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GeoStru Easy HVSR 2022.26.4.963 Multilingual 64-bit


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GeoStru Easy HVSR 2022.26.4.963 Multilingual 64-bit
Win | 42 MB

Horizontal Vertical Spectral Ratio - EASY HVSR allows the analysis of the spectral ratio of microtremors recorded with a single station.
The simplicity of use and speed of execution of the calculations allow the user to get immediate results in the estimation of resonance frequency, stratigraphic profile and equivalent shear wave velocity Vs, eq.
All according to the guidelines suggested by the SESAME project.
The software imports SEG2, SAF and ASCII files.

Customizing Analysis: The user can choose different ways to process the data, choosing the most appropriate methods for the directional sum of the traces in the horizontal directions, for the smoothing and for the frequency band to be analyzed. The user can choose from the most simple arithmetic mean to the mean square or geometric mean among the directional sums available. Among the methods for data smoothing suggested by the SESAME project can be chosen: by Konno & Ohmachi, Triangular constant and Triangular proportion. The user can choose the time windows to include or exclude with a simple checkmark, seeing in real time the changes made. The input data can be automatically filtered.

Displaying Data: All results are displayed in customizable charts. The available charts are the traces in the three directions analyzed with the representation of the time windows chosen; the average spectrum of the traces; the map for the verification of the recording's stationarity; the map for the verification of the recording's directional isotropy; The spectral ratio H/V with its confidence interval, having them with the possibility to overlap the ellipticity curve of more stratigraphic models not only of the fundamental mode, but also higher ones; the graphical representation of the stratigraphic profile; the velocity profile associated with the stratigraphy.

Results: The software automatically evaluates a first estimate of the stratigraphic model that best approximates the H/V spectral behaviour recorded in situ and analyzed so the user can refine it more rapidly. Is thus obtained, in addition to the natural vibration frequency of the stratigraphy typical to the HVSR technique, the immediate assessment of Vs30 and the shear wave velocity profile of the stratigraphic model assumed. On the chart of the spectral ratio, H/V are visible; in addition to the H/V curve with its confidence interval, all the ellipticity curves of the various modes of each stratigraphic model that the user can decide to add. In this way, it is possible to compare the differences from a qualitative point of view, and in addition, also a quantitative comparison with the estimate of the mismatch function between the 'fundamental' ellipticity curve and the curve of the spectral ratio H/V. Checks accompany all on the reliability of the H/V curve and its peak suggested by the SESAME project.

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System Requirements
• O.S.: Windows 8.1, Windows 10, Windows 11 (64-bit)
• CPU: Intel/AMD Dual-Core or higher
• RAM: 4 GB of system memory
• Graphics Card: 512 MB or higher
• Hard Drive: 100 GB of available space
• Display Resolution: 1024 x 768 or higher

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