HVSR
The GE HVSR module, thanks to its complete synergy with Geoexplorer LOG-MT and the GeoBOX seismograph, allows complete control over the dataset to be processed, also capable of generating 1D models.
Recording data with Geoexplorer LOG-MT allows the calculation of HVSR in the field for data quality control and minimizes the risk of unprocessable datasets.
The Ge HVSR software provides complete freedom in the processing of the recorded data, allowing t to select the length of the windows and the HVSR peak.
There is the possibility to use different parameters for the HVSR curve calculation and to evaluate the absolute spectra of individual channels, as well as the ability to compare the experimental curve with other HVSR curves previously recorded.
THE GE-HVSR IS THE FIRST SOFTWARE IN THE WORLD TO HAVE PROPOSED THE QUALITATIVE ACOUSTIC ANALYSIS OF SEISMIC SIGNALS.
Through the seismic signal sonification technique, it is easy to discriminate the presence of anthropogenic noises that could potentially be harmful to the investigation.
Saving the dataset and work status allows for different processing and interpretation flows, allowing backups at various steps.
The software allows the processing of data by verifying possible stratigraphies and comparing the synthetic curve with the experimental data.
The GeoExplorer suite requires a Windows PC.
Pre-processing dataset and quality check
- Dataset sonification for transient identification
- Bookmarks for transients
Dataset processing
- Min adn max window length customization
- T10 visualization on HVSR
- Automatic window selection
- Amplitude treshold for automatic window selection
- Manual window selection
- Enable/disable windows
- Manual window repositioning (sample by sample)
- Selection of frequency range for HVSR calculation
- Selection of smoothing mode
- Correction of dataset with instrument response
- Verification of SESAME parameters on selected f0
- Multiple peack selection
- Work save and backup
Modelling
- Stratigraphic modeling
- Computation of Poisson's r from Vp and Vs
- stratigraphy
- Syntethic HVSR computation from stratigraphy
- Vs30 and VsEquivalent calculation
- Compatibility with Geopsy* (file .hv) for HVSR curve
- Comparison between various HVSR curves
The module does not require third-party software for graphical representations and it is possible to export each single image and table displayed.
The supported formats are:
• .saf
• .gse
• .seg
• .dat
IMPORTANT NOTE: The software is subject to continuous development and improvement; you are invited to critically evaluate the results of the processing carried out by the software.
