using differing methods of investigation are presented in this study. Remotely sensed geophysical data types, such as 3D seismic, can be used to image and analyze large-scale examples. The strengths of such techniques lie in the ability to image large areas (i.e. 10’s of sq km), allowing consideration of the broad-...

ADMASU, FITSUM. A Stochastic Method for Automated Matching of Horizons across a Fault in 3D Seismic Data. Seismic data are pictures showing subsurface seismic reflectivity. Seismic data interpretations concern with building geological models with the aim to describe relationship between the seismic data and a priori geological information. The models are used for hydrocarbon exploration or othe...

Bridges are potentially one of the most seismically vulnerable structures in the highway system during earthquake &#10 &#10events. It is known that the seismic performance of transportation systems plays a key role in the post-earthquake emergency management. Hence, it is necessary to evaluate both physical and functional aspects of bridge structures. The physical aspects of the seismic perform...

Self-centering rocking walls are known as viable alternatives to typical shear walls, as they provide a number of solutions for eliminating seismic flaws of conventional designs. These rocking walls have a generally positive impact on the seismic behavior of structural systems, but their design makes them susceptible to concrete crushing around their base, which can lead to significantly advers...

Wavefield propagation in an inhomogoneous medium is a complex phenomena, that must be understood if we are to extract information about both the sedimentary structures of prospective hydrocarbon provinces, and the elastic properties of the rocks and fluids of interest. A cursory examination of historically published “seismic survey planning” literature yields an overwhelming emphasis upon funda...

We present a concept for combing 3D models and multiple heterogeneous sensors into a surveillance system enabling superior situation awareness. The concept has many military as well as civilian applications. A key issue is the use of a 3D environment model of the area to be surveyed, typically an urban area. In addition to the 3D model, the area of interest is monitored over time using multiple...