geogiga

SURFACE is able to process active surface waves with SASW and MASW. The dispersion spectrum can be calculated in F-K, F-V, or F-P domain, where the fundamental and high-mode dispersion curves are interactively picked. The robust forward modeling and the global genetic algorithm (GA) assure the quick ...
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SURFACE3D loads dispersion curves generated from SURFACE or SURFACE PLUS and then plots the velocity volume as a cube or fence in 3D surface wave surveys. Features Load dispersion curves generated from SURFACE or SURFACE PLUS Check and redefine survey locations Plot dispersion curves Build ve ...
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MICROTREMOR MICROTREMOR uses spectrum analysis to get the predominant period and frequency of a site from ground motions. The amplitude or power spectrum and H/V spectral ratio can be plotted together. Features Select and analyze time segments Analyze amplitude or power spectrum Calculate and ...
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XW TOMO The velocity between wells can be estimated with travel time. Based on the grid ray tracing and regularized inversion approach, XW TOMO is capable of deriving the velocity structure among multiple vertical or deviated wells, while also allowing ground-surface variation. Features Quickly ...
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EFIT allows you to load or interactively define a velocity model and fit the synthetic refraction and reflection curves to the corresponding events on seismic records. Features Load velocity model from a text file Interactively define velocity model Calculate and display synthetic reflection a ...
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PS LOG is designed to efficiently process data in well velocity surveys. After the depth of receivers and the direction of a shot are defined, first breaks can be picked with the mouse button on P and S waves simultaneously in the analysis window. Meanwhile, the interval velocity, average velocity, ...
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