نتایج جستجو برای: seismic survey map
تعداد نتایج: 595669 فیلتر نتایج به سال:
The acquisition footprint noise in migrated sections consists of migration artifacts associated with a discrete recording geometry. Such noise can corrupt the interpretation of seismic sections, especially for AVO studies, so it is critical to design an optimal seismic survey that generates the smallest footprint. Our previous work showed that the Seismic Array Theorem can be used to design bet...
This paper presents an assessment of the seismic hazard for the Markazi province. For approch to this aim based on Seismotectonic conditions, regional earthquake dam and seismicity analyses the active faults and potential seismic sources of the region are identified and illustrated in a seismotectonic map. By useing different thechniques such as “Time Normalization” a model of earthquake sourc...
Pletser et al. performed a seismic-refraction survey on Devon Island with the goal of assessing the feasibility of astronauts carrying out such operations on Mars to detect subsurface water. We demonstrate that the seismic analysis is fundamentally flawed. The survey performed in this test will likely bear little resemblance to future crewed geophysical surface operations, and better methods ex...
A 3D marine seismic survey of the Odoptu license area off northeastern Sakhalin Island, Russia, was conducted by DalMorNefteGeofizika (DMNG) on behalf of Exxon Neftegas Limited and the Sakhalin-1 consortium during mid-August through early September 2001. The key environmental issue identified in an environmental impact assessment was protection of the critically endangered western gray whale (E...
Seismic hazard analyses, either in a deterministic (DSHA) or probabilistic (PSHA) framework, are both commonly adopted for evaluating earthquake risk. Although different in methodology, both approaches involving tedious calculation are certainly a computer-aided analysis. For Taiwan, a few PSHA studies have been conducted, but not a single comprehensive DSHA study is yet available for this regi...
A new type of analyzing wavelets which optimally match seismic wavelets (SW wavelets) is presented. It is proved that these wavelets are admissible. The advantages of the SW wavelets are shown for the seismic data processing and attributes analysis. By taking one of the SW wavelets as analyzing wavelet, a wavelet transform method (WT method) of calculating the instantaneous spectrum bandwidth (...
Pygmy rabbit behavior and above ground burrow characteristics were monitored during seismic exploration in northern Utah in the fall of 2008. Burrow entrance characteristics (height and width) were evaluated at distances up to 250 m from the geophone line before and after the seismic survey. Burrow heights after the seismic survey were significantly lower than pre-treatment measurements 25m fro...
The seismic microzonation evaluate the seismic hazard at the local scale proposing to identify areas of territory characterized by homogeneous seismic behaviors. The first level of seismic microzoning has the purpose of defining the lithological properties and geometry of geological units that characterize these portions of territory (microzones). The scope of this work is to contribute to the ...
Artificial neural networks can be used effectively to identify and classify multiple events in a seismic data set. We use a specialized neural network, a self-organizing map, that tries to establish rules for the characterisation of the physical problem. Selected seismic data attributes are used as input patterns, such that the self-organizing map arranges the data in a manner that forms cluste...
Geosciences Network (GEON) is a grand-challenge project to prototype cyberinfrastructure for the Earth Sciences. GEON is building a mechanism for integration and visualization of seismic events and their related fault orientations--referred by seismologists as focal mechanisms (or "beach balls") with other image (map) services using a service oriented architecture (SOA). The Kepler scientific w...
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